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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) && \
Peng Fan125d1932016-04-03 21:52:13 +080052 !defined(CONFIG_ENV_IS_IN_SATA) && \
Macpaul Linf3c615b2011-04-26 16:16:45 +000053 !defined(CONFIG_ENV_IS_IN_SPI_FLASH) && \
Liu Gang0a85a9e2012-03-08 00:33:20 +000054 !defined(CONFIG_ENV_IS_IN_REMOTE) && \
Joe Hershberger2b744332013-04-08 10:32:51 +000055 !defined(CONFIG_ENV_IS_IN_UBI) && \
Macpaul Linf3c615b2011-04-26 16:16:45 +000056 !defined(CONFIG_ENV_IS_NOWHERE)
unsik Kim75eb82e2009-02-25 11:31:24 +090057# error Define one of CONFIG_ENV_IS_IN_{EEPROM|FLASH|DATAFLASH|ONENAND|\
Peng Fan125d1932016-04-03 21:52:13 +080058SATA|SPI_FLASH|NVRAM|MMC|FAT|EXT4|REMOTE|UBI} or CONFIG_ENV_IS_NOWHERE
wdenka68d3ed2002-10-11 08:38:32 +000059#endif
60
Wolfgang Denkea882ba2010-06-20 23:33:59 +020061/*
62 * Maximum expected input data size for import command
63 */
64#define MAX_ENV_SIZE (1 << 20) /* 1 MiB */
wdenka68d3ed2002-10-11 08:38:32 +000065
wdenka68d3ed2002-10-11 08:38:32 +000066/*
Wolfgang Denkea882ba2010-06-20 23:33:59 +020067 * This variable is incremented on each do_env_set(), so it can
Heiko Schocherda954272009-04-28 08:36:11 +020068 * be used via get_env_id() as an indication, if the environment
69 * has changed or not. So it is possible to reread an environment
70 * variable only if the environment was changed ... done so for
71 * example in NetInitLoop()
72 */
Heiko Schocher2f70c492009-02-10 09:38:52 +010073static int env_id = 1;
wdenka68d3ed2002-10-11 08:38:32 +000074
Macpaul Linf3c615b2011-04-26 16:16:45 +000075int get_env_id(void)
Heiko Schocher2f70c492009-02-10 09:38:52 +010076{
77 return env_id;
78}
wdenka68d3ed2002-10-11 08:38:32 +000079
Ilya Yanok7ac2fe22012-09-18 00:22:50 +000080#ifndef CONFIG_SPL_BUILD
Mike Frysinger4c94f6c2009-05-24 02:26:19 -040081/*
Wolfgang Denkea882ba2010-06-20 23:33:59 +020082 * Command interface: print one or all environment variables
83 *
84 * Returns 0 in case of error, or length of printed string
Mike Frysinger4c94f6c2009-05-24 02:26:19 -040085 */
Joe Hershbergerbe112352012-12-11 22:16:23 -060086static int env_print(char *name, int flag)
wdenka68d3ed2002-10-11 08:38:32 +000087{
Wolfgang Denkea882ba2010-06-20 23:33:59 +020088 char *res = NULL;
Maxime Larocque22a4a6c2012-09-28 05:00:13 +000089 ssize_t len;
wdenka68d3ed2002-10-11 08:38:32 +000090
Wolfgang Denkea882ba2010-06-20 23:33:59 +020091 if (name) { /* print a single name */
92 ENTRY e, *ep;
wdenka68d3ed2002-10-11 08:38:32 +000093
Wolfgang Denkea882ba2010-06-20 23:33:59 +020094 e.key = name;
95 e.data = NULL;
Joe Hershbergerbe112352012-12-11 22:16:23 -060096 hsearch_r(e, FIND, &ep, &env_htab, flag);
Wolfgang Denkea882ba2010-06-20 23:33:59 +020097 if (ep == NULL)
98 return 0;
Macpaul Linf3c615b2011-04-26 16:16:45 +000099 len = printf("%s=%s\n", ep->key, ep->data);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200100 return len;
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400101 }
wdenka68d3ed2002-10-11 08:38:32 +0000102
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200103 /* print whole list */
Joe Hershbergerbe112352012-12-11 22:16:23 -0600104 len = hexport_r(&env_htab, '\n', flag, &res, 0, 0, NULL);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200105
106 if (len > 0) {
107 puts(res);
108 free(res);
109 return len;
110 }
111
112 /* should never happen */
Maxime Larocque22a4a6c2012-09-28 05:00:13 +0000113 printf("## Error: cannot export environment\n");
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200114 return 0;
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400115}
116
Kim Phillips088f1b12012-10-29 13:34:31 +0000117static int do_env_print(cmd_tbl_t *cmdtp, int flag, int argc,
118 char * const argv[])
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400119{
120 int i;
121 int rcode = 0;
Joe Hershbergerbe112352012-12-11 22:16:23 -0600122 int env_flag = H_HIDE_DOT;
123
124 if (argc > 1 && argv[1][0] == '-' && argv[1][1] == 'a') {
125 argc--;
126 argv++;
127 env_flag &= ~H_HIDE_DOT;
128 }
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400129
130 if (argc == 1) {
131 /* print all env vars */
Joe Hershbergerbe112352012-12-11 22:16:23 -0600132 rcode = env_print(NULL, env_flag);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200133 if (!rcode)
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400134 return 1;
135 printf("\nEnvironment size: %d/%ld bytes\n",
136 rcode, (ulong)ENV_SIZE);
wdenka68d3ed2002-10-11 08:38:32 +0000137 return 0;
138 }
139
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400140 /* print selected env vars */
Joe Hershbergerbe112352012-12-11 22:16:23 -0600141 env_flag &= ~H_HIDE_DOT;
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400142 for (i = 1; i < argc; ++i) {
Joe Hershbergerbe112352012-12-11 22:16:23 -0600143 int rc = env_print(argv[i], env_flag);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200144 if (!rc) {
145 printf("## Error: \"%s\" not defined\n", argv[i]);
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400146 ++rcode;
wdenka68d3ed2002-10-11 08:38:32 +0000147 }
148 }
Mike Frysinger4c94f6c2009-05-24 02:26:19 -0400149
wdenka68d3ed2002-10-11 08:38:32 +0000150 return rcode;
151}
152
Kim Phillipsa000b792011-04-05 07:15:14 +0000153#ifdef CONFIG_CMD_GREPENV
Igor Grinbergd09b1782011-11-07 01:13:59 +0000154static int do_env_grep(cmd_tbl_t *cmdtp, int flag,
155 int argc, char * const argv[])
Kim Phillipsa000b792011-04-05 07:15:14 +0000156{
Wolfgang Denk5a31ea02013-03-23 23:50:29 +0000157 char *res = NULL;
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000158 int len, grep_how, grep_what;
Kim Phillipsa000b792011-04-05 07:15:14 +0000159
160 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000161 return CMD_RET_USAGE;
Kim Phillipsa000b792011-04-05 07:15:14 +0000162
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000163 grep_how = H_MATCH_SUBSTR; /* default: substring search */
164 grep_what = H_MATCH_BOTH; /* default: grep names and values */
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000165
Pierre Aubert9a832332013-10-08 14:20:27 +0200166 while (--argc > 0 && **++argv == '-') {
167 char *arg = *argv;
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000168 while (*++arg) {
169 switch (*arg) {
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000170#ifdef CONFIG_REGEX
171 case 'e': /* use regex matching */
172 grep_how = H_MATCH_REGEX;
173 break;
174#endif
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000175 case 'n': /* grep for name */
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000176 grep_what = H_MATCH_KEY;
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000177 break;
178 case 'v': /* grep for value */
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000179 grep_what = H_MATCH_DATA;
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000180 break;
181 case 'b': /* grep for both */
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000182 grep_what = H_MATCH_BOTH;
Wolfgang Denkd87244d2013-03-23 23:50:30 +0000183 break;
184 case '-':
185 goto DONE;
186 default:
187 return CMD_RET_USAGE;
188 }
189 }
190 }
191
192DONE:
Wolfgang Denk5a31ea02013-03-23 23:50:29 +0000193 len = hexport_r(&env_htab, '\n',
Wolfgang Denkbe29df62013-03-23 23:50:32 +0000194 flag | grep_what | grep_how,
Wolfgang Denk5a31ea02013-03-23 23:50:29 +0000195 &res, 0, argc, argv);
Kim Phillipsa000b792011-04-05 07:15:14 +0000196
Wolfgang Denk5a31ea02013-03-23 23:50:29 +0000197 if (len > 0) {
198 puts(res);
199 free(res);
Kim Phillipsa000b792011-04-05 07:15:14 +0000200 }
201
Wolfgang Denk5a31ea02013-03-23 23:50:29 +0000202 if (len < 2)
203 return 1;
204
205 return 0;
Kim Phillipsa000b792011-04-05 07:15:14 +0000206}
207#endif
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000208#endif /* CONFIG_SPL_BUILD */
Kim Phillipsa000b792011-04-05 07:15:14 +0000209
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200210/*
Gerlando Falautoc3f65252012-08-24 00:11:37 +0000211 * Set a new environment variable,
212 * or replace or delete an existing one.
Joe Hershberger25980902012-12-11 22:16:31 -0600213 */
Joe Hershberger94b467b2015-05-20 14:27:21 -0500214static int _do_env_set(int flag, int argc, char * const argv[], int env_flag)
Gerlando Falautoc3f65252012-08-24 00:11:37 +0000215{
216 int i, len;
217 char *name, *value, *s;
218 ENTRY e, *ep;
219
Joe Hershberger24ab5a12012-12-11 22:16:35 -0600220 debug("Initial value for argc=%d\n", argc);
221 while (argc > 1 && **(argv + 1) == '-') {
222 char *arg = *++argv;
223
224 --argc;
225 while (*++arg) {
226 switch (*arg) {
227 case 'f': /* force */
228 env_flag |= H_FORCE;
229 break;
230 default:
231 return CMD_RET_USAGE;
232 }
233 }
234 }
235 debug("Final value for argc=%d\n", argc);
Gerlando Falautoc3f65252012-08-24 00:11:37 +0000236 name = argv[1];
237 value = argv[2];
238
239 if (strchr(name, '=')) {
240 printf("## Error: illegal character '='"
241 "in variable name \"%s\"\n", name);
242 return 1;
243 }
244
245 env_id++;
Gerlando Falautoc3f65252012-08-24 00:11:37 +0000246
wdenka68d3ed2002-10-11 08:38:32 +0000247 /* Delete only ? */
Igor Grinbergd09b1782011-11-07 01:13:59 +0000248 if (argc < 3 || argv[2] == NULL) {
Joe Hershberger24ab5a12012-12-11 22:16:35 -0600249 int rc = hdelete_r(name, &env_htab, env_flag);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200250 return !rc;
wdenka68d3ed2002-10-11 08:38:32 +0000251 }
252
253 /*
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200254 * Insert / replace new value
wdenka68d3ed2002-10-11 08:38:32 +0000255 */
Macpaul Linf3c615b2011-04-26 16:16:45 +0000256 for (i = 2, len = 0; i < argc; ++i)
wdenka68d3ed2002-10-11 08:38:32 +0000257 len += strlen(argv[i]) + 1;
Macpaul Linf3c615b2011-04-26 16:16:45 +0000258
259 value = malloc(len);
260 if (value == NULL) {
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200261 printf("## Can't malloc %d bytes\n", len);
wdenka68d3ed2002-10-11 08:38:32 +0000262 return 1;
263 }
Macpaul Linf3c615b2011-04-26 16:16:45 +0000264 for (i = 2, s = value; i < argc; ++i) {
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200265 char *v = argv[i];
wdenka68d3ed2002-10-11 08:38:32 +0000266
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200267 while ((*s++ = *v++) != '\0')
wdenka68d3ed2002-10-11 08:38:32 +0000268 ;
Igor Grinbergd09b1782011-11-07 01:13:59 +0000269 *(s - 1) = ' ';
wdenka68d3ed2002-10-11 08:38:32 +0000270 }
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200271 if (s != value)
272 *--s = '\0';
wdenka68d3ed2002-10-11 08:38:32 +0000273
Igor Grinbergd09b1782011-11-07 01:13:59 +0000274 e.key = name;
275 e.data = value;
Joe Hershberger24ab5a12012-12-11 22:16:35 -0600276 hsearch_r(e, ENTER, &ep, &env_htab, env_flag);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200277 free(value);
278 if (!ep) {
279 printf("## Error inserting \"%s\" variable, errno=%d\n",
280 name, errno);
281 return 1;
282 }
wdenka68d3ed2002-10-11 08:38:32 +0000283
wdenka68d3ed2002-10-11 08:38:32 +0000284 return 0;
285}
286
Wolfgang Denk84b5e802011-07-29 14:42:18 +0200287int setenv(const char *varname, const char *varvalue)
wdenka68d3ed2002-10-11 08:38:32 +0000288{
Wolfgang Denk84b5e802011-07-29 14:42:18 +0200289 const char * const argv[4] = { "setenv", varname, varvalue, NULL };
290
Joe Hershbergera7eb1d62013-04-08 10:32:50 +0000291 /* before import into hashtable */
292 if (!(gd->flags & GD_FLG_ENV_READY))
293 return 1;
294
Igor Grinbergd09b1782011-11-07 01:13:59 +0000295 if (varvalue == NULL || varvalue[0] == '\0')
Joe Hershberger94b467b2015-05-20 14:27:21 -0500296 return _do_env_set(0, 2, (char * const *)argv, H_PROGRAMMATIC);
Jeffrey Mann9ffd4512007-04-23 14:00:11 +0200297 else
Joe Hershberger94b467b2015-05-20 14:27:21 -0500298 return _do_env_set(0, 3, (char * const *)argv, H_PROGRAMMATIC);
wdenka68d3ed2002-10-11 08:38:32 +0000299}
300
Simon Glassd67f10c2011-10-24 17:59:59 +0000301/**
302 * Set an environment variable to an integer value
303 *
Simon Glass96022862013-05-07 06:11:45 +0000304 * @param varname Environment variable to set
Simon Glassd67f10c2011-10-24 17:59:59 +0000305 * @param value Value to set it to
306 * @return 0 if ok, 1 on error
307 */
308int setenv_ulong(const char *varname, ulong value)
309{
310 /* TODO: this should be unsigned */
311 char *str = simple_itoa(value);
312
313 return setenv(varname, str);
314}
315
316/**
Simon Glassbfc59962013-02-24 17:33:21 +0000317 * Set an environment variable to an value in hex
Simon Glassd67f10c2011-10-24 17:59:59 +0000318 *
Simon Glass96022862013-05-07 06:11:45 +0000319 * @param varname Environment variable to set
Simon Glassbfc59962013-02-24 17:33:21 +0000320 * @param value Value to set it to
Simon Glassd67f10c2011-10-24 17:59:59 +0000321 * @return 0 if ok, 1 on error
322 */
Simon Glassbfc59962013-02-24 17:33:21 +0000323int setenv_hex(const char *varname, ulong value)
Simon Glassd67f10c2011-10-24 17:59:59 +0000324{
325 char str[17];
326
Simon Glassbfc59962013-02-24 17:33:21 +0000327 sprintf(str, "%lx", value);
Simon Glassd67f10c2011-10-24 17:59:59 +0000328 return setenv(varname, str);
329}
330
Simon Glass76b8f792013-04-20 08:42:43 +0000331ulong getenv_hex(const char *varname, ulong default_val)
332{
333 const char *s;
334 ulong value;
335 char *endp;
336
337 s = getenv(varname);
338 if (s)
339 value = simple_strtoul(s, &endp, 16);
340 if (!s || endp == s)
341 return default_val;
342
343 return value;
344}
345
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000346#ifndef CONFIG_SPL_BUILD
Kim Phillips088f1b12012-10-29 13:34:31 +0000347static int do_env_set(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenka68d3ed2002-10-11 08:38:32 +0000348{
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200349 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000350 return CMD_RET_USAGE;
wdenka68d3ed2002-10-11 08:38:32 +0000351
Joe Hershberger94b467b2015-05-20 14:27:21 -0500352 return _do_env_set(flag, argc, argv, H_INTERACTIVE);
wdenka68d3ed2002-10-11 08:38:32 +0000353}
354
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200355/*
wdenka68d3ed2002-10-11 08:38:32 +0000356 * Prompt for environment variable
357 */
Jon Loeligerc76fe472007-07-08 18:02:23 -0500358#if defined(CONFIG_CMD_ASKENV)
Macpaul Linf3c615b2011-04-26 16:16:45 +0000359int do_env_ask(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenka68d3ed2002-10-11 08:38:32 +0000360{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200361 char message[CONFIG_SYS_CBSIZE];
Wolfgang Denk7d855912013-02-20 04:53:16 +0000362 int i, len, pos, size;
wdenka68d3ed2002-10-11 08:38:32 +0000363 char *local_args[4];
Wolfgang Denk7d855912013-02-20 04:53:16 +0000364 char *endptr;
wdenka68d3ed2002-10-11 08:38:32 +0000365
366 local_args[0] = argv[0];
367 local_args[1] = argv[1];
368 local_args[2] = NULL;
369 local_args[3] = NULL;
370
Wolfgang Denk7d855912013-02-20 04:53:16 +0000371 /*
372 * Check the syntax:
373 *
374 * env_ask envname [message1 ...] [size]
375 */
376 if (argc == 1)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000377 return CMD_RET_USAGE;
wdenka68d3ed2002-10-11 08:38:32 +0000378
Wolfgang Denk7d855912013-02-20 04:53:16 +0000379 /*
380 * We test the last argument if it can be converted
381 * into a decimal number. If yes, we assume it's
382 * the size. Otherwise we echo it as part of the
383 * message.
384 */
385 i = simple_strtoul(argv[argc - 1], &endptr, 10);
386 if (*endptr != '\0') { /* no size */
387 size = CONFIG_SYS_CBSIZE - 1;
388 } else { /* size given */
389 size = i;
390 --argc;
391 }
wdenka68d3ed2002-10-11 08:38:32 +0000392
Wolfgang Denk7d855912013-02-20 04:53:16 +0000393 if (argc <= 2) {
394 sprintf(message, "Please enter '%s': ", argv[1]);
395 } else {
396 /* env_ask envname message1 ... messagen [size] */
397 for (i = 2, pos = 0; i < argc; i++) {
Macpaul Linf3c615b2011-04-26 16:16:45 +0000398 if (pos)
wdenka68d3ed2002-10-11 08:38:32 +0000399 message[pos++] = ' ';
Macpaul Linf3c615b2011-04-26 16:16:45 +0000400
Igor Grinbergd09b1782011-11-07 01:13:59 +0000401 strcpy(message + pos, argv[i]);
wdenka68d3ed2002-10-11 08:38:32 +0000402 pos += strlen(argv[i]);
403 }
Wolfgang Denk7d855912013-02-20 04:53:16 +0000404 message[pos++] = ' ';
wdenka68d3ed2002-10-11 08:38:32 +0000405 message[pos] = '\0';
wdenka68d3ed2002-10-11 08:38:32 +0000406 }
407
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200408 if (size >= CONFIG_SYS_CBSIZE)
409 size = CONFIG_SYS_CBSIZE - 1;
wdenka68d3ed2002-10-11 08:38:32 +0000410
411 if (size <= 0)
412 return 1;
413
414 /* prompt for input */
Simon Glasse1bf8242014-04-10 20:01:27 -0600415 len = cli_readline(message);
wdenka68d3ed2002-10-11 08:38:32 +0000416
417 if (size < len)
418 console_buffer[size] = '\0';
419
420 len = 2;
421 if (console_buffer[0] != '\0') {
422 local_args[2] = console_buffer;
423 len = 3;
424 }
425
426 /* Continue calling setenv code */
Joe Hershberger94b467b2015-05-20 14:27:21 -0500427 return _do_env_set(flag, len, local_args, H_INTERACTIVE);
wdenka68d3ed2002-10-11 08:38:32 +0000428}
Jon Loeliger90253172007-07-10 11:02:44 -0500429#endif
wdenka68d3ed2002-10-11 08:38:32 +0000430
Joe Hershberger5e2b3e02012-12-11 22:16:25 -0600431#if defined(CONFIG_CMD_ENV_CALLBACK)
Joe Hershbergercca98fd2015-05-20 14:27:19 -0500432static int print_static_binding(const char *var_name, const char *callback_name,
433 void *priv)
Joe Hershberger5e2b3e02012-12-11 22:16:25 -0600434{
435 printf("\t%-20s %-20s\n", var_name, callback_name);
436
437 return 0;
438}
439
440static int print_active_callback(ENTRY *entry)
441{
442 struct env_clbk_tbl *clbkp;
443 int i;
444 int num_callbacks;
445
446 if (entry->callback == NULL)
447 return 0;
448
449 /* look up the callback in the linker-list */
450 num_callbacks = ll_entry_count(struct env_clbk_tbl, env_clbk);
451 for (i = 0, clbkp = ll_entry_start(struct env_clbk_tbl, env_clbk);
452 i < num_callbacks;
453 i++, clbkp++) {
454#if defined(CONFIG_NEEDS_MANUAL_RELOC)
455 if (entry->callback == clbkp->callback + gd->reloc_off)
456#else
457 if (entry->callback == clbkp->callback)
458#endif
459 break;
460 }
461
462 if (i == num_callbacks)
463 /* this should probably never happen, but just in case... */
464 printf("\t%-20s %p\n", entry->key, entry->callback);
465 else
466 printf("\t%-20s %-20s\n", entry->key, clbkp->name);
467
468 return 0;
469}
470
471/*
472 * Print the callbacks available and what they are bound to
473 */
474int do_env_callback(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
475{
476 struct env_clbk_tbl *clbkp;
477 int i;
478 int num_callbacks;
479
480 /* Print the available callbacks */
481 puts("Available callbacks:\n");
482 puts("\tCallback Name\n");
483 puts("\t-------------\n");
484 num_callbacks = ll_entry_count(struct env_clbk_tbl, env_clbk);
485 for (i = 0, clbkp = ll_entry_start(struct env_clbk_tbl, env_clbk);
486 i < num_callbacks;
487 i++, clbkp++)
488 printf("\t%s\n", clbkp->name);
489 puts("\n");
490
491 /* Print the static bindings that may exist */
492 puts("Static callback bindings:\n");
493 printf("\t%-20s %-20s\n", "Variable Name", "Callback Name");
494 printf("\t%-20s %-20s\n", "-------------", "-------------");
Joe Hershbergercca98fd2015-05-20 14:27:19 -0500495 env_attr_walk(ENV_CALLBACK_LIST_STATIC, print_static_binding, NULL);
Joe Hershberger5e2b3e02012-12-11 22:16:25 -0600496 puts("\n");
497
498 /* walk through each variable and print the callback if it has one */
499 puts("Active callback bindings:\n");
500 printf("\t%-20s %-20s\n", "Variable Name", "Callback Name");
501 printf("\t%-20s %-20s\n", "-------------", "-------------");
502 hwalk_r(&env_htab, print_active_callback);
503 return 0;
504}
505#endif
506
Joe Hershbergerfffad712012-12-11 22:16:33 -0600507#if defined(CONFIG_CMD_ENV_FLAGS)
Joe Hershbergercca98fd2015-05-20 14:27:19 -0500508static int print_static_flags(const char *var_name, const char *flags,
509 void *priv)
Joe Hershbergerfffad712012-12-11 22:16:33 -0600510{
511 enum env_flags_vartype type = env_flags_parse_vartype(flags);
Joe Hershberger267541f2012-12-11 22:16:34 -0600512 enum env_flags_varaccess access = env_flags_parse_varaccess(flags);
Joe Hershbergerfffad712012-12-11 22:16:33 -0600513
Joe Hershberger267541f2012-12-11 22:16:34 -0600514 printf("\t%-20s %-20s %-20s\n", var_name,
515 env_flags_get_vartype_name(type),
516 env_flags_get_varaccess_name(access));
Joe Hershbergerfffad712012-12-11 22:16:33 -0600517
518 return 0;
519}
520
521static int print_active_flags(ENTRY *entry)
522{
523 enum env_flags_vartype type;
Joe Hershberger267541f2012-12-11 22:16:34 -0600524 enum env_flags_varaccess access;
Joe Hershbergerfffad712012-12-11 22:16:33 -0600525
526 if (entry->flags == 0)
527 return 0;
528
529 type = (enum env_flags_vartype)
530 (entry->flags & ENV_FLAGS_VARTYPE_BIN_MASK);
Joe Hershberger267541f2012-12-11 22:16:34 -0600531 access = env_flags_parse_varaccess_from_binflags(entry->flags);
532 printf("\t%-20s %-20s %-20s\n", entry->key,
533 env_flags_get_vartype_name(type),
534 env_flags_get_varaccess_name(access));
Joe Hershbergerfffad712012-12-11 22:16:33 -0600535
536 return 0;
537}
538
539/*
540 * Print the flags available and what variables have flags
541 */
542int do_env_flags(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
543{
544 /* Print the available variable types */
545 printf("Available variable type flags (position %d):\n",
546 ENV_FLAGS_VARTYPE_LOC);
547 puts("\tFlag\tVariable Type Name\n");
548 puts("\t----\t------------------\n");
549 env_flags_print_vartypes();
550 puts("\n");
551
Joe Hershberger267541f2012-12-11 22:16:34 -0600552 /* Print the available variable access types */
553 printf("Available variable access flags (position %d):\n",
554 ENV_FLAGS_VARACCESS_LOC);
555 puts("\tFlag\tVariable Access Name\n");
556 puts("\t----\t--------------------\n");
557 env_flags_print_varaccess();
558 puts("\n");
559
Joe Hershbergerfffad712012-12-11 22:16:33 -0600560 /* Print the static flags that may exist */
561 puts("Static flags:\n");
Joe Hershberger267541f2012-12-11 22:16:34 -0600562 printf("\t%-20s %-20s %-20s\n", "Variable Name", "Variable Type",
563 "Variable Access");
564 printf("\t%-20s %-20s %-20s\n", "-------------", "-------------",
565 "---------------");
Joe Hershbergercca98fd2015-05-20 14:27:19 -0500566 env_attr_walk(ENV_FLAGS_LIST_STATIC, print_static_flags, NULL);
Joe Hershbergerfffad712012-12-11 22:16:33 -0600567 puts("\n");
568
569 /* walk through each variable and print the flags if non-default */
570 puts("Active flags:\n");
Joe Hershberger267541f2012-12-11 22:16:34 -0600571 printf("\t%-20s %-20s %-20s\n", "Variable Name", "Variable Type",
572 "Variable Access");
573 printf("\t%-20s %-20s %-20s\n", "-------------", "-------------",
574 "---------------");
Joe Hershbergerfffad712012-12-11 22:16:33 -0600575 hwalk_r(&env_htab, print_active_flags);
576 return 0;
577}
578#endif
579
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200580/*
Peter Tyser246c6922009-10-25 15:12:56 -0500581 * Interactively edit an environment variable
582 */
583#if defined(CONFIG_CMD_EDITENV)
Kim Phillips088f1b12012-10-29 13:34:31 +0000584static int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc,
585 char * const argv[])
Peter Tyser246c6922009-10-25 15:12:56 -0500586{
587 char buffer[CONFIG_SYS_CBSIZE];
588 char *init_val;
Peter Tyser246c6922009-10-25 15:12:56 -0500589
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200590 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000591 return CMD_RET_USAGE;
Peter Tyser246c6922009-10-25 15:12:56 -0500592
Joe Hershberger94b467b2015-05-20 14:27:21 -0500593 /* before import into hashtable */
594 if (!(gd->flags & GD_FLG_ENV_READY))
595 return 1;
596
Peter Tyser246c6922009-10-25 15:12:56 -0500597 /* Set read buffer to initial value or empty sting */
598 init_val = getenv(argv[1]);
599 if (init_val)
Peng Fan5d49b4c2015-12-23 12:08:09 +0800600 snprintf(buffer, CONFIG_SYS_CBSIZE, "%s", init_val);
Peter Tyser246c6922009-10-25 15:12:56 -0500601 else
602 buffer[0] = '\0';
603
Simon Glasse1bf8242014-04-10 20:01:27 -0600604 if (cli_readline_into_buffer("edit: ", buffer, 0) < 0)
Joe Hershberger18a3cce2013-02-08 10:12:34 +0000605 return 1;
Peter Tyser246c6922009-10-25 15:12:56 -0500606
Joe Hershberger94b467b2015-05-20 14:27:21 -0500607 if (buffer[0] == '\0') {
608 const char * const _argv[3] = { "setenv", argv[1], NULL };
609
610 return _do_env_set(0, 2, (char * const *)_argv, H_INTERACTIVE);
611 } else {
612 const char * const _argv[4] = { "setenv", argv[1], buffer,
613 NULL };
614
615 return _do_env_set(0, 3, (char * const *)_argv, H_INTERACTIVE);
616 }
Peter Tyser246c6922009-10-25 15:12:56 -0500617}
618#endif /* CONFIG_CMD_EDITENV */
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000619#endif /* CONFIG_SPL_BUILD */
Peter Tyser246c6922009-10-25 15:12:56 -0500620
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200621/*
wdenka68d3ed2002-10-11 08:38:32 +0000622 * Look up variable from environment,
623 * return address of storage for that variable,
624 * or NULL if not found
625 */
Wolfgang Denk84b5e802011-07-29 14:42:18 +0200626char *getenv(const char *name)
wdenka68d3ed2002-10-11 08:38:32 +0000627{
Igor Grinbergd09b1782011-11-07 01:13:59 +0000628 if (gd->flags & GD_FLG_ENV_READY) { /* after import into hashtable */
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200629 ENTRY e, *ep;
wdenka68d3ed2002-10-11 08:38:32 +0000630
Wolfgang Denk91a76752010-07-24 20:22:02 +0200631 WATCHDOG_RESET();
wdenk2a3cb022002-11-05 21:01:48 +0000632
Igor Grinbergd09b1782011-11-07 01:13:59 +0000633 e.key = name;
634 e.data = NULL;
Joe Hershbergerc4e00572012-12-11 22:16:19 -0600635 hsearch_r(e, FIND, &ep, &env_htab, 0);
wdenka68d3ed2002-10-11 08:38:32 +0000636
Macpaul Linf3c615b2011-04-26 16:16:45 +0000637 return ep ? ep->data : NULL;
wdenka68d3ed2002-10-11 08:38:32 +0000638 }
639
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200640 /* restricted capabilities before import */
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200641 if (getenv_f(name, (char *)(gd->env_buf), sizeof(gd->env_buf)) > 0)
642 return (char *)(gd->env_buf);
643
644 return NULL;
wdenka68d3ed2002-10-11 08:38:32 +0000645}
646
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200647/*
648 * Look up variable from environment for restricted C runtime env.
649 */
Wolfgang Denk84b5e802011-07-29 14:42:18 +0200650int getenv_f(const char *name, char *buf, unsigned len)
wdenka68d3ed2002-10-11 08:38:32 +0000651{
652 int i, nxt;
653
Igor Grinbergd09b1782011-11-07 01:13:59 +0000654 for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
wdenka68d3ed2002-10-11 08:38:32 +0000655 int val, n;
656
Macpaul Linf3c615b2011-04-26 16:16:45 +0000657 for (nxt = i; env_get_char(nxt) != '\0'; ++nxt) {
658 if (nxt >= CONFIG_ENV_SIZE)
659 return -1;
wdenka68d3ed2002-10-11 08:38:32 +0000660 }
Macpaul Linf3c615b2011-04-26 16:16:45 +0000661
662 val = envmatch((uchar *)name, i);
663 if (val < 0)
wdenka68d3ed2002-10-11 08:38:32 +0000664 continue;
Wolfgang Denk9ed4a952010-07-24 22:16:20 +0200665
wdenka68d3ed2002-10-11 08:38:32 +0000666 /* found; copy out */
Macpaul Linf3c615b2011-04-26 16:16:45 +0000667 for (n = 0; n < len; ++n, ++buf) {
Igor Grinbergd09b1782011-11-07 01:13:59 +0000668 *buf = env_get_char(val++);
669 if (*buf == '\0')
Wolfgang Denk9ed4a952010-07-24 22:16:20 +0200670 return n;
671 }
672
673 if (n)
674 *--buf = '\0';
675
Wolfgang Denka02a8842011-05-04 10:29:49 +0000676 printf("env_buf [%d bytes] too small for value of \"%s\"\n",
677 len, name);
Wolfgang Denk9ed4a952010-07-24 22:16:20 +0200678
679 return n;
wdenka68d3ed2002-10-11 08:38:32 +0000680 }
Igor Grinbergd09b1782011-11-07 01:13:59 +0000681
Macpaul Linf3c615b2011-04-26 16:16:45 +0000682 return -1;
wdenka68d3ed2002-10-11 08:38:32 +0000683}
684
Simon Glass4a9b4132011-10-14 13:25:18 +0000685/**
686 * Decode the integer value of an environment variable and return it.
687 *
688 * @param name Name of environemnt variable
689 * @param base Number base to use (normally 10, or 16 for hex)
690 * @param default_val Default value to return if the variable is not
691 * found
692 * @return the decoded value, or default_val if not found
693 */
694ulong getenv_ulong(const char *name, int base, ulong default_val)
695{
696 /*
697 * We can use getenv() here, even before relocation, since the
698 * environment variable value is an integer and thus short.
699 */
700 const char *str = getenv(name);
701
702 return str ? simple_strtoul(str, NULL, base) : default_val;
703}
704
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000705#ifndef CONFIG_SPL_BUILD
Mike Frysingerbdab39d2009-01-28 19:08:14 -0500706#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
Kim Phillips088f1b12012-10-29 13:34:31 +0000707static int do_env_save(cmd_tbl_t *cmdtp, int flag, int argc,
708 char * const argv[])
wdenka68d3ed2002-10-11 08:38:32 +0000709{
Macpaul Linf3c615b2011-04-26 16:16:45 +0000710 printf("Saving Environment to %s...\n", env_name_spec);
wdenka68d3ed2002-10-11 08:38:32 +0000711
Macpaul Linf3c615b2011-04-26 16:16:45 +0000712 return saveenv() ? 1 : 0;
wdenka68d3ed2002-10-11 08:38:32 +0000713}
wdenk8bde7f72003-06-27 21:31:46 +0000714
Mike Frysingerba69dc22008-12-30 02:59:25 -0500715U_BOOT_CMD(
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200716 saveenv, 1, 0, do_env_save,
Peter Tyser2fb26042009-01-27 18:03:12 -0600717 "save environment variables to persistent storage",
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200718 ""
Mike Frysingerba69dc22008-12-30 02:59:25 -0500719);
wdenka68d3ed2002-10-11 08:38:32 +0000720#endif
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000721#endif /* CONFIG_SPL_BUILD */
wdenka68d3ed2002-10-11 08:38:32 +0000722
723
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200724/*
wdenka68d3ed2002-10-11 08:38:32 +0000725 * Match a name / name=value pair
726 *
727 * s1 is either a simple 'name', or a 'name=value' pair.
728 * i2 is the environment index for a 'name2=value2' pair.
Igor Grinbergd09b1782011-11-07 01:13:59 +0000729 * If the names match, return the index for the value2, else -1.
wdenka68d3ed2002-10-11 08:38:32 +0000730 */
Macpaul Linf3c615b2011-04-26 16:16:45 +0000731int envmatch(uchar *s1, int i2)
wdenka68d3ed2002-10-11 08:38:32 +0000732{
Joe Hershberger586197d2012-10-03 09:38:50 +0000733 if (s1 == NULL)
734 return -1;
735
wdenka68d3ed2002-10-11 08:38:32 +0000736 while (*s1 == env_get_char(i2++))
737 if (*s1++ == '=')
Macpaul Linf3c615b2011-04-26 16:16:45 +0000738 return i2;
Igor Grinbergd09b1782011-11-07 01:13:59 +0000739
wdenka68d3ed2002-10-11 08:38:32 +0000740 if (*s1 == '\0' && env_get_char(i2-1) == '=')
Macpaul Linf3c615b2011-04-26 16:16:45 +0000741 return i2;
Igor Grinbergd09b1782011-11-07 01:13:59 +0000742
Macpaul Linf3c615b2011-04-26 16:16:45 +0000743 return -1;
wdenka68d3ed2002-10-11 08:38:32 +0000744}
wdenk8bde7f72003-06-27 21:31:46 +0000745
Ilya Yanok7ac2fe22012-09-18 00:22:50 +0000746#ifndef CONFIG_SPL_BUILD
Gerlando Falautob64b7c32012-08-24 00:11:41 +0000747static int do_env_default(cmd_tbl_t *cmdtp, int __flag,
Igor Grinbergd09b1782011-11-07 01:13:59 +0000748 int argc, char * const argv[])
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200749{
Gerlando Falautob64b7c32012-08-24 00:11:41 +0000750 int all = 0, flag = 0;
Macpaul Linf3c615b2011-04-26 16:16:45 +0000751
Gerlando Falautob64b7c32012-08-24 00:11:41 +0000752 debug("Initial value for argc=%d\n", argc);
753 while (--argc > 0 && **++argv == '-') {
754 char *arg = *argv;
755
756 while (*++arg) {
757 switch (*arg) {
758 case 'a': /* default all */
759 all = 1;
760 break;
761 case 'f': /* force */
762 flag |= H_FORCE;
763 break;
764 default:
765 return cmd_usage(cmdtp);
766 }
767 }
768 }
769 debug("Final value for argc=%d\n", argc);
770 if (all && (argc == 0)) {
771 /* Reset the whole environment */
772 set_default_env("## Resetting to default environment\n");
773 return 0;
774 }
775 if (!all && (argc > 0)) {
776 /* Reset individual variables */
777 set_default_vars(argc, argv);
778 return 0;
779 }
780
781 return cmd_usage(cmdtp);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200782}
wdenk8bde7f72003-06-27 21:31:46 +0000783
Igor Grinbergd09b1782011-11-07 01:13:59 +0000784static int do_env_delete(cmd_tbl_t *cmdtp, int flag,
785 int argc, char * const argv[])
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200786{
Joe Hershberger9d8d6612012-12-11 22:16:36 -0600787 int env_flag = H_INTERACTIVE;
788 int ret = 0;
789
790 debug("Initial value for argc=%d\n", argc);
791 while (argc > 1 && **(argv + 1) == '-') {
792 char *arg = *++argv;
793
794 --argc;
795 while (*++arg) {
796 switch (*arg) {
797 case 'f': /* force */
798 env_flag |= H_FORCE;
799 break;
800 default:
801 return CMD_RET_USAGE;
802 }
803 }
804 }
805 debug("Final value for argc=%d\n", argc);
806
807 env_id++;
808
809 while (--argc > 0) {
810 char *name = *++argv;
811
812 if (!hdelete_r(name, &env_htab, env_flag))
813 ret = 1;
814 }
815
816 return ret;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200817}
818
Mike Frysinger0c79cda2010-12-26 23:09:45 -0500819#ifdef CONFIG_CMD_EXPORTENV
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200820/*
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100821 * env export [-t | -b | -c] [-s size] addr [var ...]
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200822 * -t: export as text format; if size is given, data will be
823 * padded with '\0' bytes; if not, one terminating '\0'
824 * will be added (which is included in the "filesize"
825 * setting so you can for exmple copy this to flash and
826 * keep the termination).
827 * -b: export as binary format (name=value pairs separated by
828 * '\0', list end marked by double "\0\0")
829 * -c: export as checksum protected environment format as
830 * used for example by "saveenv" command
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100831 * -s size:
832 * size of output buffer
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200833 * addr: memory address where environment gets stored
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100834 * var... List of variable names that get included into the
835 * export. Without arguments, the whole environment gets
836 * exported.
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200837 *
838 * With "-c" and size is NOT given, then the export command will
839 * format the data as currently used for the persistent storage,
840 * i. e. it will use CONFIG_ENV_SECT_SIZE as output block size and
841 * prepend a valid CRC32 checksum and, in case of resundant
842 * environment, a "current" redundancy flag. If size is given, this
843 * value will be used instead of CONFIG_ENV_SECT_SIZE; again, CRC32
844 * checksum and redundancy flag will be inserted.
845 *
846 * With "-b" and "-t", always only the real data (including a
847 * terminating '\0' byte) will be written; here the optional size
848 * argument will be used to make sure not to overflow the user
849 * provided buffer; the command will abort if the size is not
850 * sufficient. Any remainign space will be '\0' padded.
851 *
852 * On successful return, the variable "filesize" will be set.
853 * Note that filesize includes the trailing/terminating '\0' byte(s).
854 *
855 * Usage szenario: create a text snapshot/backup of the current settings:
856 *
857 * => env export -t 100000
858 * => era ${backup_addr} +${filesize}
859 * => cp.b 100000 ${backup_addr} ${filesize}
860 *
861 * Re-import this snapshot, deleting all other settings:
862 *
863 * => env import -d -t ${backup_addr}
864 */
Igor Grinbergd09b1782011-11-07 01:13:59 +0000865static int do_env_export(cmd_tbl_t *cmdtp, int flag,
866 int argc, char * const argv[])
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200867{
868 char buf[32];
Simon Glassfd37dac2013-10-25 23:01:31 -0600869 ulong addr;
870 char *ptr, *cmd, *res;
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100871 size_t size = 0;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200872 ssize_t len;
873 env_t *envp;
874 char sep = '\n';
875 int chk = 0;
876 int fmt = 0;
877
878 cmd = *argv;
879
880 while (--argc > 0 && **++argv == '-') {
881 char *arg = *argv;
882 while (*++arg) {
883 switch (*arg) {
884 case 'b': /* raw binary format */
885 if (fmt++)
886 goto sep_err;
887 sep = '\0';
888 break;
889 case 'c': /* external checksum format */
890 if (fmt++)
891 goto sep_err;
892 sep = '\0';
893 chk = 1;
894 break;
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100895 case 's': /* size given */
896 if (--argc <= 0)
897 return cmd_usage(cmdtp);
898 size = simple_strtoul(*++argv, NULL, 16);
899 goto NXTARG;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200900 case 't': /* text format */
901 if (fmt++)
902 goto sep_err;
903 sep = '\n';
904 break;
905 default:
Simon Glass4c12eeb2011-12-10 08:44:01 +0000906 return CMD_RET_USAGE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200907 }
908 }
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100909NXTARG: ;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200910 }
911
Macpaul Linf3c615b2011-04-26 16:16:45 +0000912 if (argc < 1)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000913 return CMD_RET_USAGE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200914
Simon Glassfd37dac2013-10-25 23:01:31 -0600915 addr = simple_strtoul(argv[0], NULL, 16);
916 ptr = map_sysmem(addr, size);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200917
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100918 if (size)
Simon Glassfd37dac2013-10-25 23:01:31 -0600919 memset(ptr, '\0', size);
Wolfgang Denk37f2fe72011-11-06 22:49:44 +0100920
921 argc--;
922 argv++;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200923
924 if (sep) { /* export as text file */
Wolfgang Denkea009d42013-03-23 23:50:28 +0000925 len = hexport_r(&env_htab, sep,
926 H_MATCH_KEY | H_MATCH_IDENT,
Simon Glassfd37dac2013-10-25 23:01:31 -0600927 &ptr, size, argc, argv);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200928 if (len < 0) {
Igor Grinbergd09b1782011-11-07 01:13:59 +0000929 error("Cannot export environment: errno = %d\n", errno);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200930 return 1;
931 }
Andreas Bießmann8c3aff52011-02-09 15:10:29 +0100932 sprintf(buf, "%zX", (size_t)len);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200933 setenv("filesize", buf);
934
935 return 0;
936 }
937
Simon Glassfd37dac2013-10-25 23:01:31 -0600938 envp = (env_t *)ptr;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200939
940 if (chk) /* export as checksum protected block */
941 res = (char *)envp->data;
942 else /* export as raw binary data */
Simon Glassfd37dac2013-10-25 23:01:31 -0600943 res = ptr;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200944
Wolfgang Denkea009d42013-03-23 23:50:28 +0000945 len = hexport_r(&env_htab, '\0',
946 H_MATCH_KEY | H_MATCH_IDENT,
947 &res, ENV_SIZE, argc, argv);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200948 if (len < 0) {
Igor Grinbergd09b1782011-11-07 01:13:59 +0000949 error("Cannot export environment: errno = %d\n", errno);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200950 return 1;
951 }
952
953 if (chk) {
Igor Grinbergd09b1782011-11-07 01:13:59 +0000954 envp->crc = crc32(0, envp->data, ENV_SIZE);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200955#ifdef CONFIG_ENV_ADDR_REDUND
956 envp->flags = ACTIVE_FLAG;
957#endif
958 }
Simon Glass41ef3722013-02-24 17:33:22 +0000959 setenv_hex("filesize", len + offsetof(env_t, data));
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200960
961 return 0;
962
963sep_err:
Igor Grinbergd09b1782011-11-07 01:13:59 +0000964 printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n", cmd);
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200965 return 1;
966}
Mike Frysinger0c79cda2010-12-26 23:09:45 -0500967#endif
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200968
Mike Frysinger0c79cda2010-12-26 23:09:45 -0500969#ifdef CONFIG_CMD_IMPORTENV
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200970/*
Alexander Hollerecd14462014-07-14 17:49:55 +0200971 * env import [-d] [-t [-r] | -b | -c] addr [size]
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200972 * -d: delete existing environment before importing;
973 * otherwise overwrite / append to existion definitions
974 * -t: assume text format; either "size" must be given or the
975 * text data must be '\0' terminated
Alexander Hollerecd14462014-07-14 17:49:55 +0200976 * -r: handle CRLF like LF, that means exported variables with
977 * a content which ends with \r won't get imported. Used
978 * to import text files created with editors which are using CRLF
979 * for line endings. Only effective in addition to -t.
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200980 * -b: assume binary format ('\0' separated, "\0\0" terminated)
981 * -c: assume checksum protected environment format
982 * addr: memory address to read from
983 * size: length of input data; if missing, proper '\0'
984 * termination is mandatory
985 */
Igor Grinbergd09b1782011-11-07 01:13:59 +0000986static int do_env_import(cmd_tbl_t *cmdtp, int flag,
987 int argc, char * const argv[])
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200988{
Simon Glassfd37dac2013-10-25 23:01:31 -0600989 ulong addr;
990 char *cmd, *ptr;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200991 char sep = '\n';
992 int chk = 0;
993 int fmt = 0;
994 int del = 0;
Alexander Hollerecd14462014-07-14 17:49:55 +0200995 int crlf_is_lf = 0;
Wolfgang Denkea882ba2010-06-20 23:33:59 +0200996 size_t size;
997
998 cmd = *argv;
999
1000 while (--argc > 0 && **++argv == '-') {
1001 char *arg = *argv;
1002 while (*++arg) {
1003 switch (*arg) {
1004 case 'b': /* raw binary format */
1005 if (fmt++)
1006 goto sep_err;
1007 sep = '\0';
1008 break;
1009 case 'c': /* external checksum format */
1010 if (fmt++)
1011 goto sep_err;
1012 sep = '\0';
1013 chk = 1;
1014 break;
1015 case 't': /* text format */
1016 if (fmt++)
1017 goto sep_err;
1018 sep = '\n';
1019 break;
Alexander Hollerecd14462014-07-14 17:49:55 +02001020 case 'r': /* handle CRLF like LF */
1021 crlf_is_lf = 1;
1022 break;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001023 case 'd':
1024 del = 1;
1025 break;
1026 default:
Simon Glass4c12eeb2011-12-10 08:44:01 +00001027 return CMD_RET_USAGE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001028 }
1029 }
1030 }
1031
Macpaul Linf3c615b2011-04-26 16:16:45 +00001032 if (argc < 1)
Simon Glass4c12eeb2011-12-10 08:44:01 +00001033 return CMD_RET_USAGE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001034
1035 if (!fmt)
1036 printf("## Warning: defaulting to text format\n");
1037
Alexander Hollerecd14462014-07-14 17:49:55 +02001038 if (sep != '\n' && crlf_is_lf )
1039 crlf_is_lf = 0;
1040
Simon Glassfd37dac2013-10-25 23:01:31 -06001041 addr = simple_strtoul(argv[0], NULL, 16);
1042 ptr = map_sysmem(addr, 0);
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001043
1044 if (argc == 2) {
1045 size = simple_strtoul(argv[1], NULL, 16);
Tom Rini3775dcd2014-03-04 15:52:35 -05001046 } else if (argc == 1 && chk) {
1047 puts("## Error: external checksum format must pass size\n");
1048 return CMD_RET_FAILURE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001049 } else {
Simon Glassfd37dac2013-10-25 23:01:31 -06001050 char *s = ptr;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001051
1052 size = 0;
1053
1054 while (size < MAX_ENV_SIZE) {
1055 if ((*s == sep) && (*(s+1) == '\0'))
1056 break;
1057 ++s;
1058 ++size;
1059 }
1060 if (size == MAX_ENV_SIZE) {
1061 printf("## Warning: Input data exceeds %d bytes"
1062 " - truncated\n", MAX_ENV_SIZE);
1063 }
Horst Kronstorferd3f80c72011-12-16 23:33:10 +00001064 size += 2;
Simon Glass79afc882011-11-04 06:42:36 +00001065 printf("## Info: input data size = %zu = 0x%zX\n", size, size);
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001066 }
1067
1068 if (chk) {
1069 uint32_t crc;
Simon Glassfd37dac2013-10-25 23:01:31 -06001070 env_t *ep = (env_t *)ptr;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001071
1072 size -= offsetof(env_t, data);
1073 memcpy(&crc, &ep->crc, sizeof(crc));
1074
1075 if (crc32(0, ep->data, size) != crc) {
1076 puts("## Error: bad CRC, import failed\n");
1077 return 1;
1078 }
Simon Glassfd37dac2013-10-25 23:01:31 -06001079 ptr = (char *)ep->data;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001080 }
1081
Alexander Hollerecd14462014-07-14 17:49:55 +02001082 if (himport_r(&env_htab, ptr, size, sep, del ? 0 : H_NOCLEAR,
1083 crlf_is_lf, 0, NULL) == 0) {
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001084 error("Environment import failed: errno = %d\n", errno);
1085 return 1;
1086 }
1087 gd->flags |= GD_FLG_ENV_READY;
1088
1089 return 0;
1090
1091sep_err:
1092 printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n",
1093 cmd);
1094 return 1;
1095}
Mike Frysinger0c79cda2010-12-26 23:09:45 -05001096#endif
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001097
Andrew Ruder88733e22013-10-22 19:07:34 -05001098#if defined(CONFIG_CMD_ENV_EXISTS)
1099static int do_env_exists(cmd_tbl_t *cmdtp, int flag, int argc,
1100 char * const argv[])
1101{
1102 ENTRY e, *ep;
1103
1104 if (argc < 2)
1105 return CMD_RET_USAGE;
1106
1107 e.key = argv[1];
1108 e.data = NULL;
1109 hsearch_r(e, FIND, &ep, &env_htab, 0);
1110
1111 return (ep == NULL) ? 1 : 0;
1112}
1113#endif
1114
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001115/*
1116 * New command line interface: "env" command with subcommands
1117 */
1118static cmd_tbl_t cmd_env_sub[] = {
1119#if defined(CONFIG_CMD_ASKENV)
1120 U_BOOT_CMD_MKENT(ask, CONFIG_SYS_MAXARGS, 1, do_env_ask, "", ""),
1121#endif
1122 U_BOOT_CMD_MKENT(default, 1, 0, do_env_default, "", ""),
Joe Hershberger9d8d6612012-12-11 22:16:36 -06001123 U_BOOT_CMD_MKENT(delete, CONFIG_SYS_MAXARGS, 0, do_env_delete, "", ""),
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001124#if defined(CONFIG_CMD_EDITENV)
1125 U_BOOT_CMD_MKENT(edit, 2, 0, do_env_edit, "", ""),
1126#endif
Joe Hershberger5e2b3e02012-12-11 22:16:25 -06001127#if defined(CONFIG_CMD_ENV_CALLBACK)
1128 U_BOOT_CMD_MKENT(callbacks, 1, 0, do_env_callback, "", ""),
1129#endif
Joe Hershbergerfffad712012-12-11 22:16:33 -06001130#if defined(CONFIG_CMD_ENV_FLAGS)
1131 U_BOOT_CMD_MKENT(flags, 1, 0, do_env_flags, "", ""),
1132#endif
Mike Frysinger0c79cda2010-12-26 23:09:45 -05001133#if defined(CONFIG_CMD_EXPORTENV)
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001134 U_BOOT_CMD_MKENT(export, 4, 0, do_env_export, "", ""),
Mike Frysinger0c79cda2010-12-26 23:09:45 -05001135#endif
Kim Phillipsa000b792011-04-05 07:15:14 +00001136#if defined(CONFIG_CMD_GREPENV)
1137 U_BOOT_CMD_MKENT(grep, CONFIG_SYS_MAXARGS, 1, do_env_grep, "", ""),
1138#endif
Mike Frysinger0c79cda2010-12-26 23:09:45 -05001139#if defined(CONFIG_CMD_IMPORTENV)
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001140 U_BOOT_CMD_MKENT(import, 5, 0, do_env_import, "", ""),
Mike Frysinger0c79cda2010-12-26 23:09:45 -05001141#endif
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001142 U_BOOT_CMD_MKENT(print, CONFIG_SYS_MAXARGS, 1, do_env_print, "", ""),
1143#if defined(CONFIG_CMD_RUN)
1144 U_BOOT_CMD_MKENT(run, CONFIG_SYS_MAXARGS, 1, do_run, "", ""),
1145#endif
1146#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
1147 U_BOOT_CMD_MKENT(save, 1, 0, do_env_save, "", ""),
1148#endif
1149 U_BOOT_CMD_MKENT(set, CONFIG_SYS_MAXARGS, 0, do_env_set, "", ""),
Andrew Ruder88733e22013-10-22 19:07:34 -05001150#if defined(CONFIG_CMD_ENV_EXISTS)
1151 U_BOOT_CMD_MKENT(exists, 2, 0, do_env_exists, "", ""),
1152#endif
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001153};
1154
Wolfgang Denk2e5167c2010-10-28 20:00:11 +02001155#if defined(CONFIG_NEEDS_MANUAL_RELOC)
Heiko Schocher60f7da12010-10-05 14:17:00 +02001156void env_reloc(void)
1157{
1158 fixup_cmdtable(cmd_env_sub, ARRAY_SIZE(cmd_env_sub));
1159}
1160#endif
1161
Macpaul Linf3c615b2011-04-26 16:16:45 +00001162static int do_env(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001163{
1164 cmd_tbl_t *cp;
1165
Thomas Weber5904da02010-11-24 13:07:52 +01001166 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +00001167 return CMD_RET_USAGE;
Thomas Weber5904da02010-11-24 13:07:52 +01001168
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001169 /* drop initial "env" arg */
1170 argc--;
1171 argv++;
1172
1173 cp = find_cmd_tbl(argv[0], cmd_env_sub, ARRAY_SIZE(cmd_env_sub));
1174
1175 if (cp)
1176 return cp->cmd(cmdtp, flag, argc, argv);
1177
Simon Glass4c12eeb2011-12-10 08:44:01 +00001178 return CMD_RET_USAGE;
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001179}
1180
Kim Phillips088f1b12012-10-29 13:34:31 +00001181#ifdef CONFIG_SYS_LONGHELP
1182static char env_help_text[] =
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001183#if defined(CONFIG_CMD_ASKENV)
1184 "ask name [message] [size] - ask for environment variable\nenv "
1185#endif
Joe Hershberger5e2b3e02012-12-11 22:16:25 -06001186#if defined(CONFIG_CMD_ENV_CALLBACK)
1187 "callbacks - print callbacks and their associated variables\nenv "
1188#endif
Gerlando Falautob64b7c32012-08-24 00:11:41 +00001189 "default [-f] -a - [forcibly] reset default environment\n"
1190 "env default [-f] var [...] - [forcibly] reset variable(s) to their default values\n"
Joe Hershberger9d8d6612012-12-11 22:16:36 -06001191 "env delete [-f] var [...] - [forcibly] delete variable(s)\n"
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001192#if defined(CONFIG_CMD_EDITENV)
1193 "env edit name - edit environment variable\n"
1194#endif
Andrew Ruder88733e22013-10-22 19:07:34 -05001195#if defined(CONFIG_CMD_ENV_EXISTS)
1196 "env exists name - tests for existence of variable\n"
1197#endif
Benoît Thébaudeau4796bc42012-08-10 07:45:44 +00001198#if defined(CONFIG_CMD_EXPORTENV)
Wolfgang Denk37f2fe72011-11-06 22:49:44 +01001199 "env export [-t | -b | -c] [-s size] addr [var ...] - export environment\n"
Benoît Thébaudeau4796bc42012-08-10 07:45:44 +00001200#endif
Joe Hershbergerfffad712012-12-11 22:16:33 -06001201#if defined(CONFIG_CMD_ENV_FLAGS)
1202 "env flags - print variables that have non-default flags\n"
1203#endif
Kim Phillipsa000b792011-04-05 07:15:14 +00001204#if defined(CONFIG_CMD_GREPENV)
Wolfgang Denkbe29df62013-03-23 23:50:32 +00001205#ifdef CONFIG_REGEX
1206 "env grep [-e] [-n | -v | -b] string [...] - search environment\n"
1207#else
Wolfgang Denkd87244d2013-03-23 23:50:30 +00001208 "env grep [-n | -v | -b] string [...] - search environment\n"
Kim Phillipsa000b792011-04-05 07:15:14 +00001209#endif
Wolfgang Denkbe29df62013-03-23 23:50:32 +00001210#endif
Benoît Thébaudeau4796bc42012-08-10 07:45:44 +00001211#if defined(CONFIG_CMD_IMPORTENV)
Alexander Hollerecd14462014-07-14 17:49:55 +02001212 "env import [-d] [-t [-r] | -b | -c] addr [size] - import environment\n"
Benoît Thébaudeau4796bc42012-08-10 07:45:44 +00001213#endif
Joe Hershbergerbe112352012-12-11 22:16:23 -06001214 "env print [-a | name ...] - print environment\n"
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001215#if defined(CONFIG_CMD_RUN)
1216 "env run var [...] - run commands in an environment variable\n"
1217#endif
Horst Kronstorferd798a9b2011-12-10 02:25:19 +00001218#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001219 "env save - save environment\n"
Horst Kronstorferd798a9b2011-12-10 02:25:19 +00001220#endif
Kim Phillips088f1b12012-10-29 13:34:31 +00001221 "env set [-f] name [arg ...]\n";
1222#endif
1223
1224U_BOOT_CMD(
1225 env, CONFIG_SYS_MAXARGS, 1, do_env,
1226 "environment handling commands", env_help_text
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001227);
1228
1229/*
1230 * Old command line interface, kept for compatibility
1231 */
wdenk8bde7f72003-06-27 21:31:46 +00001232
Peter Tyser246c6922009-10-25 15:12:56 -05001233#if defined(CONFIG_CMD_EDITENV)
Mike Frysinger722b0612010-10-20 03:52:39 -04001234U_BOOT_CMD_COMPLETE(
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001235 editenv, 2, 0, do_env_edit,
Peter Tyser246c6922009-10-25 15:12:56 -05001236 "edit environment variable",
1237 "name\n"
Mike Frysinger722b0612010-10-20 03:52:39 -04001238 " - edit environment variable 'name'",
1239 var_complete
Peter Tyser246c6922009-10-25 15:12:56 -05001240);
1241#endif
1242
Mike Frysinger722b0612010-10-20 03:52:39 -04001243U_BOOT_CMD_COMPLETE(
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001244 printenv, CONFIG_SYS_MAXARGS, 1, do_env_print,
Peter Tyser2fb26042009-01-27 18:03:12 -06001245 "print environment variables",
Joe Hershbergerbe112352012-12-11 22:16:23 -06001246 "[-a]\n - print [all] values of all environment variables\n"
wdenk8bde7f72003-06-27 21:31:46 +00001247 "printenv name ...\n"
Mike Frysinger722b0612010-10-20 03:52:39 -04001248 " - print value of environment variable 'name'",
1249 var_complete
wdenk8bde7f72003-06-27 21:31:46 +00001250);
1251
Kim Phillipsa000b792011-04-05 07:15:14 +00001252#ifdef CONFIG_CMD_GREPENV
1253U_BOOT_CMD_COMPLETE(
1254 grepenv, CONFIG_SYS_MAXARGS, 0, do_env_grep,
1255 "search environment variables",
Wolfgang Denkbe29df62013-03-23 23:50:32 +00001256#ifdef CONFIG_REGEX
1257 "[-e] [-n | -v | -b] string ...\n"
1258#else
Wolfgang Denkd87244d2013-03-23 23:50:30 +00001259 "[-n | -v | -b] string ...\n"
Wolfgang Denkbe29df62013-03-23 23:50:32 +00001260#endif
Wolfgang Denkd87244d2013-03-23 23:50:30 +00001261 " - list environment name=value pairs matching 'string'\n"
Wolfgang Denkbe29df62013-03-23 23:50:32 +00001262#ifdef CONFIG_REGEX
1263 " \"-e\": enable regular expressions;\n"
1264#endif
Wolfgang Denkd87244d2013-03-23 23:50:30 +00001265 " \"-n\": search variable names; \"-v\": search values;\n"
1266 " \"-b\": search both names and values (default)",
Kim Phillipsa000b792011-04-05 07:15:14 +00001267 var_complete
1268);
1269#endif
1270
Mike Frysinger722b0612010-10-20 03:52:39 -04001271U_BOOT_CMD_COMPLETE(
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001272 setenv, CONFIG_SYS_MAXARGS, 0, do_env_set,
Peter Tyser2fb26042009-01-27 18:03:12 -06001273 "set environment variables",
Joe Hershberger24ab5a12012-12-11 22:16:35 -06001274 "[-f] name value ...\n"
1275 " - [forcibly] set environment variable 'name' to 'value ...'\n"
1276 "setenv [-f] name\n"
1277 " - [forcibly] delete environment variable 'name'",
Mike Frysinger722b0612010-10-20 03:52:39 -04001278 var_complete
wdenk8bde7f72003-06-27 21:31:46 +00001279);
1280
Jon Loeligerc76fe472007-07-08 18:02:23 -05001281#if defined(CONFIG_CMD_ASKENV)
wdenk8bde7f72003-06-27 21:31:46 +00001282
wdenk0d498392003-07-01 21:06:45 +00001283U_BOOT_CMD(
Wolfgang Denkea882ba2010-06-20 23:33:59 +02001284 askenv, CONFIG_SYS_MAXARGS, 1, do_env_ask,
Peter Tyser2fb26042009-01-27 18:03:12 -06001285 "get environment variables from stdin",
wdenk8bde7f72003-06-27 21:31:46 +00001286 "name [message] [size]\n"
Wolfgang Denk7d855912013-02-20 04:53:16 +00001287 " - get environment variable 'name' from stdin (max 'size' chars)"
wdenk8bde7f72003-06-27 21:31:46 +00001288);
Jon Loeliger90253172007-07-10 11:02:44 -05001289#endif
wdenk8bde7f72003-06-27 21:31:46 +00001290
Jon Loeligerc76fe472007-07-08 18:02:23 -05001291#if defined(CONFIG_CMD_RUN)
Mike Frysinger722b0612010-10-20 03:52:39 -04001292U_BOOT_CMD_COMPLETE(
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001293 run, CONFIG_SYS_MAXARGS, 1, do_run,
Peter Tyser2fb26042009-01-27 18:03:12 -06001294 "run commands in an environment variable",
wdenk8bde7f72003-06-27 21:31:46 +00001295 "var [...]\n"
Mike Frysinger722b0612010-10-20 03:52:39 -04001296 " - run the commands in the environment variable(s) 'var'",
1297 var_complete
wdenk8bde7f72003-06-27 21:31:46 +00001298);
Jon Loeliger90253172007-07-10 11:02:44 -05001299#endif
Ilya Yanok7ac2fe22012-09-18 00:22:50 +00001300#endif /* CONFIG_SPL_BUILD */