/*
- * (C) Copyright 2000-2010
+ * (C) Copyright 2000-2013
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
*
* Copyright 2011 Freescale Semiconductor, Inc.
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
*/
#include <common.h>
+#include <cli.h>
#include <command.h>
#include <environment.h>
#include <search.h>
#include <errno.h>
#include <malloc.h>
+#include <mapmem.h>
#include <watchdog.h>
-#include <serial.h>
#include <linux/stddef.h>
#include <asm/byteorder.h>
-#if defined(CONFIG_CMD_NET)
-#include <net.h>
-#endif
+#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
#if !defined(CONFIG_ENV_IS_IN_EEPROM) && \
!defined(CONFIG_ENV_IS_IN_FLASH) && \
!defined(CONFIG_ENV_IS_IN_DATAFLASH) && \
- !defined(CONFIG_ENV_IS_IN_MG_DISK) && \
!defined(CONFIG_ENV_IS_IN_MMC) && \
+ !defined(CONFIG_ENV_IS_IN_FAT) && \
!defined(CONFIG_ENV_IS_IN_NAND) && \
!defined(CONFIG_ENV_IS_IN_NVRAM) && \
!defined(CONFIG_ENV_IS_IN_ONENAND) && \
!defined(CONFIG_ENV_IS_IN_SPI_FLASH) && \
+ !defined(CONFIG_ENV_IS_IN_REMOTE) && \
+ !defined(CONFIG_ENV_IS_IN_UBI) && \
!defined(CONFIG_ENV_IS_NOWHERE)
# error Define one of CONFIG_ENV_IS_IN_{EEPROM|FLASH|DATAFLASH|ONENAND|\
-SPI_FLASH|MG_DISK|NVRAM|MMC} or CONFIG_ENV_IS_NOWHERE
+SPI_FLASH|NVRAM|MMC|FAT|REMOTE|UBI} or CONFIG_ENV_IS_NOWHERE
#endif
-#define XMK_STR(x) #x
-#define MK_STR(x) XMK_STR(x)
-
/*
* Maximum expected input data size for import command
*/
#define MAX_ENV_SIZE (1 << 20) /* 1 MiB */
-ulong load_addr = CONFIG_SYS_LOAD_ADDR; /* Default Load Address */
-
-/*
- * Table with supported baudrates (defined in config_xyz.h)
- */
-static const unsigned long baudrate_table[] = CONFIG_SYS_BAUDRATE_TABLE;
-#define N_BAUDRATES (sizeof(baudrate_table) / sizeof(baudrate_table[0]))
-
/*
* This variable is incremented on each do_env_set(), so it can
* be used via get_env_id() as an indication, if the environment
return env_id;
}
+#ifndef CONFIG_SPL_BUILD
/*
* Command interface: print one or all environment variables
*
* Returns 0 in case of error, or length of printed string
*/
-static int env_print(char *name)
+static int env_print(char *name, int flag)
{
char *res = NULL;
- size_t len;
+ ssize_t len;
if (name) { /* print a single name */
ENTRY e, *ep;
e.key = name;
e.data = NULL;
- hsearch_r(e, FIND, &ep, &env_htab);
+ hsearch_r(e, FIND, &ep, &env_htab, flag);
if (ep == NULL)
return 0;
len = printf("%s=%s\n", ep->key, ep->data);
}
/* print whole list */
- len = hexport_r(&env_htab, '\n', &res, 0);
+ len = hexport_r(&env_htab, '\n', flag, &res, 0, 0, NULL);
if (len > 0) {
puts(res);
}
/* should never happen */
+ printf("## Error: cannot export environment\n");
return 0;
}
-int do_env_print (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_env_print(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
{
int i;
int rcode = 0;
+ int env_flag = H_HIDE_DOT;
+
+ if (argc > 1 && argv[1][0] == '-' && argv[1][1] == 'a') {
+ argc--;
+ argv++;
+ env_flag &= ~H_HIDE_DOT;
+ }
if (argc == 1) {
/* print all env vars */
- rcode = env_print(NULL);
+ rcode = env_print(NULL, env_flag);
if (!rcode)
return 1;
printf("\nEnvironment size: %d/%ld bytes\n",
}
/* print selected env vars */
+ env_flag &= ~H_HIDE_DOT;
for (i = 1; i < argc; ++i) {
- int rc = env_print(argv[i]);
+ int rc = env_print(argv[i], env_flag);
if (!rc) {
printf("## Error: \"%s\" not defined\n", argv[i]);
++rcode;
}
#ifdef CONFIG_CMD_GREPENV
-static int do_env_grep (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_env_grep(cmd_tbl_t *cmdtp, int flag,
+ int argc, char * const argv[])
{
- ENTRY *match;
- unsigned char matched[env_htab.size / 8];
- int rcode = 1, arg = 1, idx;
+ char *res = NULL;
+ int len, grep_how, grep_what;
if (argc < 2)
- return cmd_usage(cmdtp);
-
- memset(matched, 0, env_htab.size / 8);
-
- while (arg <= argc) {
- idx = 0;
- while ((idx = hstrstr_r(argv[arg], idx, &match, &env_htab))) {
- if (!(matched[idx / 8] & (1 << (idx & 7)))) {
- puts(match->key);
- puts("=");
- puts(match->data);
- puts("\n");
+ return CMD_RET_USAGE;
+
+ grep_how = H_MATCH_SUBSTR; /* default: substring search */
+ grep_what = H_MATCH_BOTH; /* default: grep names and values */
+
+ while (--argc > 0 && **++argv == '-') {
+ char *arg = *argv;
+ while (*++arg) {
+ switch (*arg) {
+#ifdef CONFIG_REGEX
+ case 'e': /* use regex matching */
+ grep_how = H_MATCH_REGEX;
+ break;
+#endif
+ case 'n': /* grep for name */
+ grep_what = H_MATCH_KEY;
+ break;
+ case 'v': /* grep for value */
+ grep_what = H_MATCH_DATA;
+ break;
+ case 'b': /* grep for both */
+ grep_what = H_MATCH_BOTH;
+ break;
+ case '-':
+ goto DONE;
+ default:
+ return CMD_RET_USAGE;
}
- matched[idx / 8] |= 1 << (idx & 7);
- rcode = 0;
}
- arg++;
}
- return rcode;
+DONE:
+ len = hexport_r(&env_htab, '\n',
+ flag | grep_what | grep_how,
+ &res, 0, argc, argv);
+
+ if (len > 0) {
+ puts(res);
+ free(res);
+ }
+
+ if (len < 2)
+ return 1;
+
+ return 0;
}
#endif
+#endif /* CONFIG_SPL_BUILD */
/*
* Set a new environment variable,
* or replace or delete an existing one.
*/
-
-int _do_env_set (int flag, int argc, char * const argv[])
+static int _do_env_set(int flag, int argc, char * const argv[], int env_flag)
{
- bd_t *bd = gd->bd;
int i, len;
- int console = -1;
char *name, *value, *s;
ENTRY e, *ep;
+ debug("Initial value for argc=%d\n", argc);
+ while (argc > 1 && **(argv + 1) == '-') {
+ char *arg = *++argv;
+
+ --argc;
+ while (*++arg) {
+ switch (*arg) {
+ case 'f': /* force */
+ env_flag |= H_FORCE;
+ break;
+ default:
+ return CMD_RET_USAGE;
+ }
+ }
+ }
+ debug("Final value for argc=%d\n", argc);
name = argv[1];
+ value = argv[2];
if (strchr(name, '=')) {
- printf("## Error: illegal character '=' in variable name \"%s\"\n", name);
+ printf("## Error: illegal character '='"
+ "in variable name \"%s\"\n", name);
return 1;
}
env_id++;
- /*
- * search if variable with this name already exists
- */
- e.key = name;
- e.data = NULL;
- hsearch_r(e, FIND, &ep, &env_htab);
-
- /* Check for console redirection */
- if (strcmp(name, "stdin") == 0)
- console = stdin;
- else if (strcmp(name, "stdout") == 0)
- console = stdout;
- else if (strcmp(name, "stderr") == 0)
- console = stderr;
-
- if (console != -1) {
- if (argc < 3) { /* Cannot delete it! */
- printf("Can't delete \"%s\"\n", name);
- return 1;
- }
-
-#ifdef CONFIG_CONSOLE_MUX
- i = iomux_doenv(console, argv[2]);
- if (i)
- return i;
-#else
- /* Try assigning specified device */
- if (console_assign(console, argv[2]) < 0)
- return 1;
-
-#ifdef CONFIG_SERIAL_MULTI
- if (serial_assign(argv[2]) < 0)
- return 1;
-#endif
-#endif /* CONFIG_CONSOLE_MUX */
- }
-
- /*
- * Some variables like "ethaddr" and "serial#" can be set only
- * once and cannot be deleted; also, "ver" is readonly.
- */
- if (ep) { /* variable exists */
-#ifndef CONFIG_ENV_OVERWRITE
- if ((strcmp(name, "serial#") == 0) ||
- ((strcmp(name, "ethaddr") == 0)
-#if defined(CONFIG_OVERWRITE_ETHADDR_ONCE) && defined(CONFIG_ETHADDR)
- && (strcmp(ep->data, MK_STR(CONFIG_ETHADDR)) != 0)
-#endif /* CONFIG_OVERWRITE_ETHADDR_ONCE && CONFIG_ETHADDR */
- ) ) {
- printf("Can't overwrite \"%s\"\n", name);
- return 1;
- }
-#endif
- /*
- * Switch to new baudrate if new baudrate is supported
- */
- if (strcmp(name, "baudrate") == 0) {
- int baudrate = simple_strtoul(argv[2], NULL, 10);
- int i;
- for (i = 0; i < N_BAUDRATES; ++i) {
- if (baudrate == baudrate_table[i])
- break;
- }
- if (i == N_BAUDRATES) {
- printf("## Baudrate %d bps not supported\n",
- baudrate);
- return 1;
- }
- printf ("## Switch baudrate to %d bps and press ENTER ...\n",
- baudrate);
- udelay(50000);
- gd->baudrate = baudrate;
-#if defined(CONFIG_PPC) || defined(CONFIG_MCF52x2)
- gd->bd->bi_baudrate = baudrate;
-#endif
-
- serial_setbrg();
- udelay(50000);
- for (;;) {
- if (getc() == '\r')
- break;
- }
- }
- }
/* Delete only ? */
- if ((argc < 3) || argv[2] == NULL) {
- int rc = hdelete_r(name, &env_htab);
+ if (argc < 3 || argv[2] == NULL) {
+ int rc = hdelete_r(name, &env_htab, env_flag);
return !rc;
}
while ((*s++ = *v++) != '\0')
;
- *(s-1) = ' ';
+ *(s - 1) = ' ';
}
if (s != value)
*--s = '\0';
- e.key = name;
- e.data = value;
- hsearch_r(e, ENTER, &ep, &env_htab);
+ e.key = name;
+ e.data = value;
+ hsearch_r(e, ENTER, &ep, &env_htab, env_flag);
free(value);
if (!ep) {
printf("## Error inserting \"%s\" variable, errno=%d\n",
return 1;
}
- /*
- * Some variables should be updated when the corresponding
- * entry in the environment is changed
- */
-
- if (strcmp(name, "ipaddr") == 0) {
- char *s = argv[2]; /* always use only one arg */
- char *e;
- unsigned long addr;
- bd->bi_ip_addr = 0;
- for (addr = 0, i = 0; i < 4; ++i) {
- ulong val = s ? simple_strtoul(s, &e, 10) : 0;
- addr <<= 8;
- addr |= (val & 0xFF);
- if (s) s = (*e) ? e+1 : e;
- }
- bd->bi_ip_addr = htonl(addr);
- return 0;
- } else if (strcmp(argv[1], "loadaddr") == 0) {
- load_addr = simple_strtoul(argv[2], NULL, 16);
- return 0;
- }
-#if defined(CONFIG_CMD_NET)
- else if (strcmp(argv[1], "bootfile") == 0) {
- copy_filename(BootFile, argv[2], sizeof(BootFile));
- return 0;
- }
-#endif
return 0;
}
{
const char * const argv[4] = { "setenv", varname, varvalue, NULL };
- if ((varvalue == NULL) || (varvalue[0] == '\0'))
- return _do_env_set(0, 2, (char * const *)argv);
+ /* before import into hashtable */
+ if (!(gd->flags & GD_FLG_ENV_READY))
+ return 1;
+
+ if (varvalue == NULL || varvalue[0] == '\0')
+ return _do_env_set(0, 2, (char * const *)argv, H_PROGRAMMATIC);
else
- return _do_env_set(0, 3, (char * const *)argv);
+ return _do_env_set(0, 3, (char * const *)argv, H_PROGRAMMATIC);
}
-int do_env_set(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+/**
+ * Set an environment variable to an integer value
+ *
+ * @param varname Environment variable to set
+ * @param value Value to set it to
+ * @return 0 if ok, 1 on error
+ */
+int setenv_ulong(const char *varname, ulong value)
+{
+ /* TODO: this should be unsigned */
+ char *str = simple_itoa(value);
+
+ return setenv(varname, str);
+}
+
+/**
+ * Set an environment variable to an value in hex
+ *
+ * @param varname Environment variable to set
+ * @param value Value to set it to
+ * @return 0 if ok, 1 on error
+ */
+int setenv_hex(const char *varname, ulong value)
+{
+ char str[17];
+
+ sprintf(str, "%lx", value);
+ return setenv(varname, str);
+}
+
+ulong getenv_hex(const char *varname, ulong default_val)
+{
+ const char *s;
+ ulong value;
+ char *endp;
+
+ s = getenv(varname);
+ if (s)
+ value = simple_strtoul(s, &endp, 16);
+ if (!s || endp == s)
+ return default_val;
+
+ return value;
+}
+
+#ifndef CONFIG_SPL_BUILD
+static int do_env_set(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
if (argc < 2)
- return cmd_usage(cmdtp);
+ return CMD_RET_USAGE;
- return _do_env_set(flag, argc, argv);
+ return _do_env_set(flag, argc, argv, H_INTERACTIVE);
}
/*
#if defined(CONFIG_CMD_ASKENV)
int do_env_ask(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
- extern char console_buffer[CONFIG_SYS_CBSIZE];
char message[CONFIG_SYS_CBSIZE];
- int size = CONFIG_SYS_CBSIZE - 1;
- int i, len, pos;
+ int i, len, pos, size;
char *local_args[4];
+ char *endptr;
local_args[0] = argv[0];
local_args[1] = argv[1];
local_args[2] = NULL;
local_args[3] = NULL;
- /* Check the syntax */
- switch (argc) {
- case 1:
- return cmd_usage(cmdtp);
-
- case 2: /* env_ask envname */
- sprintf(message, "Please enter '%s':", argv[1]);
- break;
+ /*
+ * Check the syntax:
+ *
+ * env_ask envname [message1 ...] [size]
+ */
+ if (argc == 1)
+ return CMD_RET_USAGE;
- case 3: /* env_ask envname size */
- sprintf(message, "Please enter '%s':", argv[1]);
- size = simple_strtoul(argv[2], NULL, 10);
- break;
+ /*
+ * We test the last argument if it can be converted
+ * into a decimal number. If yes, we assume it's
+ * the size. Otherwise we echo it as part of the
+ * message.
+ */
+ i = simple_strtoul(argv[argc - 1], &endptr, 10);
+ if (*endptr != '\0') { /* no size */
+ size = CONFIG_SYS_CBSIZE - 1;
+ } else { /* size given */
+ size = i;
+ --argc;
+ }
- default: /* env_ask envname message1 ... messagen size */
- for (i = 2, pos = 0; i < argc - 1; i++) {
+ if (argc <= 2) {
+ sprintf(message, "Please enter '%s': ", argv[1]);
+ } else {
+ /* env_ask envname message1 ... messagen [size] */
+ for (i = 2, pos = 0; i < argc; i++) {
if (pos)
message[pos++] = ' ';
- strcpy(message+pos, argv[i]);
+ strcpy(message + pos, argv[i]);
pos += strlen(argv[i]);
}
+ message[pos++] = ' ';
message[pos] = '\0';
- size = simple_strtoul(argv[argc - 1], NULL, 10);
- break;
}
if (size >= CONFIG_SYS_CBSIZE)
return 1;
/* prompt for input */
- len = readline(message);
+ len = cli_readline(message);
if (size < len)
console_buffer[size] = '\0';
}
/* Continue calling setenv code */
- return _do_env_set(flag, len, local_args);
+ return _do_env_set(flag, len, local_args, H_INTERACTIVE);
+}
+#endif
+
+#if defined(CONFIG_CMD_ENV_CALLBACK)
+static int print_static_binding(const char *var_name, const char *callback_name,
+ void *priv)
+{
+ printf("\t%-20s %-20s\n", var_name, callback_name);
+
+ return 0;
+}
+
+static int print_active_callback(ENTRY *entry)
+{
+ struct env_clbk_tbl *clbkp;
+ int i;
+ int num_callbacks;
+
+ if (entry->callback == NULL)
+ return 0;
+
+ /* look up the callback in the linker-list */
+ num_callbacks = ll_entry_count(struct env_clbk_tbl, env_clbk);
+ for (i = 0, clbkp = ll_entry_start(struct env_clbk_tbl, env_clbk);
+ i < num_callbacks;
+ i++, clbkp++) {
+#if defined(CONFIG_NEEDS_MANUAL_RELOC)
+ if (entry->callback == clbkp->callback + gd->reloc_off)
+#else
+ if (entry->callback == clbkp->callback)
+#endif
+ break;
+ }
+
+ if (i == num_callbacks)
+ /* this should probably never happen, but just in case... */
+ printf("\t%-20s %p\n", entry->key, entry->callback);
+ else
+ printf("\t%-20s %-20s\n", entry->key, clbkp->name);
+
+ return 0;
+}
+
+/*
+ * Print the callbacks available and what they are bound to
+ */
+int do_env_callback(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct env_clbk_tbl *clbkp;
+ int i;
+ int num_callbacks;
+
+ /* Print the available callbacks */
+ puts("Available callbacks:\n");
+ puts("\tCallback Name\n");
+ puts("\t-------------\n");
+ num_callbacks = ll_entry_count(struct env_clbk_tbl, env_clbk);
+ for (i = 0, clbkp = ll_entry_start(struct env_clbk_tbl, env_clbk);
+ i < num_callbacks;
+ i++, clbkp++)
+ printf("\t%s\n", clbkp->name);
+ puts("\n");
+
+ /* Print the static bindings that may exist */
+ puts("Static callback bindings:\n");
+ printf("\t%-20s %-20s\n", "Variable Name", "Callback Name");
+ printf("\t%-20s %-20s\n", "-------------", "-------------");
+ env_attr_walk(ENV_CALLBACK_LIST_STATIC, print_static_binding, NULL);
+ puts("\n");
+
+ /* walk through each variable and print the callback if it has one */
+ puts("Active callback bindings:\n");
+ printf("\t%-20s %-20s\n", "Variable Name", "Callback Name");
+ printf("\t%-20s %-20s\n", "-------------", "-------------");
+ hwalk_r(&env_htab, print_active_callback);
+ return 0;
+}
+#endif
+
+#if defined(CONFIG_CMD_ENV_FLAGS)
+static int print_static_flags(const char *var_name, const char *flags,
+ void *priv)
+{
+ enum env_flags_vartype type = env_flags_parse_vartype(flags);
+ enum env_flags_varaccess access = env_flags_parse_varaccess(flags);
+
+ printf("\t%-20s %-20s %-20s\n", var_name,
+ env_flags_get_vartype_name(type),
+ env_flags_get_varaccess_name(access));
+
+ return 0;
+}
+
+static int print_active_flags(ENTRY *entry)
+{
+ enum env_flags_vartype type;
+ enum env_flags_varaccess access;
+
+ if (entry->flags == 0)
+ return 0;
+
+ type = (enum env_flags_vartype)
+ (entry->flags & ENV_FLAGS_VARTYPE_BIN_MASK);
+ access = env_flags_parse_varaccess_from_binflags(entry->flags);
+ printf("\t%-20s %-20s %-20s\n", entry->key,
+ env_flags_get_vartype_name(type),
+ env_flags_get_varaccess_name(access));
+
+ return 0;
+}
+
+/*
+ * Print the flags available and what variables have flags
+ */
+int do_env_flags(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ /* Print the available variable types */
+ printf("Available variable type flags (position %d):\n",
+ ENV_FLAGS_VARTYPE_LOC);
+ puts("\tFlag\tVariable Type Name\n");
+ puts("\t----\t------------------\n");
+ env_flags_print_vartypes();
+ puts("\n");
+
+ /* Print the available variable access types */
+ printf("Available variable access flags (position %d):\n",
+ ENV_FLAGS_VARACCESS_LOC);
+ puts("\tFlag\tVariable Access Name\n");
+ puts("\t----\t--------------------\n");
+ env_flags_print_varaccess();
+ puts("\n");
+
+ /* Print the static flags that may exist */
+ puts("Static flags:\n");
+ printf("\t%-20s %-20s %-20s\n", "Variable Name", "Variable Type",
+ "Variable Access");
+ printf("\t%-20s %-20s %-20s\n", "-------------", "-------------",
+ "---------------");
+ env_attr_walk(ENV_FLAGS_LIST_STATIC, print_static_flags, NULL);
+ puts("\n");
+
+ /* walk through each variable and print the flags if non-default */
+ puts("Active flags:\n");
+ printf("\t%-20s %-20s %-20s\n", "Variable Name", "Variable Type",
+ "Variable Access");
+ printf("\t%-20s %-20s %-20s\n", "-------------", "-------------",
+ "---------------");
+ hwalk_r(&env_htab, print_active_flags);
+ return 0;
}
#endif
* Interactively edit an environment variable
*/
#if defined(CONFIG_CMD_EDITENV)
-int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
{
char buffer[CONFIG_SYS_CBSIZE];
char *init_val;
- int len;
if (argc < 2)
- return cmd_usage(cmdtp);
+ return CMD_RET_USAGE;
+
+ /* before import into hashtable */
+ if (!(gd->flags & GD_FLG_ENV_READY))
+ return 1;
/* Set read buffer to initial value or empty sting */
init_val = getenv(argv[1]);
if (init_val)
- len = sprintf(buffer, "%s", init_val);
+ sprintf(buffer, "%s", init_val);
else
buffer[0] = '\0';
- readline_into_buffer("edit: ", buffer);
+ if (cli_readline_into_buffer("edit: ", buffer, 0) < 0)
+ return 1;
+
+ if (buffer[0] == '\0') {
+ const char * const _argv[3] = { "setenv", argv[1], NULL };
+
+ return _do_env_set(0, 2, (char * const *)_argv, H_INTERACTIVE);
+ } else {
+ const char * const _argv[4] = { "setenv", argv[1], buffer,
+ NULL };
- return setenv(argv[1], buffer);
+ return _do_env_set(0, 3, (char * const *)_argv, H_INTERACTIVE);
+ }
}
#endif /* CONFIG_CMD_EDITENV */
+#endif /* CONFIG_SPL_BUILD */
/*
* Look up variable from environment,
*/
char *getenv(const char *name)
{
- if (gd->flags & GD_FLG_ENV_READY) { /* after import into hashtable */
+ if (gd->flags & GD_FLG_ENV_READY) { /* after import into hashtable */
ENTRY e, *ep;
WATCHDOG_RESET();
- e.key = name;
- e.data = NULL;
- hsearch_r(e, FIND, &ep, &env_htab);
+ e.key = name;
+ e.data = NULL;
+ hsearch_r(e, FIND, &ep, &env_htab, 0);
return ep ? ep->data : NULL;
}
/* restricted capabilities before import */
-
if (getenv_f(name, (char *)(gd->env_buf), sizeof(gd->env_buf)) > 0)
return (char *)(gd->env_buf);
{
int i, nxt;
- for (i = 0; env_get_char(i) != '\0'; i = nxt+1) {
+ for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
int val, n;
for (nxt = i; env_get_char(nxt) != '\0'; ++nxt) {
/* found; copy out */
for (n = 0; n < len; ++n, ++buf) {
- if ((*buf = env_get_char(val++)) == '\0')
+ *buf = env_get_char(val++);
+ if (*buf == '\0')
return n;
}
return n;
}
+
return -1;
}
-#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
-
-int do_env_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+/**
+ * Decode the integer value of an environment variable and return it.
+ *
+ * @param name Name of environemnt variable
+ * @param base Number base to use (normally 10, or 16 for hex)
+ * @param default_val Default value to return if the variable is not
+ * found
+ * @return the decoded value, or default_val if not found
+ */
+ulong getenv_ulong(const char *name, int base, ulong default_val)
{
- extern char *env_name_spec;
+ /*
+ * We can use getenv() here, even before relocation, since the
+ * environment variable value is an integer and thus short.
+ */
+ const char *str = getenv(name);
+
+ return str ? simple_strtoul(str, NULL, base) : default_val;
+}
+#ifndef CONFIG_SPL_BUILD
+#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
+static int do_env_save(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
printf("Saving Environment to %s...\n", env_name_spec);
return saveenv() ? 1 : 0;
"save environment variables to persistent storage",
""
);
-
#endif
+#endif /* CONFIG_SPL_BUILD */
/*
*
* s1 is either a simple 'name', or a 'name=value' pair.
* i2 is the environment index for a 'name2=value2' pair.
- * If the names match, return the index for the value2, else NULL.
+ * If the names match, return the index for the value2, else -1.
*/
-
int envmatch(uchar *s1, int i2)
{
+ if (s1 == NULL)
+ return -1;
+
while (*s1 == env_get_char(i2++))
if (*s1++ == '=')
return i2;
+
if (*s1 == '\0' && env_get_char(i2-1) == '=')
return i2;
+
return -1;
}
-static int do_env_default(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+#ifndef CONFIG_SPL_BUILD
+static int do_env_default(cmd_tbl_t *cmdtp, int __flag,
+ int argc, char * const argv[])
{
- if ((argc != 2) || (strcmp(argv[1], "-f") != 0))
- return cmd_usage(cmdtp);
+ int all = 0, flag = 0;
- set_default_env("## Resetting to default environment\n");
- return 0;
+ debug("Initial value for argc=%d\n", argc);
+ while (--argc > 0 && **++argv == '-') {
+ char *arg = *argv;
+
+ while (*++arg) {
+ switch (*arg) {
+ case 'a': /* default all */
+ all = 1;
+ break;
+ case 'f': /* force */
+ flag |= H_FORCE;
+ break;
+ default:
+ return cmd_usage(cmdtp);
+ }
+ }
+ }
+ debug("Final value for argc=%d\n", argc);
+ if (all && (argc == 0)) {
+ /* Reset the whole environment */
+ set_default_env("## Resetting to default environment\n");
+ return 0;
+ }
+ if (!all && (argc > 0)) {
+ /* Reset individual variables */
+ set_default_vars(argc, argv);
+ return 0;
+ }
+
+ return cmd_usage(cmdtp);
}
-static int do_env_delete(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_env_delete(cmd_tbl_t *cmdtp, int flag,
+ int argc, char * const argv[])
{
- printf("Not implemented yet\n");
- return 0;
+ int env_flag = H_INTERACTIVE;
+ int ret = 0;
+
+ debug("Initial value for argc=%d\n", argc);
+ while (argc > 1 && **(argv + 1) == '-') {
+ char *arg = *++argv;
+
+ --argc;
+ while (*++arg) {
+ switch (*arg) {
+ case 'f': /* force */
+ env_flag |= H_FORCE;
+ break;
+ default:
+ return CMD_RET_USAGE;
+ }
+ }
+ }
+ debug("Final value for argc=%d\n", argc);
+
+ env_id++;
+
+ while (--argc > 0) {
+ char *name = *++argv;
+
+ if (!hdelete_r(name, &env_htab, env_flag))
+ ret = 1;
+ }
+
+ return ret;
}
#ifdef CONFIG_CMD_EXPORTENV
/*
- * env export [-t | -b | -c] addr [size]
+ * env export [-t | -b | -c] [-s size] addr [var ...]
* -t: export as text format; if size is given, data will be
* padded with '\0' bytes; if not, one terminating '\0'
* will be added (which is included in the "filesize"
* '\0', list end marked by double "\0\0")
* -c: export as checksum protected environment format as
* used for example by "saveenv" command
+ * -s size:
+ * size of output buffer
* addr: memory address where environment gets stored
- * size: size of output buffer
+ * var... List of variable names that get included into the
+ * export. Without arguments, the whole environment gets
+ * exported.
*
* With "-c" and size is NOT given, then the export command will
* format the data as currently used for the persistent storage,
*
* => env import -d -t ${backup_addr}
*/
-static int do_env_export(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_env_export(cmd_tbl_t *cmdtp, int flag,
+ int argc, char * const argv[])
{
char buf[32];
- char *addr, *cmd, *res;
- size_t size;
+ ulong addr;
+ char *ptr, *cmd, *res;
+ size_t size = 0;
ssize_t len;
env_t *envp;
char sep = '\n';
sep = '\0';
chk = 1;
break;
+ case 's': /* size given */
+ if (--argc <= 0)
+ return cmd_usage(cmdtp);
+ size = simple_strtoul(*++argv, NULL, 16);
+ goto NXTARG;
case 't': /* text format */
if (fmt++)
goto sep_err;
sep = '\n';
break;
default:
- return cmd_usage(cmdtp);
+ return CMD_RET_USAGE;
}
}
+NXTARG: ;
}
if (argc < 1)
- return cmd_usage(cmdtp);
+ return CMD_RET_USAGE;
- addr = (char *)simple_strtoul(argv[0], NULL, 16);
+ addr = simple_strtoul(argv[0], NULL, 16);
+ ptr = map_sysmem(addr, size);
- if (argc == 2) {
- size = simple_strtoul(argv[1], NULL, 16);
- memset(addr, '\0', size);
- } else {
- size = 0;
- }
+ if (size)
+ memset(ptr, '\0', size);
+
+ argc--;
+ argv++;
if (sep) { /* export as text file */
- len = hexport_r(&env_htab, sep, &addr, size);
+ len = hexport_r(&env_htab, sep,
+ H_MATCH_KEY | H_MATCH_IDENT,
+ &ptr, size, argc, argv);
if (len < 0) {
- error("Cannot export environment: errno = %d\n",
- errno);
+ error("Cannot export environment: errno = %d\n", errno);
return 1;
}
sprintf(buf, "%zX", (size_t)len);
return 0;
}
- envp = (env_t *)addr;
+ envp = (env_t *)ptr;
if (chk) /* export as checksum protected block */
res = (char *)envp->data;
else /* export as raw binary data */
- res = addr;
+ res = ptr;
- len = hexport_r(&env_htab, '\0', &res, ENV_SIZE);
+ len = hexport_r(&env_htab, '\0',
+ H_MATCH_KEY | H_MATCH_IDENT,
+ &res, ENV_SIZE, argc, argv);
if (len < 0) {
- error("Cannot export environment: errno = %d\n",
- errno);
+ error("Cannot export environment: errno = %d\n", errno);
return 1;
}
if (chk) {
- envp->crc = crc32(0, envp->data, ENV_SIZE);
+ envp->crc = crc32(0, envp->data, ENV_SIZE);
#ifdef CONFIG_ENV_ADDR_REDUND
envp->flags = ACTIVE_FLAG;
#endif
}
- sprintf(buf, "%zX", (size_t)(len + offsetof(env_t, data)));
- setenv("filesize", buf);
+ setenv_hex("filesize", len + offsetof(env_t, data));
return 0;
sep_err:
- printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n",
- cmd);
+ printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n", cmd);
return 1;
}
#endif
#ifdef CONFIG_CMD_IMPORTENV
/*
- * env import [-d] [-t | -b | -c] addr [size]
+ * env import [-d] [-t [-r] | -b | -c] addr [size]
* -d: delete existing environment before importing;
* otherwise overwrite / append to existion definitions
* -t: assume text format; either "size" must be given or the
* text data must be '\0' terminated
+ * -r: handle CRLF like LF, that means exported variables with
+ * a content which ends with \r won't get imported. Used
+ * to import text files created with editors which are using CRLF
+ * for line endings. Only effective in addition to -t.
* -b: assume binary format ('\0' separated, "\0\0" terminated)
* -c: assume checksum protected environment format
* addr: memory address to read from
* size: length of input data; if missing, proper '\0'
* termination is mandatory
*/
-static int do_env_import(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_env_import(cmd_tbl_t *cmdtp, int flag,
+ int argc, char * const argv[])
{
- char *cmd, *addr;
+ ulong addr;
+ char *cmd, *ptr;
char sep = '\n';
int chk = 0;
int fmt = 0;
int del = 0;
+ int crlf_is_lf = 0;
size_t size;
cmd = *argv;
goto sep_err;
sep = '\n';
break;
+ case 'r': /* handle CRLF like LF */
+ crlf_is_lf = 1;
+ break;
case 'd':
del = 1;
break;
default:
- return cmd_usage(cmdtp);
+ return CMD_RET_USAGE;
}
}
}
if (argc < 1)
- return cmd_usage(cmdtp);
+ return CMD_RET_USAGE;
if (!fmt)
printf("## Warning: defaulting to text format\n");
- addr = (char *)simple_strtoul(argv[0], NULL, 16);
+ if (sep != '\n' && crlf_is_lf )
+ crlf_is_lf = 0;
+
+ addr = simple_strtoul(argv[0], NULL, 16);
+ ptr = map_sysmem(addr, 0);
if (argc == 2) {
size = simple_strtoul(argv[1], NULL, 16);
+ } else if (argc == 1 && chk) {
+ puts("## Error: external checksum format must pass size\n");
+ return CMD_RET_FAILURE;
} else {
- char *s = addr;
+ char *s = ptr;
size = 0;
printf("## Warning: Input data exceeds %d bytes"
" - truncated\n", MAX_ENV_SIZE);
}
- ++size;
- printf("## Info: input data size = %zd = 0x%zX\n", size, size);
+ size += 2;
+ printf("## Info: input data size = %zu = 0x%zX\n", size, size);
}
if (chk) {
uint32_t crc;
- env_t *ep = (env_t *)addr;
+ env_t *ep = (env_t *)ptr;
size -= offsetof(env_t, data);
memcpy(&crc, &ep->crc, sizeof(crc));
puts("## Error: bad CRC, import failed\n");
return 1;
}
- addr = (char *)ep->data;
+ ptr = (char *)ep->data;
}
- if (himport_r(&env_htab, addr, size, sep, del ? 0 : H_NOCLEAR) == 0) {
+ if (himport_r(&env_htab, ptr, size, sep, del ? 0 : H_NOCLEAR,
+ crlf_is_lf, 0, NULL) == 0) {
error("Environment import failed: errno = %d\n", errno);
return 1;
}
}
#endif
-#if defined(CONFIG_CMD_RUN)
-extern int do_run(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+#if defined(CONFIG_CMD_ENV_EXISTS)
+static int do_env_exists(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ ENTRY e, *ep;
+
+ if (argc < 2)
+ return CMD_RET_USAGE;
+
+ e.key = argv[1];
+ e.data = NULL;
+ hsearch_r(e, FIND, &ep, &env_htab, 0);
+
+ return (ep == NULL) ? 1 : 0;
+}
#endif
/*
U_BOOT_CMD_MKENT(ask, CONFIG_SYS_MAXARGS, 1, do_env_ask, "", ""),
#endif
U_BOOT_CMD_MKENT(default, 1, 0, do_env_default, "", ""),
- U_BOOT_CMD_MKENT(delete, 2, 0, do_env_delete, "", ""),
+ U_BOOT_CMD_MKENT(delete, CONFIG_SYS_MAXARGS, 0, do_env_delete, "", ""),
#if defined(CONFIG_CMD_EDITENV)
U_BOOT_CMD_MKENT(edit, 2, 0, do_env_edit, "", ""),
#endif
+#if defined(CONFIG_CMD_ENV_CALLBACK)
+ U_BOOT_CMD_MKENT(callbacks, 1, 0, do_env_callback, "", ""),
+#endif
+#if defined(CONFIG_CMD_ENV_FLAGS)
+ U_BOOT_CMD_MKENT(flags, 1, 0, do_env_flags, "", ""),
+#endif
#if defined(CONFIG_CMD_EXPORTENV)
U_BOOT_CMD_MKENT(export, 4, 0, do_env_export, "", ""),
#endif
U_BOOT_CMD_MKENT(save, 1, 0, do_env_save, "", ""),
#endif
U_BOOT_CMD_MKENT(set, CONFIG_SYS_MAXARGS, 0, do_env_set, "", ""),
+#if defined(CONFIG_CMD_ENV_EXISTS)
+ U_BOOT_CMD_MKENT(exists, 2, 0, do_env_exists, "", ""),
+#endif
};
#if defined(CONFIG_NEEDS_MANUAL_RELOC)
cmd_tbl_t *cp;
if (argc < 2)
- return cmd_usage(cmdtp);
+ return CMD_RET_USAGE;
/* drop initial "env" arg */
argc--;
if (cp)
return cp->cmd(cmdtp, flag, argc, argv);
- return cmd_usage(cmdtp);
+ return CMD_RET_USAGE;
}
-U_BOOT_CMD(
- env, CONFIG_SYS_MAXARGS, 1, do_env,
- "environment handling commands",
+#ifdef CONFIG_SYS_LONGHELP
+static char env_help_text[] =
#if defined(CONFIG_CMD_ASKENV)
"ask name [message] [size] - ask for environment variable\nenv "
#endif
- "default -f - reset default environment\n"
+#if defined(CONFIG_CMD_ENV_CALLBACK)
+ "callbacks - print callbacks and their associated variables\nenv "
+#endif
+ "default [-f] -a - [forcibly] reset default environment\n"
+ "env default [-f] var [...] - [forcibly] reset variable(s) to their default values\n"
+ "env delete [-f] var [...] - [forcibly] delete variable(s)\n"
#if defined(CONFIG_CMD_EDITENV)
"env edit name - edit environment variable\n"
#endif
- "env export [-t | -b | -c] addr [size] - export environment\n"
+#if defined(CONFIG_CMD_ENV_EXISTS)
+ "env exists name - tests for existence of variable\n"
+#endif
+#if defined(CONFIG_CMD_EXPORTENV)
+ "env export [-t | -b | -c] [-s size] addr [var ...] - export environment\n"
+#endif
+#if defined(CONFIG_CMD_ENV_FLAGS)
+ "env flags - print variables that have non-default flags\n"
+#endif
#if defined(CONFIG_CMD_GREPENV)
- "env grep string [...] - search environment\n"
+#ifdef CONFIG_REGEX
+ "env grep [-e] [-n | -v | -b] string [...] - search environment\n"
+#else
+ "env grep [-n | -v | -b] string [...] - search environment\n"
#endif
- "env import [-d] [-t | -b | -c] addr [size] - import environment\n"
- "env print [name ...] - print environment\n"
+#endif
+#if defined(CONFIG_CMD_IMPORTENV)
+ "env import [-d] [-t [-r] | -b | -c] addr [size] - import environment\n"
+#endif
+ "env print [-a | name ...] - print environment\n"
#if defined(CONFIG_CMD_RUN)
"env run var [...] - run commands in an environment variable\n"
#endif
+#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
"env save - save environment\n"
- "env set [-f] name [arg ...]\n"
+#endif
+ "env set [-f] name [arg ...]\n";
+#endif
+
+U_BOOT_CMD(
+ env, CONFIG_SYS_MAXARGS, 1, do_env,
+ "environment handling commands", env_help_text
);
/*
U_BOOT_CMD_COMPLETE(
printenv, CONFIG_SYS_MAXARGS, 1, do_env_print,
"print environment variables",
- "\n - print values of all environment variables\n"
+ "[-a]\n - print [all] values of all environment variables\n"
"printenv name ...\n"
" - print value of environment variable 'name'",
var_complete
U_BOOT_CMD_COMPLETE(
grepenv, CONFIG_SYS_MAXARGS, 0, do_env_grep,
"search environment variables",
- "string ...\n"
- " - list environment name=value pairs matching 'string'",
+#ifdef CONFIG_REGEX
+ "[-e] [-n | -v | -b] string ...\n"
+#else
+ "[-n | -v | -b] string ...\n"
+#endif
+ " - list environment name=value pairs matching 'string'\n"
+#ifdef CONFIG_REGEX
+ " \"-e\": enable regular expressions;\n"
+#endif
+ " \"-n\": search variable names; \"-v\": search values;\n"
+ " \"-b\": search both names and values (default)",
var_complete
);
#endif
U_BOOT_CMD_COMPLETE(
setenv, CONFIG_SYS_MAXARGS, 0, do_env_set,
"set environment variables",
- "name value ...\n"
- " - set environment variable 'name' to 'value ...'\n"
- "setenv name\n"
- " - delete environment variable 'name'",
+ "[-f] name value ...\n"
+ " - [forcibly] set environment variable 'name' to 'value ...'\n"
+ "setenv [-f] name\n"
+ " - [forcibly] delete environment variable 'name'",
var_complete
);
askenv, CONFIG_SYS_MAXARGS, 1, do_env_ask,
"get environment variables from stdin",
"name [message] [size]\n"
- " - get environment variable 'name' from stdin (max 'size' chars)\n"
- "askenv name\n"
- " - get environment variable 'name' from stdin\n"
- "askenv name size\n"
- " - get environment variable 'name' from stdin (max 'size' chars)\n"
- "askenv name [message] size\n"
- " - display 'message' string and get environment variable 'name'"
- "from stdin (max 'size' chars)"
+ " - get environment variable 'name' from stdin (max 'size' chars)"
);
#endif
var_complete
);
#endif
+#endif /* CONFIG_SPL_BUILD */
projects / karo-tx-uboot.git / blobdiff