You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
117 lines
2.3 KiB
117 lines
2.3 KiB
10 years ago
|
/*
|
||
|
|
* (c) Copyright 2011 by Tigris Elektronik GmbH
|
||
|
|
*
|
||
|
|
* Author:
|
||
|
|
* Maximilian Schwerin <mvs@tigris.de>
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: GPL-2.0+
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
|
||
|
|
#include <command.h>
|
||
|
|
#include <environment.h>
|
||
|
|
#include <linux/stddef.h>
|
||
|
|
#include <malloc.h>
|
||
|
|
#include <search.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <ext4fs.h>
|
||
|
|
|
||
|
|
char *env_name_spec = "EXT4";
|
||
|
|
|
||
|
|
env_t *env_ptr;
|
||
|
|
|
||
|
|
DECLARE_GLOBAL_DATA_PTR;
|
||
|
|
|
||
|
|
int env_init(void)
|
||
|
|
{
|
||
|
|
/* use default */
|
||
|
|
gd->env_addr = (ulong)&default_environment[0];
|
||
|
|
gd->env_valid = 1;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef CONFIG_CMD_SAVEENV
|
||
|
|
int saveenv(void)
|
||
|
|
{
|
||
|
|
env_t env_new;
|
||
|
|
ssize_t len;
|
||
|
|
char *res;
|
||
|
|
block_dev_desc_t *dev_desc = NULL;
|
||
|
|
int dev = EXT4_ENV_DEVICE;
|
||
|
|
int part = EXT4_ENV_PART;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
res = (char *)&env_new.data;
|
||
|
|
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
|
||
|
|
if (len < 0) {
|
||
|
|
error("Cannot export environment: errno = %d\n", errno);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
dev_desc = get_dev(EXT4_ENV_INTERFACE, dev);
|
||
|
|
if (dev_desc == NULL) {
|
||
|
|
printf("Failed to find %s%d\n",
|
||
|
|
EXT4_ENV_INTERFACE, dev);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
err = ext4_register_device(dev_desc, part);
|
||
|
|
if (err) {
|
||
|
|
printf("Failed to register %s%d:%d\n",
|
||
|
|
EXT4_ENV_INTERFACE, dev, part);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
env_new.crc = crc32(0, env_new.data, ENV_SIZE);
|
||
|
|
err = ext4fs_write(EXT4_ENV_FILE, (void *)&env_new, sizeof(env_t));
|
||
|
|
ext4fs_close();
|
||
|
|
if (err == -1) {
|
||
|
|
printf("\n** Unable to write \"%s\" from %s%d:%d **\n",
|
||
|
|
EXT4_ENV_FILE, EXT4_ENV_INTERFACE, dev, part);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
puts("done\n");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#endif /* CONFIG_CMD_SAVEENV */
|
||
|
|
|
||
|
|
void env_relocate_spec(void)
|
||
|
|
{
|
||
|
|
char buf[CONFIG_ENV_SIZE];
|
||
|
|
block_dev_desc_t *dev_desc = NULL;
|
||
|
|
int dev = EXT4_ENV_DEVICE;
|
||
|
|
int part = EXT4_ENV_PART;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
dev_desc = get_dev(EXT4_ENV_INTERFACE, dev);
|
||
|
|
if (dev_desc == NULL) {
|
||
|
|
printf("Failed to find %s%d\n",
|
||
|
|
EXT4_ENV_INTERFACE, dev);
|
||
|
|
set_default_env(NULL);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
err = ext4_register_device(dev_desc, part);
|
||
|
|
if (err) {
|
||
|
|
printf("Failed to register %s%d:%d\n",
|
||
|
|
EXT4_ENV_INTERFACE, dev, part);
|
||
|
|
set_default_env(NULL);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
err = ext4_read_file(EXT4_ENV_FILE, (uchar *)&buf, 0, CONFIG_ENV_SIZE);
|
||
|
|
ext4fs_close();
|
||
|
|
|
||
|
|
if (err == -1) {
|
||
|
|
printf("\n** Unable to read \"%s\" from %s%d:%d **\n",
|
||
|
|
EXT4_ENV_FILE, EXT4_ENV_INTERFACE, dev, part);
|
||
|
|
set_default_env(NULL);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
env_import(buf, 1);
|
||
|
|
}
|