/branches/gl-inet/package/boot/uboot-oxnas/src/common/env_ext4.c |
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/* |
* (c) Copyright 2011 by Tigris Elektronik GmbH |
* |
* Author: |
* Maximilian Schwerin <mvs@tigris.de> |
* |
* SPDX-License-Identifier: GPL-2.0+ |
*/ |
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#include <common.h> |
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#include <command.h> |
#include <environment.h> |
#include <linux/stddef.h> |
#include <malloc.h> |
#include <search.h> |
#include <errno.h> |
#include <ext4fs.h> |
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char *env_name_spec = "EXT4"; |
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env_t *env_ptr; |
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DECLARE_GLOBAL_DATA_PTR; |
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int env_init(void) |
{ |
/* use default */ |
gd->env_addr = (ulong)&default_environment[0]; |
gd->env_valid = 1; |
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return 0; |
} |
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#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; |
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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; |
} |
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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; |
} |
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err = ext4_register_device(dev_desc, part); |
if (err) { |
printf("Failed to register %s%d:%d\n", |
EXT4_ENV_INTERFACE, dev, part); |
return 1; |
} |
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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; |
} |
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puts("done\n"); |
return 0; |
} |
#endif /* CONFIG_CMD_SAVEENV */ |
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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; |
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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; |
} |
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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; |
} |
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err = ext4_read_file(EXT4_ENV_FILE, (uchar *)&buf, 0, CONFIG_ENV_SIZE); |
ext4fs_close(); |
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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; |
} |
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env_import(buf, 1); |
} |