add uboot-oxnas

[openwrt/openwrt.git] / package / boot / uboot-oxnas / files / common / env_ext4.c

diff --git a/package/boot/uboot-oxnas/files/common/env_ext4.c b/package/boot/uboot-oxnas/files/common/env_ext4.c
new file mode 100644 (file)
index 0000000..e98d94d
--- /dev/null
+++ b/package/boot/uboot-oxnas/files/common/env_ext4.c
@@ -0,0 +1,116 @@
+/*
+ * (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);
+}