ref: 79fb06860bb52d73e6f69fbb2c79d05eaba37a5c
parent: 142e8c1b517189dbc9466e6c6c445aa40f208a1f
author: gkostka <kostka.grzegorz@gmail.com>
date: Mon Nov 16 16:28:08 EST 2015
Create default directory structure in mkfs
--- a/lwext4/ext4_mkfs.c
+++ b/lwext4/ext4_mkfs.c
@@ -37,6 +37,7 @@
#include "ext4_config.h"
#include "ext4_super.h"
#include "ext4_block_group.h"
+#include "ext4_dir.h"
#include "ext4_fs.h"
#include "ext4_inode.h"
#include "ext4_debug.h"
@@ -281,6 +282,7 @@
bg_free_blk = info->blocks_per_group -
(aux_info->inode_table_blocks + aux_info->bg_desc_blocks);
+ bg_free_blk -= 2;
blk_off += aux_info->bg_desc_blocks;
if (has_superblock(info, i)) {@@ -465,27 +467,76 @@
{int r = EOK;
int i;
-
+ struct ext4_inode_ref inode_ref;
for (i = 1; i < 12; ++i) {+ int filetype = EXT4_DIRENTRY_REG_FILE;
- bool dir = false;
-
switch (i) {case EXT4_ROOT_INO:
case EXT4_GOOD_OLD_FIRST_INO:
- dir = true;
+ filetype = EXT4_DIRENTRY_DIR;
break;
}
- uint32_t index = 0;
- r = ext4_ialloc_alloc_inode(fs, &index, dir);
+ r = ext4_fs_alloc_inode(fs, &inode_ref, filetype);
if (r != EOK)
return r;
+
+ ext4_inode_set_mode(&fs->sb, inode_ref.inode, 0);
+ ext4_fs_put_inode_ref(&inode_ref);
}
return r;
}
+static int create_dirs(struct ext4_fs *fs)
+{+ int r = EOK;
+ struct ext4_inode_ref root;
+ struct ext4_inode_ref child;
+
+ r = ext4_fs_get_inode_ref(fs, EXT4_ROOT_INO, &root);
+ if (r != EOK)
+ return r;
+
+ r = ext4_fs_get_inode_ref(fs, EXT4_GOOD_OLD_FIRST_INO, &child);
+ if (r != EOK)
+ return r;
+
+ ext4_inode_set_mode(&fs->sb, child.inode,
+ EXT4_INODE_MODE_DIRECTORY | 0777);
+
+ ext4_inode_set_mode(&fs->sb, root.inode,
+ EXT4_INODE_MODE_DIRECTORY | 0777);
+
+ r = ext4_dir_add_entry(&root, ".", strlen("."), &root);+ if (r != EOK)
+ return r;
+
+ r = ext4_dir_add_entry(&root, "..", strlen(".."), &root);+ if (r != EOK)
+ return r;
+
+ r = ext4_dir_add_entry(&child, ".", strlen("."), &child);+ if (r != EOK)
+ return r;
+
+ r = ext4_dir_add_entry(&child, "..", strlen(".."), &root);+ if (r != EOK)
+ return r;
+
+ r = ext4_dir_add_entry(&root, "lost+found", strlen("lost+found"), &child);+ if (r != EOK)
+ return r;
+
+ ext4_inode_set_links_count(root.inode, 3);
+ ext4_inode_set_links_count(child.inode, 2);
+
+ ext4_fs_put_inode_ref(&child);
+ ext4_fs_put_inode_ref(&root);
+ return r;
+}
+
int ext4_mkfs(struct ext4_fs *fs, struct ext4_blockdev *bd,
struct ext4_mkfs_info *info)
{@@ -581,6 +632,10 @@
goto cache_fini;
r = alloc_inodes(fs);
+ if (r != EOK)
+ goto fs_fini;
+
+ r = create_dirs(fs);
if (r != EOK)
goto fs_fini;