ext4_extent: fix truncate freeing blocks at the wrong boundary

[lwext4.git] / include / ext4_xattr.h

diff --git a/include/ext4_xattr.h b/include/ext4_xattr.h
index f6076d2b8b3fb3858480edb5b62b799d91b90c2e..3cd1bcd4b66c5af1e85c33ca1c3d166cb933b3d1 100644 (file)
--- a/include/ext4_xattr.h
+++ b/include/ext4_xattr.h
@@ -43,6 +43,78 @@ extern "C" {
 
 #include "ext4_config.h"
 #include "ext4_types.h"
+#include "ext4_inode.h"
+#include "misc/tree.h"
+#include "misc/queue.h"
+
+struct ext4_xattr_item {
+       /* This attribute should be stored in inode body */
+       bool in_inode;
+       bool is_data;
+
+       uint8_t name_index;
+       char  *name;
+       size_t name_len;
+       void  *data;
+       size_t data_size;
+
+       RB_ENTRY(ext4_xattr_item) node;
+};
+
+struct ext4_xattr_ref {
+       bool block_loaded;
+       struct ext4_block block;
+       struct ext4_inode_ref *inode_ref;
+       bool   dirty;
+       size_t ea_size;
+       size_t block_size_rem;
+       size_t inode_size_rem;
+       struct ext4_fs *fs;
+
+       void *iter_arg;
+       struct ext4_xattr_item *iter_from;
+
+       RB_HEAD(ext4_xattr_tree,
+               ext4_xattr_item) root;
+};
+
+#define EXT4_XATTR_PAD_BITS            2
+#define EXT4_XATTR_PAD         (1<<EXT4_XATTR_PAD_BITS)
+#define EXT4_XATTR_ROUND               (EXT4_XATTR_PAD-1)
+#define EXT4_XATTR_LEN(name_len) \
+       (((name_len) + EXT4_XATTR_ROUND + \
+       sizeof(struct ext4_xattr_entry)) & ~EXT4_XATTR_ROUND)
+#define EXT4_XATTR_NEXT(entry) \
+       ((struct ext4_xattr_entry *)( \
+        (char *)(entry) + EXT4_XATTR_LEN((entry)->e_name_len)))
+#define EXT4_XATTR_SIZE(size) \
+       (((size) + EXT4_XATTR_ROUND) & ~EXT4_XATTR_ROUND)
+#define EXT4_XATTR_NAME(entry) \
+       ((char *)((entry) + 1))
+
+#define EXT4_XATTR_IHDR(sb, raw_inode) \
+       ((struct ext4_xattr_ibody_header *) \
+               ((char *)raw_inode + \
+               EXT4_GOOD_OLD_INODE_SIZE + \
+               ext4_inode_get_extra_isize(sb, raw_inode)))
+#define EXT4_XATTR_IFIRST(hdr) \
+       ((struct ext4_xattr_entry *)((hdr)+1))
+
+#define EXT4_XATTR_BHDR(block) \
+       ((struct ext4_xattr_header *)((block)->data))
+#define EXT4_XATTR_ENTRY(ptr) \
+       ((struct ext4_xattr_entry *)(ptr))
+#define EXT4_XATTR_BFIRST(block) \
+       EXT4_XATTR_ENTRY(EXT4_XATTR_BHDR(block)+1)
+#define EXT4_XATTR_IS_LAST_ENTRY(entry) \
+       (*(uint32_t *)(entry) == 0)
+
+#define EXT4_ZERO_XATTR_VALUE ((void *)-1)
+
+
+#define EXT4_XATTR_ITERATE_CONT 0
+#define EXT4_XATTR_ITERATE_STOP 1
+#define EXT4_XATTR_ITERATE_PAUSE 2
 
 int ext4_fs_get_xattr_ref(struct ext4_fs *fs, struct ext4_inode_ref *inode_ref,
                          struct ext4_xattr_ref *ref);
@@ -67,7 +139,8 @@ void ext4_fs_xattr_iterate(struct ext4_xattr_ref *ref,
 void ext4_fs_xattr_iterate_reset(struct ext4_xattr_ref *ref);
 
 const char *ext4_extract_xattr_name(const char *full_name, size_t full_name_len,
-                             uint8_t *name_index, size_t *name_len);
+                             uint8_t *name_index, size_t *name_len,
+                             bool *found);
 
 const char *ext4_get_xattr_name_prefix(uint8_t name_index,
                                       size_t *ret_prefix_len);