#include "util.h"
#include "config.h"
+#include "list.h"
#include <string.h>
+
+struct stat;
+struct lookup_table;
+typedef struct WIMStruct WIMStruct;
+
/* Size of the struct dentry up to and including the file_name_len. */
#define WIM_DENTRY_DISK_SIZE 102
#define WIM_ADS_ENTRY_DISK_SIZE 38
+#ifndef WIM_HASH_SIZE
+#define WIM_HASH_SIZE 20
+#endif
+
/*
* Reparse tags documented at
* http://msdn.microsoft.com/en-us/library/dd541667(v=prot.10).aspx
- *
- * IO_REPARSE_TAG_SYMLINK is the only one we really care about.
*/
#define WIM_IO_REPARSE_TAG_RESERVED_ZERO 0x00000000
#define WIM_IO_REPARSE_TAG_RESERVED_ONE 0x00000001
u16 stream_name_len;
/* Length of stream name (UTF-8) */
- u16 stream_name_len_utf8;
+ u16 stream_name_utf8_len;
/* Stream name (UTF-16) */
char *stream_name;
return (len + 7) & ~7;
}
+static inline void destroy_ads_entry(struct ads_entry *entry)
+{
+ FREE(entry->stream_name);
+ FREE(entry->stream_name_utf8);
+ memset(entry, 0, sizeof(entry));
+}
+
+static inline bool ads_entry_has_name(const struct ads_entry *entry,
+ const char *name, size_t name_len)
+{
+ if (entry->stream_name_utf8_len != name_len)
+ return false;
+ return memcmp(entry->stream_name_utf8, name, name_len) == 0;
+}
+
+
/* In-memory structure for a directory entry. There is a directory tree for
* each image in the WIM. */
struct dentry {
/* Alternate stream entries for this dentry. */
struct ads_entry *ads_entries;
- /* Number of references to the dentry tree itself, as in multiple
- * WIMStructs */
- int refcnt;
+ union {
+ /* Number of references to the dentry tree itself, as in multiple
+ * WIMStructs */
+ int refcnt;
+
+ /* Number of times this dentry has been opened (only for
+ * directories!) */
+ u32 num_times_opened;
+ };
+
+ /* List of dentries in the hard link set */
+ enum {
+ GROUP_INDEPENDENT,
+ GROUP_MASTER,
+ GROUP_SLAVE
+ } link_group_master_status;
+ struct list_head link_group_list;
};
/* Return hash of the "unnamed" (default) data stream. */
return dentry->hash;
}
+static inline size_t dentry_link_group_size(const struct dentry *dentry)
+{
+ const struct list_head *cur = &dentry->link_group_list;
+ size_t size = 0;
+ do {
+ size++;
+ cur = cur->next;
+ } while (cur != &dentry->link_group_list);
+ return size;
+}
+
+extern struct ads_entry *dentry_get_ads_entry(struct dentry *dentry,
+ const char *stream_name);
+
+extern struct ads_entry *dentry_add_ads(struct dentry *dentry,
+ const char *stream_name);
+
+extern void dentry_remove_ads(struct dentry *dentry, struct ads_entry *entry);
+
+extern const char *path_stream_name(const char *path);
+
extern u64 dentry_total_length(const struct dentry *dentry);
extern void stbuf_to_dentry(const struct stat *stbuf, struct dentry *dentry);
-extern void dentry_to_stbuf(const struct dentry *dentry, struct stat *stbuf,
- const struct lookup_table *table);
+extern int dentry_to_stbuf(const struct dentry *dentry, struct stat *stbuf,
+ const struct lookup_table *table);
extern int for_dentry_in_tree(struct dentry *root,
int (*visitor)(struct dentry*, void*),
extern int calculate_dentry_full_path(struct dentry *dentry, void *ignore);
extern void calculate_subdir_offsets(struct dentry *dentry, u64 *subdir_offset_p);
+extern int get_names(char **name_utf16_ret, char **name_utf8_ret,
+ u16 *name_utf16_len_ret, u16 *name_utf8_len_ret,
+ const char *name);
extern int change_dentry_name(struct dentry *dentry, const char *new_name);
+extern int change_ads_name(struct ads_entry *entry, const char *new_name);
extern void unlink_dentry(struct dentry *dentry);
extern void link_dentry(struct dentry *dentry, struct dentry *parent);
extern void init_dentry(struct dentry *dentry, const char *name);
extern struct dentry *new_dentry(const char *name);
+extern void dentry_free_ads_entries(struct dentry *dentry);
extern void free_dentry(struct dentry *dentry);
+extern void put_dentry(struct dentry *dentry);
+extern int share_dentry_ads(struct dentry *master,
+ struct dentry *slave);
+extern struct dentry *clone_dentry(struct dentry *old);
extern void free_dentry_tree(struct dentry *root,
struct lookup_table *lookup_table,
bool lt_decrement_refcnt);
extern u8 *write_dentry_tree(const struct dentry *tree, u8 *p);
+
/* Inline utility functions for WIMDentries */
-/*
- * Returns true if @dentry has the UTF-8 file name @name that has length
- * @name_len.
- */
-static inline bool dentry_has_name(const struct dentry *dentry, const char *name,
- size_t name_len)
-{
- if (dentry->file_name_utf8_len != name_len)
- return false;
- return memcmp(dentry->file_name_utf8, name, name_len) == 0;
-}
static inline bool dentry_is_root(const struct dentry *dentry)
{
static inline bool dentry_is_directory(const struct dentry *dentry)
{
- return (dentry->attributes & FILE_ATTRIBUTE_DIRECTORY) != 0;
+ return (dentry->attributes & FILE_ATTRIBUTE_DIRECTORY)
+ && !(dentry->attributes & FILE_ATTRIBUTE_REPARSE_POINT);
}
+/* For our purposes, we consider "real" symlinks and "junction points" to both
+ * be symlinks. */
static inline bool dentry_is_symlink(const struct dentry *dentry)
{
return (dentry->attributes & FILE_ATTRIBUTE_REPARSE_POINT)
- && (dentry->reparse_tag == WIM_IO_REPARSE_TAG_SYMLINK);
+ && ((dentry->reparse_tag == WIM_IO_REPARSE_TAG_SYMLINK) ||
+ dentry->reparse_tag == WIM_IO_REPARSE_TAG_MOUNT_POINT);
}
static inline bool dentry_is_regular_file(const struct dentry *dentry)
{
- return !dentry_is_directory(dentry);
+ return !dentry_is_directory(dentry) && !dentry_is_symlink(dentry);
}
static inline bool dentry_is_empty_directory(const struct dentry *dentry)