X-Git-Url: https://wimlib.net/git/?a=blobdiff_plain;ds=sidebyside;f=src%2Fdentry.c;h=58782eb865e559606d47ee52ef4a1987b629de38;hb=50670821723291959a6f35442c523800d369c934;hp=691f14c38412e851a42717c4335397e1df91a906;hpb=60b8f54df8fed44136bdc8ec615ee62703d87b69;p=wimlib

diff --git a/src/dentry.c b/src/dentry.c
index 691f14c3..58782eb8 100644
--- a/src/dentry.c
+++ b/src/dentry.c
@@ -77,8 +77,9 @@ static u64 dentry_correct_length(const struct dentry *dentry)
 
 static u64 __dentry_total_length(const struct dentry *dentry, u64 length)
 {
-	for (u16 i = 0; i < dentry->num_ads; i++)
-		length += ads_entry_total_length(&dentry->ads_entries[i]);
+	const struct inode *inode = dentry->inode;
+	for (u16 i = 0; i < inode->num_ads; i++)
+		length += ads_entry_total_length(&inode->ads_entries[i]);
 	return (length + 7) & ~7;
 }
 
@@ -95,137 +96,188 @@ u64 dentry_total_length(const struct dentry *dentry)
 	return __dentry_total_length(dentry, dentry->length);
 }
 
-/* Transfers file attributes from a `stat' buffer to a struct dentry. */
-void stbuf_to_dentry(const struct stat *stbuf, struct dentry *dentry)
+/* Transfers file attributes from a `stat' buffer to an inode. */
+void stbuf_to_inode(const struct stat *stbuf, struct inode *inode)
 {
 	if (S_ISLNK(stbuf->st_mode)) {
-		dentry->attributes = FILE_ATTRIBUTE_REPARSE_POINT;
-		dentry->reparse_tag = WIM_IO_REPARSE_TAG_SYMLINK;
+		inode->attributes = FILE_ATTRIBUTE_REPARSE_POINT;
+		inode->reparse_tag = WIM_IO_REPARSE_TAG_SYMLINK;
 	} else if (S_ISDIR(stbuf->st_mode)) {
-		dentry->attributes = FILE_ATTRIBUTE_DIRECTORY;
+		inode->attributes = FILE_ATTRIBUTE_DIRECTORY;
 	} else {
-		dentry->attributes = FILE_ATTRIBUTE_NORMAL;
+		inode->attributes = FILE_ATTRIBUTE_NORMAL;
 	}
 	if (sizeof(ino_t) >= 8)
-		dentry->link_group_id = (u64)stbuf->st_ino;
+		inode->ino = (u64)stbuf->st_ino;
 	else
-		dentry->link_group_id = (u64)stbuf->st_ino |
+		inode->ino = (u64)stbuf->st_ino |
 				   ((u64)stbuf->st_dev << (sizeof(ino_t) * 8));
 	/* Set timestamps */
-	dentry->creation_time = timespec_to_wim_timestamp(&stbuf->st_mtim);
-	dentry->last_write_time = timespec_to_wim_timestamp(&stbuf->st_mtim);
-	dentry->last_access_time = timespec_to_wim_timestamp(&stbuf->st_atim);
+	inode->creation_time = timespec_to_wim_timestamp(&stbuf->st_mtim);
+	inode->last_write_time = timespec_to_wim_timestamp(&stbuf->st_mtim);
+	inode->last_access_time = timespec_to_wim_timestamp(&stbuf->st_atim);
 }
 
-
-/* Sets all the timestamp fields of the dentry to the current time. */
-void dentry_update_all_timestamps(struct dentry *dentry)
+#ifdef WITH_FUSE
+/* Transfers file attributes from a struct inode to a `stat' buffer. 
+ *
+ * The lookup table entry tells us which stream in the inode we are statting.
+ * For a named data stream, everything returned is the same as the unnamed data
+ * stream except possibly the size and block count. */
+int inode_to_stbuf(const struct inode *inode, struct lookup_table_entry *lte,
+		   struct stat *stbuf)
 {
-	u64 now = get_wim_timestamp();
-	dentry->creation_time    = now;
-	dentry->last_access_time = now;
-	dentry->last_write_time  = now;
+	if (inode_is_symlink(inode))
+		stbuf->st_mode = S_IFLNK | 0777;
+	else if (inode_is_directory(inode))
+		stbuf->st_mode = S_IFDIR | 0755;
+	else
+		stbuf->st_mode = S_IFREG | 0644;
+
+	stbuf->st_ino   = (ino_t)inode->ino;
+	stbuf->st_nlink = inode->link_count;
+	stbuf->st_uid   = getuid();
+	stbuf->st_gid   = getgid();
+
+	if (lte) {
+		if (lte->resource_location == RESOURCE_IN_STAGING_FILE) {
+			wimlib_assert(lte->staging_file_name);
+			struct stat native_stat;
+			if (stat(lte->staging_file_name, &native_stat) != 0) {
+				DEBUG("Failed to stat `%s': %m",
+				      lte->staging_file_name);
+				return -errno;
+			}
+			stbuf->st_size = native_stat.st_size;
+		} else {
+			stbuf->st_size = wim_resource_size(lte);
+		}
+	} else {
+		stbuf->st_size = 0;
+	}
+
+	stbuf->st_atime   = wim_timestamp_to_unix(inode->last_access_time);
+	stbuf->st_mtime   = wim_timestamp_to_unix(inode->last_write_time);
+	stbuf->st_ctime   = wim_timestamp_to_unix(inode->creation_time);
+	stbuf->st_blocks  = (stbuf->st_size + 511) / 512;
+	return 0;
 }
+#endif
 
-/* Returns the alternate data stream entry belonging to @dentry that has the
+#ifdef WITH_FUSE
+/* Returns the alternate data stream entry belonging to @inode that has the
  * stream name @stream_name. */
-struct ads_entry *dentry_get_ads_entry(struct dentry *dentry,
-				       const char *stream_name)
+struct ads_entry *inode_get_ads_entry(struct inode *inode,
+				      const char *stream_name,
+				      u16 *idx_ret)
 {
 	size_t stream_name_len;
 	if (!stream_name)
 		return NULL;
-	if (dentry->num_ads) {
+	if (inode->num_ads) {
 		u16 i = 0;
 		stream_name_len = strlen(stream_name);
 		do {
-			if (ads_entry_has_name(&dentry->ads_entries[i],
+			if (ads_entry_has_name(&inode->ads_entries[i],
 					       stream_name, stream_name_len))
-				return &dentry->ads_entries[i];
-		} while (++i != dentry->num_ads);
+			{
+				if (idx_ret)
+					*idx_ret = i;
+				return &inode->ads_entries[i];
+			}
+		} while (++i != inode->num_ads);
 	}
 	return NULL;
 }
+#endif
 
-static void ads_entry_init(struct ads_entry *ads_entry)
+
+static int init_ads_entry(struct ads_entry *ads_entry, const char *name)
+{
+	int ret = 0;
+	memset(ads_entry, 0, sizeof(*ads_entry));
+	if (name && *name)
+		ret = change_ads_name(ads_entry, name);
+	return ret;
+}
+
+static void destroy_ads_entry(struct ads_entry *ads_entry)
+{
+	FREE(ads_entry->stream_name);
+	FREE(ads_entry->stream_name_utf8);
+}
+
+
+void inode_free_ads_entries(struct inode *inode)
 {
-	memset(ads_entry, 0, sizeof(struct ads_entry));
-	INIT_LIST_HEAD(&ads_entry->lte_group_list.list);
-	ads_entry->lte_group_list.type = STREAM_TYPE_ADS;
+	if (inode->ads_entries) {
+		for (u16 i = 0; i < inode->num_ads; i++)
+			destroy_ads_entry(&inode->ads_entries[i]);
+		FREE(inode->ads_entries);
+	}
 }
 
+#if defined(WITH_FUSE) || defined(WITH_NTFS_3G)
 /* 
- * Add an alternate stream entry to a dentry and return a pointer to it, or NULL
+ * Add an alternate stream entry to an inode and return a pointer to it, or NULL
  * if memory could not be allocated.
  */
-struct ads_entry *dentry_add_ads(struct dentry *dentry, const char *stream_name)
+struct ads_entry *inode_add_ads(struct inode *inode, const char *stream_name)
 {
 	u16 num_ads;
 	struct ads_entry *ads_entries;
 	struct ads_entry *new_entry;
 
-	DEBUG("Add alternate data stream %s:%s",
-	       dentry->file_name_utf8, stream_name);
-
-	if (dentry->num_ads == 0xffff) {
-		ERROR("Too many alternate data streams in one dentry!");
+	if (inode->num_ads >= 0xfffe) {
+		ERROR("Too many alternate data streams in one inode!");
 		return NULL;
 	}
- 	num_ads = dentry->num_ads + 1;
-	ads_entries = REALLOC(dentry->ads_entries,
-			      num_ads * sizeof(struct ads_entry));
+ 	num_ads = inode->num_ads + 1;
+	ads_entries = REALLOC(inode->ads_entries,
+			      num_ads * sizeof(inode->ads_entries[0]));
 	if (!ads_entries) {
 		ERROR("Failed to allocate memory for new alternate data stream");
 		return NULL;
 	}
-	if (ads_entries != dentry->ads_entries) {
-		/* We moved the ADS entries.  Adjust the stream lists. */
-		for (u16 i = 0; i < dentry->num_ads; i++) {
-			struct list_head *cur = &ads_entries[i].lte_group_list.list;
-			cur->prev->next = cur;
-			cur->next->prev = cur;
-		}
-	}
+	inode->ads_entries = ads_entries;
 
-	new_entry = &ads_entries[num_ads - 1];
-	ads_entry_init(new_entry);
-	if (change_ads_name(new_entry, stream_name) != 0)
+	new_entry = &inode->ads_entries[num_ads - 1];
+	if (init_ads_entry(new_entry, stream_name) != 0)
 		return NULL;
-	dentry->ads_entries = ads_entries;
-	dentry->num_ads = num_ads;
+#ifdef WITH_FUSE
+	new_entry->stream_id = inode->next_stream_id++;
+#endif
 	return new_entry;
 }
+#endif
 
-/* Remove an alternate data stream from a dentry.
- *
- * The corresponding lookup table entry for the stream is NOT changed.
- *
- * @dentry:	The dentry
- * @ads_entry:	The alternate data stream entry (it MUST be one of the
- * 		   ads_entry's in the array dentry->ads_entries).
- */
-void dentry_remove_ads(struct dentry *dentry, struct ads_entry *ads_entry)
+#ifdef WITH_FUSE
+/* Remove an alternate data stream from the inode  */
+void inode_remove_ads(struct inode *inode, u16 idx,
+		      struct lookup_table *lookup_table)
 {
-	u16 idx;
-	u16 following;
+	struct ads_entry *ads_entry;
+	struct lookup_table_entry *lte;
 
-	wimlib_assert(dentry->num_ads);
-	idx = ads_entry - dentry->ads_entries;
-	wimlib_assert(idx < dentry->num_ads);
- 	following = dentry->num_ads - idx - 1;
+	ads_entry = &inode->ads_entries[idx];
 
-	destroy_ads_entry(ads_entry);
-	memcpy(ads_entry, ads_entry + 1, following * sizeof(struct ads_entry));
+	wimlib_assert(ads_entry);
+	wimlib_assert(inode->resolved);
 
-	/* We moved the ADS entries.  Adjust the stream lists. */
-	for (u16 i = 0; i < following; i++) {
-		struct list_head *cur = &ads_entry[i].lte_group_list.list;
-		cur->prev->next = cur;
-		cur->next->prev = cur;
-	}
+	lte = ads_entry->lte;
+
+	if (lte)
+		lte_decrement_refcnt(lte, lookup_table);
+
+	destroy_ads_entry(ads_entry);
 
-	dentry->num_ads--;
+	wimlib_assert(inode->num_ads);
+	memcpy(&inode->ads_entries[idx],
+	       &inode->ads_entries[idx + 1],
+	       (inode->num_ads - idx - 1) * sizeof(inode->ads_entries[0]));
+	inode->num_ads--;
 }
+#endif
 
 /* 
  * Calls a function on all directory entries in a directory tree.  It is called
@@ -242,7 +294,7 @@ int for_dentry_in_tree(struct dentry *root,
 	if (ret != 0)
 		return ret;
 
-	child = root->children;
+	child = root->inode->children;
 
 	if (!child)
 		return 0;
@@ -252,7 +304,7 @@ int for_dentry_in_tree(struct dentry *root,
 		if (ret != 0)
 			return ret;
 		child = child->next;
-	} while (child != root->children);
+	} while (child != root->inode->children);
 	return 0;
 }
 
@@ -267,7 +319,7 @@ int for_dentry_in_tree_depth(struct dentry *root,
 	struct dentry *child;
 	struct dentry *next;
 
-	child = root->children;
+	child = root->inode->children;
 	if (child) {
 		do {
 			next = child->next;
@@ -275,7 +327,7 @@ int for_dentry_in_tree_depth(struct dentry *root,
 			if (ret != 0)
 				return ret;
 			child = next;
-		} while (child != root->children);
+		} while (child != root->inode->children);
 	}
 	return visitor(root, arg);
 }
@@ -341,7 +393,7 @@ void calculate_subdir_offsets(struct dentry *dentry, u64 *subdir_offset_p)
 {
 	struct dentry *child;
 
-	child = dentry->children;
+	child = dentry->inode->children;
 	dentry->subdir_offset = *subdir_offset_p;
 
 	if (child) {
@@ -350,7 +402,7 @@ void calculate_subdir_offsets(struct dentry *dentry, u64 *subdir_offset_p)
 		do {
 			*subdir_offset_p += dentry_correct_total_length(child);
 			child = child->next;
-		} while (child != dentry->children);
+		} while (child != dentry->inode->children);
 
 		/* End-of-directory dentry on disk. */
 		*subdir_offset_p += 8;
@@ -360,7 +412,7 @@ void calculate_subdir_offsets(struct dentry *dentry, u64 *subdir_offset_p)
 		do {
 			calculate_subdir_offsets(child, subdir_offset_p);
 			child = child->next;
-		} while (child != dentry->children);
+		} while (child != dentry->inode->children);
 	} else {
 		/* On disk, childless directories have a valid subdir_offset
 		 * that points to an 8-byte end-of-directory dentry.  Regular
@@ -381,14 +433,14 @@ struct dentry *get_dentry_child_with_name(const struct dentry *dentry,
 	struct dentry *child;
 	size_t name_len;
 	
-	child = dentry->children;
+	child = dentry->inode->children;
 	if (child) {
 		name_len = strlen(name);
 		do {
 			if (dentry_has_name(child, name, name_len))
 				return child;
 			child = child->next;
-		} while (child != dentry->children);
+		} while (child != dentry->inode->children);
 	}
 	return NULL;
 }
@@ -405,14 +457,14 @@ static struct dentry *get_dentry_relative_path(struct dentry *cur_dir,
 	if (*path == '\0')
 		return cur_dir;
 
-	child = cur_dir->children;
+	child = cur_dir->inode->children;
 	if (child) {
 		new_path = path_next_part(path, &base_len);
 		do {
 			if (dentry_has_name(child, path, base_len))
 				return get_dentry_relative_path(child, new_path);
 			child = child->next;
-		} while (child != cur_dir->children);
+		} while (child != cur_dir->inode->children);
 	}
 	return NULL;
 }
@@ -427,6 +479,16 @@ struct dentry *get_dentry(WIMStruct *w, const char *path)
 	return get_dentry_relative_path(root, path);
 }
 
+struct inode *wim_pathname_to_inode(WIMStruct *w, const char *path)
+{
+	struct dentry *dentry;
+	dentry = get_dentry(w, path);
+	if (!dentry)
+		return NULL;
+	else
+		return dentry->inode;
+}
+
 /* Returns the dentry that corresponds to the parent directory of @path, or NULL
  * if the dentry is not found. */
 struct dentry *get_parent_dentry(WIMStruct *w, const char *path)
@@ -480,47 +542,40 @@ int print_dentry(struct dentry *dentry, void *lookup_table)
 {
 	const u8 *hash;
 	struct lookup_table_entry *lte;
+	const struct inode *inode = dentry->inode;
 	time_t time;
 	char *p;
 
 	printf("[DENTRY]\n");
 	printf("Length            = %"PRIu64"\n", dentry->length);
-	printf("Attributes        = 0x%x\n", dentry->attributes);
+	printf("Attributes        = 0x%x\n", inode->attributes);
 	for (unsigned i = 0; i < ARRAY_LEN(file_attr_flags); i++)
-		if (file_attr_flags[i].flag & dentry->attributes)
+		if (file_attr_flags[i].flag & inode->attributes)
 			printf("    FILE_ATTRIBUTE_%s is set\n",
 				file_attr_flags[i].name);
-	printf("Security ID       = %d\n", dentry->security_id);
+	printf("Security ID       = %d\n", inode->security_id);
 	printf("Subdir offset     = %"PRIu64"\n", dentry->subdir_offset);
-#if 0
-	printf("Unused1           = 0x%"PRIu64"\n", dentry->unused1);
-	printf("Unused2           = %"PRIu64"\n", dentry->unused2);
-#endif
-#if 0
-	printf("Creation Time     = 0x%"PRIx64"\n");
-	printf("Last Access Time  = 0x%"PRIx64"\n");
-	printf("Last Write Time   = 0x%"PRIx64"\n");
-#endif
 
 	/* Translate the timestamps into something readable */
-	time = wim_timestamp_to_unix(dentry->creation_time);
+	time = wim_timestamp_to_unix(inode->creation_time);
 	p = asctime(gmtime(&time));
 	*(strrchr(p, '\n')) = '\0';
 	printf("Creation Time     = %s UTC\n", p);
 
-	time = wim_timestamp_to_unix(dentry->last_access_time);
+	time = wim_timestamp_to_unix(inode->last_access_time);
 	p = asctime(gmtime(&time));
 	*(strrchr(p, '\n')) = '\0';
 	printf("Last Access Time  = %s UTC\n", p);
 
-	time = wim_timestamp_to_unix(dentry->last_write_time);
+	time = wim_timestamp_to_unix(inode->last_write_time);
 	p = asctime(gmtime(&time));
 	*(strrchr(p, '\n')) = '\0';
 	printf("Last Write Time   = %s UTC\n", p);
 
-	printf("Reparse Tag       = 0x%"PRIx32"\n", dentry->reparse_tag);
-	printf("Hard Link Group   = 0x%"PRIx64"\n", dentry->link_group_id);
-	printf("Number of Alternate Data Streams = %hu\n", dentry->num_ads);
+	printf("Reparse Tag       = 0x%"PRIx32"\n", inode->reparse_tag);
+	printf("Hard Link Group   = 0x%"PRIx64"\n", inode->ino);
+	printf("Hard Link Group Size = %"PRIu32"\n", inode->link_count);
+	printf("Number of Alternate Data Streams = %hu\n", inode->num_ads);
 	printf("Filename          = \"");
 	print_string(dentry->file_name, dentry->file_name_len);
 	puts("\"");
@@ -532,11 +587,11 @@ int print_dentry(struct dentry *dentry, void *lookup_table)
 	puts("\"");
 	printf("Short Name Length = %hu\n", dentry->short_name_len);
 	printf("Full Path (UTF-8) = \"%s\"\n", dentry->full_path_utf8);
-	lte = dentry_stream_lte(dentry, 0, lookup_table);
+	lte = inode_stream_lte(dentry->inode, 0, lookup_table);
 	if (lte) {
 		print_lookup_table_entry(lte);
 	} else {
-		hash = dentry_stream_hash(dentry, 0);
+		hash = inode_stream_hash(inode, 0);
 		if (hash) {
 			printf("Hash              = 0x"); 
 			print_hash(hash);
@@ -544,19 +599,19 @@ int print_dentry(struct dentry *dentry, void *lookup_table)
 			putchar('\n');
 		}
 	}
-	for (u16 i = 0; i < dentry->num_ads; i++) {
+	for (u16 i = 0; i < inode->num_ads; i++) {
 		printf("[Alternate Stream Entry %u]\n", i);
-		printf("Name = \"%s\"\n", dentry->ads_entries[i].stream_name_utf8);
+		printf("Name = \"%s\"\n", inode->ads_entries[i].stream_name_utf8);
 		printf("Name Length (UTF-16) = %u\n",
-				dentry->ads_entries[i].stream_name_len);
-		hash = dentry_stream_hash(dentry, i + 1);
+			inode->ads_entries[i].stream_name_len);
+		hash = inode_stream_hash(inode, i + 1);
 		if (hash) {
 			printf("Hash              = 0x"); 
 			print_hash(hash);
 			putchar('\n');
 		}
-		print_lookup_table_entry(dentry_stream_lte(dentry, i + 1,
-							   lookup_table));
+		print_lookup_table_entry(inode_stream_lte(inode, i + 1,
+							  lookup_table));
 	}
 	return 0;
 }
@@ -566,9 +621,29 @@ static void dentry_common_init(struct dentry *dentry)
 {
 	memset(dentry, 0, sizeof(struct dentry));
 	dentry->refcnt = 1;
-	dentry->security_id = -1;
-	dentry->ads_entries_status = ADS_ENTRIES_DEFAULT;
-	dentry->lte_group_list.type = STREAM_TYPE_NORMAL;
+}
+
+struct inode *new_timeless_inode()
+{
+	struct inode *inode = CALLOC(1, sizeof(struct inode));
+	if (!inode)
+		return NULL;
+	inode->security_id = -1;
+	inode->link_count = 1;
+	INIT_LIST_HEAD(&inode->dentry_list);
+	return inode;
+}
+
+struct inode *new_inode()
+{
+	struct inode *inode = new_timeless_inode();
+	if (!inode)
+		return NULL;
+	u64 now = get_wim_timestamp();
+	inode->creation_time = now;
+	inode->last_access_time = now;
+	inode->last_write_time = now;
+	return inode;
 }
 
 /* 
@@ -590,11 +665,10 @@ struct dentry *new_dentry(const char *name)
 	if (change_dentry_name(dentry, name) != 0)
 		goto err;
 
-	dentry_update_all_timestamps(dentry);
 	dentry->next   = dentry;
 	dentry->prev   = dentry;
 	dentry->parent = dentry;
-	INIT_LIST_HEAD(&dentry->link_group_list);
+
 	return dentry;
 err:
 	FREE(dentry);
@@ -602,78 +676,94 @@ err:
 	return NULL;
 }
 
-void dentry_free_ads_entries(struct dentry *dentry)
+
+static struct dentry *__new_dentry_with_inode(const char *name, bool timeless)
 {
-	for (u16 i = 0; i < dentry->num_ads; i++)
-		destroy_ads_entry(&dentry->ads_entries[i]);
-	FREE(dentry->ads_entries);
-	dentry->ads_entries = NULL;
-	dentry->num_ads = 0;
+	struct dentry *dentry;
+	dentry = new_dentry(name);
+	if (dentry) {
+		if (timeless)
+			dentry->inode = new_timeless_inode();
+		else
+			dentry->inode = new_inode();
+		if (dentry->inode) {
+			inode_add_dentry(dentry, dentry->inode);
+		} else {
+			free_dentry(dentry);
+			dentry = NULL;
+		}
+	}
+	return dentry;
 }
 
-static void __destroy_dentry(struct dentry *dentry)
+struct dentry *new_dentry_with_timeless_inode(const char *name)
 {
-	FREE(dentry->file_name);
-	FREE(dentry->file_name_utf8);
-	FREE(dentry->short_name);
-	FREE(dentry->full_path_utf8);
-	FREE(dentry->extracted_file);
+	return __new_dentry_with_inode(name, true);
 }
 
-/* Frees a WIM dentry. */
-void free_dentry(struct dentry *dentry)
+struct dentry *new_dentry_with_inode(const char *name)
 {
-	wimlib_assert(dentry);
-	__destroy_dentry(dentry);
-	/* Don't destroy the ADS entries if they "belong" to a different dentry
-	 * */
-	if (dentry->ads_entries_status != ADS_ENTRIES_USER)
-		dentry_free_ads_entries(dentry);
-	FREE(dentry);
+	return __new_dentry_with_inode(name, false);
 }
 
-/* Like free_dentry(), but assigns a new ADS entries owner if this dentry was
- * the previous owner, and also deletes the dentry from its link_group_list */
-void put_dentry(struct dentry *dentry)
+
+/* Frees an inode. */
+void free_inode(struct inode *inode)
 {
-	if (dentry->ads_entries_status == ADS_ENTRIES_OWNER) {
-		struct dentry *new_owner;
-		list_for_each_entry(new_owner, &dentry->link_group_list,
-				    link_group_list)
-		{
-			if (new_owner->ads_entries_status == ADS_ENTRIES_USER) {
-				new_owner->ads_entries_status = ADS_ENTRIES_OWNER;
-				break;
+	if (inode) {
+		inode_free_ads_entries(inode);
+	#ifdef WITH_FUSE
+		wimlib_assert(inode->num_opened_fds == 0);
+		FREE(inode->fds);
+	#endif
+		FREE(inode);
+	}
+}
+
+/* Decrements link count on an inode and frees it if the link count reaches 0.
+ * */
+struct inode *put_inode(struct inode *inode)
+{
+	if (inode) {
+		wimlib_assert(inode->link_count);
+		if (--inode->link_count == 0) {
+		#ifdef WITH_FUSE
+			if (inode->num_opened_fds == 0)
+		#endif
+			{
+				free_inode(inode);
+				inode = NULL;
 			}
 		}
-		dentry->ads_entries_status = ADS_ENTRIES_USER;
 	}
-	list_del(&dentry->link_group_list);
-	free_dentry(dentry);
+	return inode;
 }
 
-
-/* Partically clones a dentry.
+/* Frees a WIM dentry. 
  *
- * Beware:
- * 	- memory for file names is not cloned (the pointers are all set to NULL
- * 	  and the lengths are set to zero)
- * 	- next, prev, and children pointers and not touched
- * 	- stream entries are not cloned (pointer left untouched).
+ * The inode is freed only if its link count is decremented to 0.
  */
-struct dentry *clone_dentry(struct dentry *old)
+struct inode *free_dentry(struct dentry *dentry)
 {
-	struct dentry *new = MALLOC(sizeof(struct dentry));
-	if (!new)
-		return NULL;
-	memcpy(new, old, sizeof(struct dentry));
-	new->file_name          = NULL;
-	new->file_name_len      = 0;
-	new->file_name_utf8     = NULL;
-	new->file_name_utf8_len = 0;
-	new->short_name         = NULL;
-	new->short_name_len     = 0;
-	return new;
+	wimlib_assert(dentry);
+	struct inode *inode;
+
+	FREE(dentry->file_name);
+	FREE(dentry->file_name_utf8);
+	FREE(dentry->short_name);
+	FREE(dentry->full_path_utf8);
+	inode = put_inode(dentry->inode);
+	FREE(dentry);
+	return inode;
+}
+
+void put_dentry(struct dentry *dentry)
+{
+	wimlib_assert(dentry);
+	wimlib_assert(dentry->refcnt);
+
+	if (--dentry->refcnt == 0)
+		free_dentry(dentry);
 }
 
 /* 
@@ -684,11 +774,13 @@ static int do_free_dentry(struct dentry *dentry, void *__lookup_table)
 {
 	struct lookup_table *lookup_table = __lookup_table;
 	struct lookup_table_entry *lte;
+	struct inode *inode = dentry->inode;
 	unsigned i;
 
 	if (lookup_table) {
-		for (i = 0; i <= dentry->num_ads; i++) {
-			lte = dentry_stream_lte(dentry, i, lookup_table);
+		wimlib_assert(inode->link_count);
+		for (i = 0; i <= inode->num_ads; i++) {
+			lte = inode_stream_lte(inode, i, lookup_table);
 			lte_decrement_refcnt(lte, lookup_table);
 		}
 	}
@@ -731,36 +823,35 @@ void link_dentry(struct dentry *dentry, struct dentry *parent)
 {
 	wimlib_assert(dentry_is_directory(parent));
 	dentry->parent = parent;
-	if (parent->children) {
+	if (parent->inode->children) {
 		/* Not an only child; link to siblings. */
-		dentry->next = parent->children;
-		dentry->prev = parent->children->prev;
+		dentry->next = parent->inode->children;
+		dentry->prev = parent->inode->children->prev;
 		dentry->next->prev = dentry;
 		dentry->prev->next = dentry;
 	} else {
 		/* Only child; link to parent. */
-		parent->children = dentry;
+		parent->inode->children = dentry;
 		dentry->next = dentry;
 		dentry->prev = dentry;
 	}
 }
 
 
-/* Unlink a dentry from the directory tree. 
+/* 
+ * Unlink a dentry from the directory tree. 
  *
- * Note: This merely removes it from the in-memory tree structure.  See
- * remove_dentry() in mount.c for a function implemented on top of this one that
- * frees the dentry and implements reference counting for the lookup table
- * entries. */
+ * Note: This merely removes it from the in-memory tree structure.
+ */
 void unlink_dentry(struct dentry *dentry)
 {
 	if (dentry_is_root(dentry))
 		return;
 	if (dentry_is_only_child(dentry)) {
-		dentry->parent->children = NULL;
+		dentry->parent->inode->children = NULL;
 	} else {
 		if (dentry_is_first_sibling(dentry))
-			dentry->parent->children = dentry->next;
+			dentry->parent->inode->children = dentry->next;
 		dentry->next->prev = dentry->prev;
 		dentry->prev->next = dentry->next;
 	}
@@ -846,8 +937,8 @@ static int calculate_dentry_statistics(struct dentry *dentry, void *arg)
 	else
 		++*stats->file_count;
 
-	for (unsigned i = 0; i <= dentry->num_ads; i++) {
-		lte = dentry_stream_lte(dentry, i, stats->lookup_table);
+	for (unsigned i = 0; i <= dentry->inode->num_ads; i++) {
+		lte = inode_stream_lte(dentry->inode, i, stats->lookup_table);
 		if (lte) {
 			*stats->total_bytes += wim_resource_size(lte);
 			if (++lte->out_refcnt == 1)
@@ -873,7 +964,7 @@ void calculate_dir_tree_statistics(struct dentry *root, struct lookup_table *tab
 	stats.file_count      = file_count_ret;
 	stats.total_bytes     = total_bytes_ret;
 	stats.hard_link_bytes = hard_link_bytes_ret;
-	for_lookup_table_entry(table, zero_out_refcnts, NULL);
+	for_lookup_table_entry(table, lte_zero_out_refcnt, NULL);
 	for_dentry_in_tree(root, calculate_dentry_statistics, &stats);
 }
 
@@ -883,8 +974,8 @@ void calculate_dir_tree_statistics(struct dentry *root, struct lookup_table *tab
  *
  * @p:	Pointer to buffer that starts with the first alternate stream entry.
  *
- * @dentry:	Dentry to load the alternate data streams into.
- * 			@dentry->num_ads must have been set to the number of
+ * @inode:	Inode to load the alternate data streams into.
+ * 			@inode->num_ads must have been set to the number of
  * 			alternate data streams that are expected.
  *
  * @remaining_size:	Number of bytes of data remaining in the buffer pointed
@@ -914,19 +1005,19 @@ void calculate_dir_tree_statistics(struct dentry *root, struct lookup_table *tab
  *
  * In addition, the entries are 8-byte aligned.
  *
- * Return 0 on success or nonzero on failure.  On success, dentry->ads_entries
- * is set to an array of `struct ads_entry's of length dentry->num_ads.  On
- * failure, @dentry is not modified.
+ * Return 0 on success or nonzero on failure.  On success, inode->ads_entries
+ * is set to an array of `struct ads_entry's of length inode->num_ads.  On
+ * failure, @inode is not modified.
  */
-static int read_ads_entries(const u8 *p, struct dentry *dentry,
+static int read_ads_entries(const u8 *p, struct inode *inode,
 			    u64 remaining_size)
 {
 	u16 num_ads;
 	struct ads_entry *ads_entries;
 	int ret;
 
- 	num_ads = dentry->num_ads;
- 	ads_entries = CALLOC(num_ads, sizeof(struct ads_entry));
+ 	num_ads = inode->num_ads;
+ 	ads_entries = CALLOC(num_ads, sizeof(inode->ads_entries[0]));
 	if (!ads_entries) {
 		ERROR("Could not allocate memory for %"PRIu16" "
 		      "alternate data stream entries", num_ads);
@@ -934,13 +1025,19 @@ static int read_ads_entries(const u8 *p, struct dentry *dentry,
 	}
 
 	for (u16 i = 0; i < num_ads; i++) {
-		struct ads_entry *cur_entry = &ads_entries[i];
+		struct ads_entry *cur_entry;
 		u64 length;
 		u64 length_no_padding;
 		u64 total_length;
 		size_t utf8_len;
 		const u8 *p_save = p;
 
+		cur_entry = &ads_entries[i];
+
+	#ifdef WITH_FUSE
+		ads_entries[i].stream_id = i + 1;
+	#endif
+
 		/* Read the base stream entry, excluding the stream name. */
 		if (remaining_size < WIM_ADS_ENTRY_DISK_SIZE) {
 			ERROR("Stream entries go past end of metadata resource");
@@ -1024,13 +1121,14 @@ static int read_ads_entries(const u8 *p, struct dentry *dentry,
 		else
 			remaining_size -= total_length;
 	}
-	dentry->ads_entries = ads_entries;
+	inode->ads_entries = ads_entries;
+#ifdef WITH_FUSE
+	inode->next_stream_id = inode->num_ads + 1;
+#endif
 	return 0;
 out_free_ads_entries:
-	for (u16 i = 0; i < num_ads; i++) {
-		FREE(ads_entries[i].stream_name);
-		FREE(ads_entries[i].stream_name_utf8);
-	}
+	for (u16 i = 0; i < num_ads; i++)
+		destroy_ads_entry(&ads_entries[i]);
 	FREE(ads_entries);
 	return ret;
 }
@@ -1062,6 +1160,7 @@ int read_dentry(const u8 metadata_resource[], u64 metadata_resource_len,
 	u16 file_name_len;
 	size_t file_name_utf8_len = 0;
 	int ret;
+	struct inode *inode = NULL;
 
 	dentry_common_init(dentry);
 
@@ -1106,8 +1205,12 @@ int read_dentry(const u8 metadata_resource[], u64 metadata_resource_len,
 		return WIMLIB_ERR_INVALID_DENTRY;
 	}
 
-	p = get_u32(p, &dentry->attributes);
-	p = get_u32(p, (u32*)&dentry->security_id);
+	inode = new_timeless_inode();
+	if (!inode)
+		return WIMLIB_ERR_NOMEM;
+
+	p = get_u32(p, &inode->attributes);
+	p = get_u32(p, (u32*)&inode->security_id);
 	p = get_u64(p, &dentry->subdir_offset);
 
 	/* 2 unused fields */
@@ -1115,11 +1218,11 @@ int read_dentry(const u8 metadata_resource[], u64 metadata_resource_len,
 	/*p = get_u64(p, &dentry->unused1);*/
 	/*p = get_u64(p, &dentry->unused2);*/
 
-	p = get_u64(p, &dentry->creation_time);
-	p = get_u64(p, &dentry->last_access_time);
-	p = get_u64(p, &dentry->last_write_time);
+	p = get_u64(p, &inode->creation_time);
+	p = get_u64(p, &inode->last_access_time);
+	p = get_u64(p, &inode->last_write_time);
 
-	p = get_bytes(p, SHA1_HASH_SIZE, dentry->hash);
+	p = get_bytes(p, SHA1_HASH_SIZE, inode->hash);
 	
 	/*
 	 * I don't know what's going on here.  It seems like M$ screwed up the
@@ -1127,20 +1230,20 @@ int read_dentry(const u8 metadata_resource[], u64 metadata_resource_len,
 	 * document it.  The WIM_HDR_FLAG_RP_FIX flag in the WIM header might
 	 * have something to do with this, but it's not documented.
 	 */
-	if (dentry->attributes & FILE_ATTRIBUTE_REPARSE_POINT) {
+	if (inode->attributes & FILE_ATTRIBUTE_REPARSE_POINT) {
 		/* ??? */
 		p += 4;
-		p = get_u32(p, &dentry->reparse_tag);
+		p = get_u32(p, &inode->reparse_tag);
 		p += 4;
 	} else {
-		p = get_u32(p, &dentry->reparse_tag);
-		p = get_u64(p, &dentry->link_group_id);
+		p = get_u32(p, &inode->reparse_tag);
+		p = get_u64(p, &inode->ino);
 	}
 
 	/* By the way, the reparse_reserved field does not actually exist (at
 	 * least when the file is not a reparse point) */
 	
-	p = get_u16(p, &dentry->num_ads);
+	p = get_u16(p, &inode->num_ads);
 
 	p = get_u16(p, &short_name_len);
 	p = get_u16(p, &file_name_len);
@@ -1249,7 +1352,7 @@ int read_dentry(const u8 metadata_resource[], u64 metadata_resource_len,
 	 * aligned boundary, and the alternate data stream entries are NOT
 	 * included in the dentry->length field for some reason.
 	 */
-	if (dentry->num_ads != 0) {
+	if (inode->num_ads != 0) {
 		if (calculated_size > metadata_resource_len - offset) {
 			ERROR("Not enough space in metadata resource for "
 			      "alternate stream entries");
@@ -1257,7 +1360,7 @@ int read_dentry(const u8 metadata_resource[], u64 metadata_resource_len,
 			goto out_free_short_name;
 		}
 		ret = read_ads_entries(&metadata_resource[offset + calculated_size],
-				       dentry,
+				       inode,
 				       metadata_resource_len - offset - calculated_size);
 		if (ret != 0)
 			goto out_free_short_name;
@@ -1265,6 +1368,7 @@ int read_dentry(const u8 metadata_resource[], u64 metadata_resource_len,
 
 	/* We've read all the data for this dentry.  Set the names and their
 	 * lengths, and we've done. */
+	dentry->inode              = inode;
 	dentry->file_name          = file_name;
 	dentry->file_name_utf8     = file_name_utf8;
 	dentry->short_name         = short_name;
@@ -1278,27 +1382,28 @@ out_free_file_name_utf8:
 	FREE(file_name_utf8);
 out_free_file_name:
 	FREE(file_name);
+out_free_inode:
+	free_inode(inode);
 	return ret;
 }
 
-/* Run some miscellaneous verifications on a WIM dentry */
-int verify_dentry(struct dentry *dentry, void *wim)
+int verify_inode(struct inode *inode, const WIMStruct *w)
 {
-	const WIMStruct *w = wim;
 	const struct lookup_table *table = w->lookup_table;
 	const struct wim_security_data *sd = wim_const_security_data(w);
+	const struct dentry *first_dentry = inode_first_dentry(inode);
 	int ret = WIMLIB_ERR_INVALID_DENTRY;
 
 	/* Check the security ID */
-	if (dentry->security_id < -1) {
+	if (inode->security_id < -1) {
 		ERROR("Dentry `%s' has an invalid security ID (%d)",
-			dentry->full_path_utf8, dentry->security_id);
+			first_dentry->full_path_utf8, inode->security_id);
 		goto out;
 	}
-	if (dentry->security_id >= sd->num_entries) {
+	if (inode->security_id >= sd->num_entries) {
 		ERROR("Dentry `%s' has an invalid security ID (%d) "
 		      "(there are only %u entries in the security table)",
-			dentry->full_path_utf8, dentry->security_id,
+			first_dentry->full_path_utf8, inode->security_id,
 			sd->num_entries);
 		goto out;
 	}
@@ -1307,32 +1412,82 @@ int verify_dentry(struct dentry *dentry, void *wim)
 	 * if the SHA1 message digest is all 0's, which indicates there is
 	 * intentionally no resource there.  */
 	if (w->hdr.total_parts == 1) {
-		for (unsigned i = 0; i <= dentry->num_ads; i++) {
+		for (unsigned i = 0; i <= inode->num_ads; i++) {
 			struct lookup_table_entry *lte;
 			const u8 *hash;
-			hash = dentry_stream_hash_unresolved(dentry, i);
+			hash = inode_stream_hash_unresolved(inode, i);
 			lte = __lookup_resource(table, hash);
 			if (!lte && !is_zero_hash(hash)) {
 				ERROR("Could not find lookup table entry for stream "
-				      "%u of dentry `%s'", i, dentry->full_path_utf8);
+				      "%u of dentry `%s'", i, first_dentry->full_path_utf8);
+				goto out;
+			}
+			if (lte && (lte->real_refcnt += inode->link_count) > lte->refcnt)
+			{
+			#ifdef ENABLE_ERROR_MESSAGES
+				WARNING("The following lookup table entry "
+					"has a reference count of %u, but",
+					lte->refcnt);
+				WARNING("We found %zu references to it",
+					lte->real_refcnt);
+				WARNING("(One dentry referencing it is at `%s')",
+					 first_dentry->full_path_utf8);
+
+				print_lookup_table_entry(lte);
+			#endif
+				/* Guess what!  install.wim for Windows 8
+				 * contains a stream with 2 dentries referencing
+				 * it, but the lookup table entry has reference
+				 * count of 1.  So we will need to handle this
+				 * case and not just make it be an error...  I'm
+				 * just setting the reference count to the
+				 * number of references we found.
+				 * (Unfortunately, even after doing this, the
+				 * reference count could be too low if it's also
+				 * referenced in other WIM images) */
+
+			#if 1
+				lte->refcnt = lte->real_refcnt;
+				WARNING("Fixing reference count");
+			#else
 				goto out;
+			#endif
 			}
 		}
 	}
 
 	/* Make sure there is only one un-named stream. */
 	unsigned num_unnamed_streams = 0;
-	for (unsigned i = 0; i <= dentry->num_ads; i++) {
+	for (unsigned i = 0; i <= inode->num_ads; i++) {
 		const u8 *hash;
-		hash = dentry_stream_hash_unresolved(dentry, i);
-		if (!dentry_stream_name_len(dentry, i) && !is_zero_hash(hash))
+		hash = inode_stream_hash_unresolved(inode, i);
+		if (!inode_stream_name_len(inode, i) && !is_zero_hash(hash))
 			num_unnamed_streams++;
 	}
 	if (num_unnamed_streams > 1) {
 		ERROR("Dentry `%s' has multiple (%u) un-named streams", 
-		      dentry->full_path_utf8, num_unnamed_streams);
+		      first_dentry->full_path_utf8, num_unnamed_streams);
 		goto out;
 	}
+	inode->verified = true;
+	ret = 0;
+out:
+	return ret;
+}
+
+
+/* Run some miscellaneous verifications on a WIM dentry */
+int verify_dentry(struct dentry *dentry, void *wim)
+{
+	const WIMStruct *w = wim;
+	const struct inode *inode = dentry->inode;
+	int ret = WIMLIB_ERR_INVALID_DENTRY;
+
+	if (!dentry->inode->verified) {
+		ret = verify_inode(dentry->inode, w);
+		if (ret != 0)
+			goto out;
+	}
 
 	/* Cannot have a short name but no long name */
 	if (dentry->short_name_len && !dentry->file_name_len) {
@@ -1352,8 +1507,8 @@ int verify_dentry(struct dentry *dentry, void *wim)
 
 #if 0
 	/* Check timestamps */
-	if (dentry->last_access_time < dentry->creation_time ||
-	    dentry->last_write_time < dentry->creation_time) {
+	if (inode->last_access_time < inode->creation_time ||
+	    inode->last_write_time < inode->creation_time) {
 		WARNING("Dentry `%s' was created after it was last accessed or "
 		      "written to", dentry->full_path_utf8);
 	}
@@ -1376,6 +1531,7 @@ static u8 *write_dentry(const struct dentry *dentry, u8 *p)
 {
 	u8 *orig_p = p;
 	const u8 *hash;
+	const struct inode *inode = dentry->inode;
 
 	/* We calculate the correct length of the dentry ourselves because the
 	 * dentry->length field may been set to an unexpected value from when we
@@ -1384,30 +1540,30 @@ static u8 *write_dentry(const struct dentry *dentry, u8 *p)
 	u64 length = dentry_correct_length(dentry);
 
 	p = put_u64(p, length);
-	p = put_u32(p, dentry->attributes);
-	p = put_u32(p, dentry->security_id);
+	p = put_u32(p, inode->attributes);
+	p = put_u32(p, inode->security_id);
 	p = put_u64(p, dentry->subdir_offset);
 	p = put_u64(p, 0); /* unused1 */
 	p = put_u64(p, 0); /* unused2 */
-	p = put_u64(p, dentry->creation_time);
-	p = put_u64(p, dentry->last_access_time);
-	p = put_u64(p, dentry->last_write_time);
-	hash = dentry_stream_hash(dentry, 0);
+	p = put_u64(p, inode->creation_time);
+	p = put_u64(p, inode->last_access_time);
+	p = put_u64(p, inode->last_write_time);
+	hash = inode_stream_hash(inode, 0);
 	p = put_bytes(p, SHA1_HASH_SIZE, hash);
-	if (dentry->attributes & FILE_ATTRIBUTE_REPARSE_POINT) {
+	if (inode->attributes & FILE_ATTRIBUTE_REPARSE_POINT) {
 		p = put_zeroes(p, 4);
-		p = put_u32(p, dentry->reparse_tag);
+		p = put_u32(p, inode->reparse_tag);
 		p = put_zeroes(p, 4);
 	} else {
 		u64 link_group_id;
 		p = put_u32(p, 0);
-		if (dentry->link_group_list.next == &dentry->link_group_list)
+		if (inode->link_count == 1)
 			link_group_id = 0;
 		else
-			link_group_id = dentry->link_group_id;
+			link_group_id = inode->ino;
 		p = put_u64(p, link_group_id);
 	}
-	p = put_u16(p, dentry->num_ads);
+	p = put_u16(p, inode->num_ads);
 	p = put_u16(p, dentry->short_name_len);
 	p = put_u16(p, dentry->file_name_len);
 	if (dentry->file_name_len) {
@@ -1427,15 +1583,15 @@ static u8 *write_dentry(const struct dentry *dentry, u8 *p)
 	/* Write the alternate data streams, if there are any.  Please see
 	 * read_ads_entries() for comments about the format of the on-disk
 	 * alternate data stream entries. */
-	for (u16 i = 0; i < dentry->num_ads; i++) {
-		p = put_u64(p, ads_entry_total_length(&dentry->ads_entries[i]));
+	for (u16 i = 0; i < inode->num_ads; i++) {
+		p = put_u64(p, ads_entry_total_length(&inode->ads_entries[i]));
 		p = put_u64(p, 0); /* Unused */
-		hash = dentry_stream_hash(dentry, i + 1);
+		hash = inode_stream_hash(inode, i + 1);
 		p = put_bytes(p, SHA1_HASH_SIZE, hash);
-		p = put_u16(p, dentry->ads_entries[i].stream_name_len);
-		if (dentry->ads_entries[i].stream_name_len) {
-			p = put_bytes(p, dentry->ads_entries[i].stream_name_len,
-					 (u8*)dentry->ads_entries[i].stream_name);
+		p = put_u16(p, inode->ads_entries[i].stream_name_len);
+		if (inode->ads_entries[i].stream_name_len) {
+			p = put_bytes(p, inode->ads_entries[i].stream_name_len,
+					 (u8*)inode->ads_entries[i].stream_name);
 			p = put_u16(p, 0);
 		}
 		p = put_zeroes(p, (8 - (p - orig_p) % 8) % 8);
@@ -1462,12 +1618,12 @@ static u8 *write_dentry_tree_recursive(const struct dentry *parent, u8 *p)
 	 * recursively writing the directory trees rooted at each of the child
 	 * dentries, since the on-disk dentries for a dentry's children are
 	 * always located at consecutive positions in the metadata resource! */
-	child = parent->children;
+	child = parent->inode->children;
 	if (child) {
 		do {
 			p = write_dentry(child, p);
 			child = child->next;
-		} while (child != parent->children);
+		} while (child != parent->inode->children);
 	}
 
 	/* write end of directory entry */
@@ -1478,7 +1634,7 @@ static u8 *write_dentry_tree_recursive(const struct dentry *parent, u8 *p)
 		do {
 			p = write_dentry_tree_recursive(child, p);
 			child = child->next;
-		} while (child != parent->children);
+		} while (child != parent->inode->children);
 	}
 	return p;
 }
@@ -1574,6 +1730,7 @@ int read_dentry_tree(const u8 metadata_resource[], u64 metadata_resource_len,
 
 		child->parent = dentry;
 		prev_child = child;
+		inode_add_dentry(child, child->inode);
 
 		/* If there are children of this child, call this procedure
 		 * recursively. */
@@ -1598,6 +1755,6 @@ int read_dentry_tree(const u8 metadata_resource[], u64 metadata_resource_len,
 		prev_child->next = first_child;
 		first_child->prev = prev_child;
 	}
-	dentry->children = first_child;
+	dentry->inode->children = first_child;
 	return ret;
 }