X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=src%2Fmount_image.c;h=41478d92a43dd8566c83c53a3f15bc35ff48c01a;hp=afb090501e004e6769ad134715cf5b70abeed756;hb=dabcd6fe9a32f58709c513d6bf641773baa8f6aa;hpb=4498586932ab670cf4791d8cf991d9b3e0ce1545

diff --git a/src/mount_image.c b/src/mount_image.c
index afb09050..41478d92 100644
--- a/src/mount_image.c
+++ b/src/mount_image.c
@@ -26,15 +26,32 @@
  * along with wimlib; if not, see http://www.gnu.org/licenses/.
  */
 
-#include "wimlib_internal.h"
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include "wimlib.h"
+#include "wimlib/error.h"
 
 #ifdef WITH_FUSE
 
-#include "buffer_io.h"
-#include "lookup_table.h"
-#include "sha1.h"
-#include "timestamp.h"
-#include "xml.h"
+#ifdef __WIN32__
+#  error "FUSE mount not supported on Win32!  Please configure --without-fuse"
+#endif
+
+#include "wimlib/encoding.h"
+#include "wimlib/file_io.h"
+#include "wimlib/dentry.h"
+#include "wimlib/inode.h"
+#include "wimlib/lookup_table.h"
+#include "wimlib/metadata.h"
+#include "wimlib/paths.h"
+#include "wimlib/reparse.h"
+#include "wimlib/resource.h"
+#include "wimlib/timestamp.h"
+#include "wimlib/version.h"
+#include "wimlib/write.h"
+#include "wimlib/xml.h"
 
 #include <errno.h>
 #include <ftw.h>
@@ -64,7 +81,7 @@
 struct wimfs_fd {
 	struct wim_inode *f_inode;
 	struct wim_lookup_table_entry *f_lte;
-	int staging_fd;
+	struct filedes staging_fd;
 	u16 idx;
 	u32 stream_id;
 };
@@ -94,18 +111,15 @@ struct wimfs_context {
 	 * filesystem anyway. */
 	u64 next_ino;
 
-	/* List of lookup table entries for files in the staging directory */
-	struct list_head staging_list;
-
 	/* List of inodes in the mounted image */
-	struct hlist_head *image_inode_list;
+	struct list_head *image_inode_list;
 
 	/* Name and message queue descriptors for message queues between the
 	 * filesystem daemon process and the unmount process.  These are used
 	 * when the filesystem is unmounted and the process running
-	 * wimlib_unmount_image() (i.e. the `imagex unmount' command) needs to
-	 * communicate with the filesystem daemon running fuse_main() (i.e. the
-	 * daemon created by the `imagex mount' or `imagex mountrw' commands */
+	 * wimlib_unmount_image() needs to communicate with the filesystem
+	 * daemon running fuse_main() (i.e. the process created by a call to
+	 * wimlib_mount_image().  */
 	char *unmount_to_daemon_mq_name;
 	char *daemon_to_unmount_mq_name;
 	mqd_t unmount_to_daemon_mq;
@@ -118,40 +132,40 @@ struct wimfs_context {
 	bool have_status;
 };
 
-static void init_wimfs_context(struct wimfs_context *ctx)
+static void
+init_wimfs_context(struct wimfs_context *ctx)
 {
 	memset(ctx, 0, sizeof(*ctx));
 	ctx->unmount_to_daemon_mq = (mqd_t)-1;
 	ctx->daemon_to_unmount_mq = (mqd_t)-1;
-	INIT_LIST_HEAD(&ctx->staging_list);
 }
 
 #define WIMFS_CTX(fuse_ctx) ((struct wimfs_context*)(fuse_ctx)->private_data)
 
-static inline struct wimfs_context *wimfs_get_context()
+static inline struct wimfs_context *
+wimfs_get_context(void)
 {
 	return WIMFS_CTX(fuse_get_context());
 }
 
-static inline WIMStruct *wimfs_get_WIMStruct()
+static inline WIMStruct *
+wimfs_get_WIMStruct(void)
 {
 	return wimfs_get_context()->wim;
 }
 
-static inline bool wimfs_ctx_readonly(const struct wimfs_context *ctx)
-{
-	return (ctx->mount_flags & WIMLIB_MOUNT_FLAG_READWRITE) == 0;
-}
-
-static inline int get_lookup_flags(const struct wimfs_context *ctx)
+static inline int
+get_lookup_flags(const struct wimfs_context *ctx)
 {
 	return ctx->default_lookup_flags;
 }
 
 /* Returns nonzero if write permission is requested on the file open flags */
-static inline int flags_writable(int open_flags)
+static inline int
+flags_writable(int open_flags)
 {
-	return open_flags & (O_RDWR | O_WRONLY);
+	int accmode = (open_flags & O_ACCMODE);
+	return (accmode == O_RDWR || accmode == O_WRONLY);
 }
 
 /*
@@ -161,22 +175,19 @@ static inline int flags_writable(int open_flags)
  * @stream_id:	ID of the stream we're opening
  * @lte:	Lookup table entry for the stream (may be NULL)
  * @fd_ret:	Return the allocated file descriptor if successful.
- * @readonly:	True if this is a read-only mount.
  *
  * Return 0 iff successful or error code if unsuccessful.
  */
-static int alloc_wimfs_fd(struct wim_inode *inode,
-			  u32 stream_id,
-			  struct wim_lookup_table_entry *lte,
-			  struct wimfs_fd **fd_ret,
-			  bool readonly)
+static int
+alloc_wimfs_fd(struct wim_inode *inode,
+	       u32 stream_id,
+	       struct wim_lookup_table_entry *lte,
+	       struct wimfs_fd **fd_ret)
 {
 	static const u16 fds_per_alloc = 8;
 	static const u16 max_fds = 0xffff;
 	int ret;
 
-	pthread_mutex_lock(&inode->i_mutex);
-
 	DEBUG("Allocating fd for stream ID %u from inode %#"PRIx64" "
 	      "(open = %u, allocated = %u)",
 	      stream_id, inode->i_ino, inode->i_num_opened_fds,
@@ -212,15 +223,15 @@ static int alloc_wimfs_fd(struct wim_inode *inode,
 				ret = -ENOMEM;
 				break;
 			}
-			fd->f_inode    = inode;
-			fd->f_lte      = lte;
-			fd->staging_fd = -1;
-			fd->idx        = i;
-			fd->stream_id  = stream_id;
-			*fd_ret        = fd;
-			inode->i_fds[i]  = fd;
+			fd->f_inode     = inode;
+			fd->f_lte       = lte;
+			filedes_invalidate(&fd->staging_fd);
+			fd->idx         = i;
+			fd->stream_id   = stream_id;
+			*fd_ret         = fd;
+			inode->i_fds[i] = fd;
 			inode->i_num_opened_fds++;
-			if (lte && !readonly)
+			if (lte)
 				lte->num_opened_fds++;
 			DEBUG("Allocated fd (idx = %u)", fd->idx);
 			ret = 0;
@@ -228,16 +239,13 @@ static int alloc_wimfs_fd(struct wim_inode *inode,
 		}
 	}
 out:
-	pthread_mutex_unlock(&inode->i_mutex);
 	return ret;
 }
 
-static void inode_put_fd(struct wim_inode *inode, struct wimfs_fd *fd)
+static void
+inode_put_fd(struct wim_inode *inode, struct wimfs_fd *fd)
 {
 	wimlib_assert(inode != NULL);
-
-	pthread_mutex_lock(&inode->i_mutex);
-
 	wimlib_assert(fd->f_inode == inode);
 	wimlib_assert(inode->i_num_opened_fds != 0);
 	wimlib_assert(fd->idx < inode->i_num_allocated_fds);
@@ -245,15 +253,17 @@ static void inode_put_fd(struct wim_inode *inode, struct wimfs_fd *fd)
 
 	inode->i_fds[fd->idx] = NULL;
 	FREE(fd);
-	if (--inode->i_num_opened_fds == 0 && inode->i_nlink == 0) {
-		pthread_mutex_unlock(&inode->i_mutex);
-		free_inode(inode);
-	} else {
-		pthread_mutex_unlock(&inode->i_mutex);
+	if (--inode->i_num_opened_fds == 0) {
+		FREE(inode->i_fds);
+		inode->i_fds = NULL;
+		inode->i_num_allocated_fds = 0;
+		if (inode->i_nlink == 0)
+			free_inode(inode);
 	}
 }
 
-static int lte_put_fd(struct wim_lookup_table_entry *lte, struct wimfs_fd *fd)
+static int
+lte_put_fd(struct wim_lookup_table_entry *lte, struct wimfs_fd *fd)
 {
 	wimlib_assert(fd->f_lte == lte);
 
@@ -263,9 +273,9 @@ static int lte_put_fd(struct wim_lookup_table_entry *lte, struct wimfs_fd *fd)
 	/* Close staging file descriptor if needed. */
 
 	if (lte->resource_location == RESOURCE_IN_STAGING_FILE
-	     && fd->staging_fd != -1)
+	     && filedes_valid(&fd->staging_fd))
 	{
-		if (close(fd->staging_fd) != 0) {
+		if (filedes_close(&fd->staging_fd)) {
 			ERROR_WITH_ERRNO("Failed to close staging file");
 			return -errno;
 		}
@@ -275,35 +285,46 @@ static int lte_put_fd(struct wim_lookup_table_entry *lte, struct wimfs_fd *fd)
 }
 
 /* Close a file descriptor. */
-static int close_wimfs_fd(struct wimfs_fd *fd)
+static int
+close_wimfs_fd(struct wimfs_fd *fd)
 {
 	int ret;
 	DEBUG("Closing fd (ino = %#"PRIx64", opened = %u, allocated = %u)",
 	      fd->f_inode->i_ino, fd->f_inode->i_num_opened_fds,
 	      fd->f_inode->i_num_allocated_fds);
 	ret = lte_put_fd(fd->f_lte, fd);
-	if (ret != 0)
+	if (ret)
 		return ret;
 
 	inode_put_fd(fd->f_inode, fd);
 	return 0;
 }
 
+static mode_t
+fuse_mask_mode(mode_t mode, struct fuse_context *fuse_ctx)
+{
+#if FUSE_MAJOR_VERSION > 2 || (FUSE_MAJOR_VERSION == 2 && FUSE_MINOR_VERSION >= 8)
+	mode &= ~fuse_ctx->umask;
+#endif
+	return mode;
+}
+
 /*
  * Add a new dentry with a new inode to a WIM image.
  *
  * Returns 0 on success, or negative error number on failure.
  */
-static int create_dentry(struct fuse_context *fuse_ctx,const char *path,
-			 mode_t mode, int attributes,
-			 struct wim_dentry **dentry_ret)
+static int
+create_dentry(struct fuse_context *fuse_ctx, const char *path,
+	      mode_t mode, int attributes, struct wim_dentry **dentry_ret)
 {
 	struct wim_dentry *parent;
 	struct wim_dentry *new;
 	const char *basename;
 	struct wimfs_context *wimfs_ctx = WIMFS_CTX(fuse_ctx);
+	int ret;
 
-	parent = get_parent_dentry(wimfs_ctx->wim, path);
+	parent = get_parent_dentry(wimfs_ctx->wim, path, WIMLIB_CASE_SENSITIVE);
 	if (!parent)
 		return -errno;
 
@@ -311,12 +332,12 @@ static int create_dentry(struct fuse_context *fuse_ctx,const char *path,
 		return -ENOTDIR;
 
 	basename = path_basename(path);
-	if (get_dentry_child_with_name(parent, basename))
+	if (get_dentry_child_with_name(parent, basename, WIMLIB_CASE_SENSITIVE))
 		return -EEXIST;
 
-	new = new_dentry_with_inode(basename);
-	if (!new)
-		return -errno;
+	ret = new_dentry_with_inode(basename, &new);
+	if (ret)
+		return -ENOMEM;
 
 	new->d_inode->i_resolved = 1;
 	new->d_inode->i_ino = wimfs_ctx->next_ino++;
@@ -326,7 +347,7 @@ static int create_dentry(struct fuse_context *fuse_ctx,const char *path,
 		if (inode_set_unix_data(new->d_inode,
 					fuse_ctx->uid,
 					fuse_ctx->gid,
-					mode & ~fuse_ctx->umask,
+					fuse_mask_mode(mode, fuse_ctx),
 					wimfs_ctx->wim->lookup_table,
 					UNIX_DATA_ALL | UNIX_DATA_CREATE))
 		{
@@ -335,12 +356,23 @@ static int create_dentry(struct fuse_context *fuse_ctx,const char *path,
 		}
 	}
 	dentry_add_child(parent, new);
-	hlist_add_head(&new->d_inode->i_hlist, wimfs_ctx->image_inode_list);
+	list_add_tail(&new->d_inode->i_list, wimfs_ctx->image_inode_list);
 	if (dentry_ret)
 		*dentry_ret = new;
 	return 0;
 }
 
+static struct wim_inode *
+wim_pathname_to_inode(WIMStruct *wim, const tchar *path)
+{
+	struct wim_dentry *dentry;
+	dentry = get_dentry(wim, path, WIMLIB_CASE_SENSITIVE);
+	if (dentry)
+		return dentry->d_inode;
+	else
+		return NULL;
+}
+
 /* Remove a dentry from a mounted WIM image; i.e. remove an alias for the
  * corresponding inode.
  *
@@ -353,8 +385,9 @@ static int create_dentry(struct fuse_context *fuse_ctx,const char *path,
  * descriptors and no references remaining, it is freed, and the corresponding
  * staging file is unlinked.
  */
-static void remove_dentry(struct wim_dentry *dentry,
-			  struct wim_lookup_table *lookup_table)
+static void
+remove_dentry(struct wim_dentry *dentry,
+	      struct wim_lookup_table *lookup_table)
 {
 	struct wim_inode *inode = dentry->d_inode;
 	struct wim_lookup_table_entry *lte;
@@ -366,10 +399,11 @@ static void remove_dentry(struct wim_dentry *dentry,
 			lte_decrement_refcnt(lte, lookup_table);
 	}
 	unlink_dentry(dentry);
-	put_dentry(dentry);
+	free_dentry(dentry);
 }
 
-static mode_t inode_default_unix_mode(const struct wim_inode *inode)
+static mode_t
+inode_default_unix_mode(const struct wim_inode *inode)
 {
 	if (inode_is_symlink(inode))
 		return S_IFLNK | 0777;
@@ -384,9 +418,10 @@ static mode_t inode_default_unix_mode(const struct wim_inode *inode)
  * 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. */
-static int inode_to_stbuf(const struct wim_inode *inode,
-			  const struct wim_lookup_table_entry *lte,
-			  struct stat *stbuf)
+static int
+inode_to_stbuf(const struct wim_inode *inode,
+	       const struct wim_lookup_table_entry *lte,
+	       struct stat *stbuf)
 {
 	const struct wimfs_context *ctx = wimfs_get_context();
 
@@ -404,29 +439,31 @@ static int inode_to_stbuf(const struct wim_inode *inode,
 	}
 	stbuf->st_ino = (ino_t)inode->i_ino;
 	stbuf->st_nlink = inode->i_nlink;
-	if (lte) {
-		if (lte->resource_location == RESOURCE_IN_STAGING_FILE) {
-			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 {
+	if (lte)
+		stbuf->st_size = lte->size;
+	else
 		stbuf->st_size = 0;
-	}
-
+#ifdef HAVE_STAT_NANOSECOND_PRECISION
+	stbuf->st_atim = wim_timestamp_to_timespec(inode->i_last_access_time);
+	stbuf->st_mtim = wim_timestamp_to_timespec(inode->i_last_write_time);
+	stbuf->st_ctim = stbuf->st_mtim;
+#else
 	stbuf->st_atime = wim_timestamp_to_unix(inode->i_last_access_time);
 	stbuf->st_mtime = wim_timestamp_to_unix(inode->i_last_write_time);
-	stbuf->st_ctime = wim_timestamp_to_unix(inode->i_creation_time);
+	stbuf->st_ctime = stbuf->st_mtime;
+#endif
 	stbuf->st_blocks = (stbuf->st_size + 511) / 512;
 	return 0;
 }
 
+static void
+touch_inode(struct wim_inode *inode)
+{
+	u64 now = get_wim_timestamp();
+	inode->i_last_access_time = now;
+	inode->i_last_write_time = now;
+}
+
 /* Creates a new staging file and returns its file descriptor opened for
  * writing.
  *
@@ -439,7 +476,8 @@ static int inode_to_stbuf(const struct wim_inode *inode,
  * On success, returns the file descriptor for the staging file, opened for
  * writing.  On failure, returns -1 and sets errno.
  */
-static int create_staging_file(char **name_ret, struct wimfs_context *ctx)
+static int
+create_staging_file(char **name_ret, struct wimfs_context *ctx)
 {
 	size_t name_len;
 	char *name;
@@ -450,7 +488,7 @@ static int create_staging_file(char **name_ret, struct wimfs_context *ctx)
 	static const size_t STAGING_FILE_NAME_LEN = 20;
 
 	name_len = ctx->staging_dir_name_len + 1 + STAGING_FILE_NAME_LEN;
- 	name = MALLOC(name_len + 1);
+	name = MALLOC(name_len + 1);
 	if (!name) {
 		errno = ENOMEM;
 		return -1;
@@ -506,11 +544,12 @@ static int create_staging_file(char **name_ret, struct wimfs_context *ctx)
  *
  * Returns 0 on success or a negative error code on failure.
  */
-static int extract_resource_to_staging_dir(struct wim_inode *inode,
-					   u32 stream_id,
-					   struct wim_lookup_table_entry **lte,
-					   off_t size,
-					   struct wimfs_context *ctx)
+static int
+extract_resource_to_staging_dir(struct wim_inode *inode,
+				u32 stream_id,
+				struct wim_lookup_table_entry **lte,
+				off_t size,
+				struct wimfs_context *ctx)
 {
 	char *staging_file_name;
 	int ret;
@@ -533,8 +572,10 @@ static int extract_resource_to_staging_dir(struct wim_inode *inode,
 
 	/* Extract the stream to the staging file (possibly truncated) */
 	if (old_lte) {
-		extract_size = min(wim_resource_size(old_lte), size);
-		ret = extract_wim_resource_to_fd(old_lte, fd, extract_size);
+		struct filedes wimlib_fd;
+		filedes_init(&wimlib_fd, fd);
+		extract_size = min(old_lte->size, size);
+		ret = extract_stream_to_fd(old_lte, &wimlib_fd, extract_size);
 	} else {
 		ret = 0;
 		extract_size = 0;
@@ -603,15 +644,18 @@ static int extract_resource_to_staging_dir(struct wim_inode *inode,
 			struct wimfs_fd *fd = inode->i_fds[i];
 			if (fd) {
 				if (fd->stream_id == stream_id) {
+					int raw_fd;
+
 					wimlib_assert(fd->f_lte == old_lte);
-					wimlib_assert(fd->staging_fd == -1);
+					wimlib_assert(!filedes_valid(&fd->staging_fd));
 					fd->f_lte = new_lte;
 					new_lte->num_opened_fds++;
-					fd->staging_fd = open(staging_file_name, O_RDONLY);
-					if (fd->staging_fd == -1) {
+					raw_fd = open(staging_file_name, O_RDONLY);
+					if (raw_fd < 0) {
 						ret = -errno;
 						goto out_revert_fd_changes;
 					}
+					filedes_init(&fd->staging_fd, raw_fd);
 				}
 				j++;
 			}
@@ -624,21 +668,15 @@ static int extract_resource_to_staging_dir(struct wim_inode *inode,
 		}
 	}
 
-	new_lte->refcnt                       = inode->i_nlink;
-	new_lte->resource_location            = RESOURCE_IN_STAGING_FILE;
-	new_lte->staging_file_name            = staging_file_name;
-	new_lte->lte_inode                    = inode;
-	random_hash(new_lte->hash);
+	lte_put_resource(new_lte);
+	new_lte->refcnt              = inode->i_nlink;
+	new_lte->resource_location   = RESOURCE_IN_STAGING_FILE;
+	new_lte->staging_file_name   = staging_file_name;
+	new_lte->size                = size;
 
-	if (stream_id == 0)
-		inode->i_lte = new_lte;
-	else
-		for (u16 i = 0; i < inode->i_num_ads; i++)
-			if (inode->i_ads_entries[i].stream_id == stream_id)
-				inode->i_ads_entries[i].lte = new_lte;
-
-	lookup_table_insert(ctx->wim->lookup_table, new_lte);
-	list_add(&new_lte->staging_list, &ctx->staging_list);
+	add_unhashed_stream(new_lte, inode, stream_id,
+			    &wim_get_current_image_metadata(ctx->wim)->unhashed_streams);
+	*retrieve_lte_pointer(new_lte) = new_lte;
 	*lte = new_lte;
 	return 0;
 out_revert_fd_changes:
@@ -646,9 +684,9 @@ out_revert_fd_changes:
 		struct wimfs_fd *fd = inode->i_fds[i];
 		if (fd && fd->stream_id == stream_id && fd->f_lte == new_lte) {
 			fd->f_lte = old_lte;
-			if (fd->staging_fd != -1) {
-				close(fd->staging_fd);
-				fd->staging_fd = -1;
+			if (filedes_valid(&fd->staging_fd)) {
+				filedes_close(&fd->staging_fd);
+				filedes_invalidate(&fd->staging_fd);
 			}
 			j++;
 		}
@@ -664,7 +702,8 @@ out_delete_staging_file:
  * Creates a randomly named staging directory and saves its name in the
  * filesystem context structure.
  */
-static int make_staging_dir(struct wimfs_context *ctx, const char *user_prefix)
+static int
+make_staging_dir(struct wimfs_context *ctx, const char *user_prefix)
 {
 	static const size_t random_suffix_len = 10;
 	static const char *common_suffix = ".staging";
@@ -729,8 +768,9 @@ out:
 	return ret;
 }
 
-static int remove_file_or_directory(const char *fpath, const struct stat *sb,
-				    int typeflag, struct FTW *ftwbuf)
+static int
+remove_file_or_directory(const char *fpath, const struct stat *sb,
+			 int typeflag, struct FTW *ftwbuf)
 {
 	if (remove(fpath) == 0)
 		return 0;
@@ -743,7 +783,8 @@ static int remove_file_or_directory(const char *fpath, const struct stat *sb,
 /*
  * Deletes the staging directory and all the files contained in it.
  */
-static int delete_staging_dir(struct wimfs_context *ctx)
+static int
+delete_staging_dir(struct wimfs_context *ctx)
 {
 	int ret;
 	ret = nftw(ctx->staging_dir_name, remove_file_or_directory,
@@ -753,63 +794,8 @@ static int delete_staging_dir(struct wimfs_context *ctx)
 	return ret;
 }
 
-static void inode_update_lte_ptr(struct wim_inode *inode,
-				 struct wim_lookup_table_entry *old_lte,
-				 struct wim_lookup_table_entry *new_lte)
-{
-	if (inode->i_lte == old_lte) {
-		inode->i_lte = new_lte;
-	} else {
-		for (unsigned i = 0; i < inode->i_num_ads; i++) {
-			if (inode->i_ads_entries[i].lte == old_lte) {
-				inode->i_ads_entries[i].lte = new_lte;
-				break;
-			}
-		}
-	}
-}
-
-static int update_lte_of_staging_file(struct wim_lookup_table_entry *lte,
-				      struct wim_lookup_table *table)
-{
-	struct wim_lookup_table_entry *duplicate_lte;
-	int ret;
-	u8 hash[SHA1_HASH_SIZE];
-	struct stat stbuf;
-
-	ret = sha1sum(lte->staging_file_name, hash);
-	if (ret != 0)
-		return ret;
-	lookup_table_unlink(table, lte);
-	duplicate_lte = __lookup_resource(table, hash);
-	if (duplicate_lte) {
-		/* Merge duplicate lookup table entries */
-		duplicate_lte->refcnt += lte->refcnt;
-		inode_update_lte_ptr(lte->lte_inode, lte, duplicate_lte);
-		free_lookup_table_entry(lte);
-	} else {
-		if (stat(lte->staging_file_name, &stbuf) != 0) {
-			ERROR_WITH_ERRNO("Failed to stat `%s'", lte->staging_file_name);
-			return WIMLIB_ERR_STAT;
-		}
-		if (stbuf.st_size == 0) {
-			/* Zero-length stream.  No lookup table entry needed. */
-			inode_update_lte_ptr(lte->lte_inode, lte, NULL);
-			free_lookup_table_entry(lte);
-		} else {
-			BUILD_BUG_ON(&lte->file_on_disk != &lte->staging_file_name);
-			lte->resource_entry.original_size = stbuf.st_size;
-			lte->resource_entry.size = stbuf.st_size;
-			lte->resource_location = RESOURCE_IN_FILE_ON_DISK;
-			lte->file_on_disk_fp = NULL;
-			copy_hash(lte->hash, hash);
-			lookup_table_insert(table, lte);
-		}
-	}
-	return 0;
-}
-
-static int inode_close_fds(struct wim_inode *inode)
+static int
+inode_close_fds(struct wim_inode *inode)
 {
 	u16 num_opened_fds = inode->i_num_opened_fds;
 	for (u16 i = 0, j = 0; j < num_opened_fds; i++) {
@@ -826,38 +812,44 @@ static int inode_close_fds(struct wim_inode *inode)
 }
 
 /* Overwrites the WIM file, with changes saved. */
-static int rebuild_wim(struct wimfs_context *ctx, int write_flags,
-		       wimlib_progress_func_t progress_func)
+static int
+rebuild_wim(struct wimfs_context *ctx, int write_flags,
+	    wimlib_progress_func_t progress_func)
 {
 	int ret;
 	struct wim_lookup_table_entry *lte, *tmp;
-	WIMStruct *w = ctx->wim;
+	WIMStruct *wim = ctx->wim;
+	struct wim_image_metadata *imd = wim_get_current_image_metadata(ctx->wim);
 
 	DEBUG("Closing all staging file descriptors.");
-	list_for_each_entry_safe(lte, tmp, &ctx->staging_list, staging_list) {
-		ret = inode_close_fds(lte->lte_inode);
-		if (ret != 0)
+	image_for_each_unhashed_stream_safe(lte, tmp, imd) {
+		ret = inode_close_fds(lte->back_inode);
+		if (ret)
 			return ret;
 	}
 
-	DEBUG("Calculating SHA1 checksums for all new staging files.");
-	list_for_each_entry_safe(lte, tmp, &ctx->staging_list, staging_list) {
-		ret = update_lte_of_staging_file(lte, w->lookup_table);
-		if (ret != 0)
-			return ret;
+	DEBUG("Freeing entries for zero-length streams");
+	image_for_each_unhashed_stream_safe(lte, tmp, imd) {
+		wimlib_assert(lte->unhashed);
+		if (lte->size == 0) {
+			struct wim_lookup_table_entry **back_ptr;
+			back_ptr = retrieve_lte_pointer(lte);
+			*back_ptr = NULL;
+			list_del(&lte->unhashed_list);
+			free_lookup_table_entry(lte);
+		}
 	}
 
-	xml_update_image_info(w, w->current_image);
-	ret = wimlib_overwrite(w, write_flags, 0, progress_func);
-	if (ret != 0)
+	xml_update_image_info(wim, wim->current_image);
+	ret = wimlib_overwrite(wim, write_flags, 0, progress_func);
+	if (ret)
 		ERROR("Failed to commit changes to mounted WIM image");
 	return ret;
 }
 
-
-
 /* Simple function that returns the concatenation of 2 strings. */
-static char *strcat_dup(const char *s1, const char *s2, size_t max_len)
+static char *
+strcat_dup(const char *s1, const char *s2, size_t max_len)
 {
 	size_t len = strlen(s1) + strlen(s2);
 	if (len > max_len)
@@ -869,8 +861,8 @@ static char *strcat_dup(const char *s1, const char *s2, size_t max_len)
 	return p;
 }
 
-static int set_message_queue_names(struct wimfs_context *ctx,
-				   const char *mount_dir)
+static int
+set_message_queue_names(struct wimfs_context *ctx, const char *mount_dir)
 {
 	static const char *u2d_prefix = "/wimlib-unmount-to-daemon-mq";
 	static const char *d2u_prefix = "/wimlib-daemon-to-unmount-mq";
@@ -878,7 +870,7 @@ static int set_message_queue_names(struct wimfs_context *ctx,
 	char *p;
 	int ret;
 
- 	dir_path = realpath(mount_dir, NULL);
+	dir_path = realpath(mount_dir, NULL);
 	if (!dir_path) {
 		ERROR_WITH_ERRNO("Failed to resolve path \"%s\"", mount_dir);
 		if (errno == ENOMEM)
@@ -914,7 +906,8 @@ out_free_dir_path:
 	return ret;
 }
 
-static void free_message_queue_names(struct wimfs_context *ctx)
+static void
+free_message_queue_names(struct wimfs_context *ctx)
 {
 	FREE(ctx->unmount_to_daemon_mq_name);
 	FREE(ctx->daemon_to_unmount_mq_name);
@@ -931,7 +924,8 @@ static void free_message_queue_names(struct wimfs_context *ctx)
  * @daemon specifies whether the calling process is the filesystem daemon or the
  * unmount process.
  */
-static int open_message_queues(struct wimfs_context *ctx, bool daemon)
+static int
+open_message_queues(struct wimfs_context *ctx, bool daemon)
 {
 	int unmount_to_daemon_mq_flags = O_WRONLY | O_CREAT;
 	int daemon_to_unmount_mq_flags = O_RDONLY | O_CREAT;
@@ -978,7 +972,8 @@ out:
 /* Try to determine the maximum message size of a message queue.  The return
  * value is the maximum message size, or a guess of 8192 bytes if it cannot be
  * determined. */
-static long mq_get_msgsize(mqd_t mq)
+static long
+mq_get_msgsize(mqd_t mq)
 {
 	static const char *msgsize_max_file = "/proc/sys/fs/mqueue/msgsize_max";
 	FILE *fp;
@@ -1007,11 +1002,12 @@ static long mq_get_msgsize(mqd_t mq)
 	return msgsize;
 }
 
-static int get_mailbox(mqd_t mq, long needed_msgsize, long *msgsize_ret,
-		       void **mailbox_ret)
+static int
+get_mailbox(mqd_t mq, long needed_msgsize, long *msgsize_ret,
+	    void **mailbox_ret)
 {
 	long msgsize;
-	char *mailbox;
+	void *mailbox;
 
 	msgsize = mq_get_msgsize(mq);
 
@@ -1031,14 +1027,16 @@ static int get_mailbox(mqd_t mq, long needed_msgsize, long *msgsize_ret,
 	return 0;
 }
 
-static void unlink_message_queues(struct wimfs_context *ctx)
+static void
+unlink_message_queues(struct wimfs_context *ctx)
 {
 	mq_unlink(ctx->unmount_to_daemon_mq_name);
 	mq_unlink(ctx->daemon_to_unmount_mq_name);
 }
 
 /* Closes the message queues, which are allocated in static variables */
-static void close_message_queues(struct wimfs_context *ctx)
+static void
+close_message_queues(struct wimfs_context *ctx)
 {
 	DEBUG("Closing message queues");
 	mq_close(ctx->unmount_to_daemon_mq);
@@ -1054,29 +1052,29 @@ struct unmount_msg_hdr {
 	u32 cur_version;
 	u32 msg_type;
 	u32 msg_size;
-} PACKED;
+} _packed_attribute;
 
 struct msg_unmount_request {
 	struct unmount_msg_hdr hdr;
 	u32 unmount_flags;
 	u8 want_progress_messages;
-} PACKED;
+} _packed_attribute;
 
 struct msg_daemon_info {
 	struct unmount_msg_hdr hdr;
 	pid_t daemon_pid;
 	u32 mount_flags;
-} PACKED;
+} _packed_attribute;
 
 struct msg_unmount_finished {
 	struct unmount_msg_hdr hdr;
-	int32_t status;
-} PACKED;
+	s32 status;
+} _packed_attribute;
 
 struct msg_write_streams_progress {
 	struct unmount_msg_hdr hdr;
 	union wimlib_progress_info info;
-} PACKED;
+} _packed_attribute;
 
 enum {
 	MSG_TYPE_UNMOUNT_REQUEST,
@@ -1103,8 +1101,8 @@ struct daemon_msg_handler_context {
 	struct wimfs_context *wimfs_ctx;
 };
 
-static int send_unmount_request_msg(mqd_t mq, int unmount_flags,
-				    u8 want_progress_messages)
+static int
+send_unmount_request_msg(mqd_t mq, int unmount_flags, u8 want_progress_messages)
 {
 	DEBUG("Sending unmount request msg");
 	struct msg_unmount_request msg = {
@@ -1125,7 +1123,8 @@ static int send_unmount_request_msg(mqd_t mq, int unmount_flags,
 	return 0;
 }
 
-static int send_daemon_info_msg(mqd_t mq, pid_t pid, int mount_flags)
+static int
+send_daemon_info_msg(mqd_t mq, pid_t pid, int mount_flags)
 {
 	DEBUG("Sending daemon info msg (pid = %d, mount_flags=%x)",
 	      pid, mount_flags);
@@ -1147,7 +1146,8 @@ static int send_daemon_info_msg(mqd_t mq, pid_t pid, int mount_flags)
 	return 0;
 }
 
-static void send_unmount_finished_msg(mqd_t mq, int status)
+static void
+send_unmount_finished_msg(mqd_t mq, int status)
 {
 	DEBUG("Sending unmount finished msg");
 	struct msg_unmount_finished msg = {
@@ -1163,8 +1163,9 @@ static void send_unmount_finished_msg(mqd_t mq, int status)
 		ERROR_WITH_ERRNO("Failed to send status to unmount process");
 }
 
-static int unmount_progress_func(enum wimlib_progress_msg msg,
-				 const union wimlib_progress_info *info)
+static int
+unmount_progress_func(enum wimlib_progress_msg msg,
+		      const union wimlib_progress_info *info)
 {
 	if (msg == WIMLIB_PROGRESS_MSG_WRITE_STREAMS) {
 		struct msg_write_streams_progress msg = {
@@ -1186,7 +1187,8 @@ static int unmount_progress_func(enum wimlib_progress_msg msg,
 	return 0;
 }
 
-static int msg_unmount_request_handler(const void *_msg, void *_handler_ctx)
+static int
+msg_unmount_request_handler(const void *_msg, void *_handler_ctx)
 {
 	const struct msg_unmount_request *msg = _msg;
 	struct daemon_msg_handler_context *handler_ctx = _handler_ctx;
@@ -1248,7 +1250,8 @@ out:
 	return MSG_BREAK_LOOP;
 }
 
-static int msg_daemon_info_handler(const void *_msg, void *_handler_ctx)
+static int
+msg_daemon_info_handler(const void *_msg, void *_handler_ctx)
 {
 	const struct msg_daemon_info *msg = _msg;
 	struct unmount_msg_handler_context *handler_ctx = _handler_ctx;
@@ -1265,8 +1268,8 @@ static int msg_daemon_info_handler(const void *_msg, void *_handler_ctx)
 	return 0;
 }
 
-static int msg_write_streams_progress_handler(const void *_msg,
-					      void *_handler_ctx)
+static int
+msg_write_streams_progress_handler(const void *_msg, void *_handler_ctx)
 {
 	const struct msg_write_streams_progress *msg = _msg;
 	struct unmount_msg_handler_context *handler_ctx = _handler_ctx;
@@ -1280,7 +1283,8 @@ static int msg_write_streams_progress_handler(const void *_msg,
 	return 0;
 }
 
-static int msg_unmount_finished_handler(const void *_msg, void *_handler_ctx)
+static int
+msg_unmount_finished_handler(const void *_msg, void *_handler_ctx)
 {
 	const struct msg_unmount_finished *msg = _msg;
 	struct unmount_msg_handler_context *handler_ctx = _handler_ctx;
@@ -1293,30 +1297,26 @@ static int msg_unmount_finished_handler(const void *_msg, void *_handler_ctx)
 	return MSG_BREAK_LOOP;
 }
 
-static int unmount_timed_out_cb(void *_handler_ctx)
+static int
+unmount_timed_out_cb(void *_handler_ctx)
 {
-	struct unmount_msg_handler_context *handler_ctx = _handler_ctx;
+	const struct unmount_msg_handler_context *handler_ctx = _handler_ctx;
 
-	if (handler_ctx->daemon_pid == 0) {
-		goto out_crashed;
-	} else {
-		kill(handler_ctx->daemon_pid, 0);
-		if (errno == ESRCH) {
-			goto out_crashed;
-		} else {
-			DEBUG("Filesystem daemon is still alive... "
-			      "Waiting another %d seconds\n",
-			      handler_ctx->hdr.timeout_seconds);
-			return 0;
-		}
+	if (handler_ctx->daemon_pid == 0 ||
+	    (kill(handler_ctx->daemon_pid, 0) != 0 && errno == ESRCH))
+	{
+		ERROR("The filesystem daemon has crashed!  Changes to the "
+		      "WIM may not have been commited.");
+		return WIMLIB_ERR_FILESYSTEM_DAEMON_CRASHED;
 	}
-out_crashed:
-	ERROR("The filesystem daemon has crashed!  Changes to the "
-	      "WIM may not have been commited.");
-	return WIMLIB_ERR_FILESYSTEM_DAEMON_CRASHED;
+
+	DEBUG("Filesystem daemon is still alive... "
+	      "Waiting another %d seconds", handler_ctx->hdr.timeout_seconds);
+	return 0;
 }
 
-static int daemon_timed_out_cb(void *_handler_ctx)
+static int
+daemon_timed_out_cb(void *_handler_ctx)
 {
 	ERROR("Timed out waiting for unmount request! "
 	      "Changes to the mounted WIM will not be committed.");
@@ -1346,10 +1346,11 @@ static const struct msg_handler_callbacks daemon_msg_handler_callbacks = {
 	},
 };
 
-static int receive_message(mqd_t mq,
-			   struct msg_handler_context_hdr *handler_ctx,
-			   const msg_handler_t msg_handlers[],
-			   long mailbox_size, void *mailbox)
+static int
+receive_message(mqd_t mq,
+		struct msg_handler_context_hdr *handler_ctx,
+		const msg_handler_t msg_handlers[],
+		long mailbox_size, void *mailbox)
 {
 	struct timeval now;
 	struct timespec timeout;
@@ -1391,9 +1392,10 @@ static int receive_message(mqd_t mq,
 	return ret;
 }
 
-static int message_loop(mqd_t mq,
-			const struct msg_handler_callbacks *callbacks,
-			struct msg_handler_context_hdr *handler_ctx)
+static int
+message_loop(mqd_t mq,
+	     const struct msg_handler_callbacks *callbacks,
+	     struct msg_handler_context_hdr *handler_ctx)
 {
 	static const size_t MAX_MSG_SIZE = 512;
 	long msgsize;
@@ -1441,7 +1443,8 @@ static int message_loop(mqd_t mq,
  *  not.  However, after that, the unmount process must wait for the filesystem
  *  daemon to finish writing the WIM file.
  */
-static int execute_fusermount(const char *dir)
+static int
+execute_fusermount(const char *dir, bool lazy)
 {
 	pid_t pid;
 	int ret;
@@ -1454,7 +1457,15 @@ static int execute_fusermount(const char *dir)
 	}
 	if (pid == 0) {
 		/* Child */
-		execlp("fusermount", "fusermount", "-u", dir, NULL);
+		char *argv[10];
+		char **argp = argv;
+		*argp++ = "fusermount";
+		if (lazy)
+			*argp++ = "-z";
+		*argp++ = "-u";
+		*argp++ = (char*)dir;
+		*argp = NULL;
+		execvp("fusermount", argv);
 		ERROR_WITH_ERRNO("Failed to execute `fusermount'");
 		exit(WIMLIB_ERR_FUSERMOUNT);
 	}
@@ -1492,7 +1503,14 @@ static int execute_fusermount(const char *dir)
 	}
 	if (pid == 0) {
 		/* Child */
-		execlp("umount", "umount", dir, NULL);
+		char *argv[10];
+		char **argp = argv;
+		*argp++ = "umount";
+		if (lazy)
+			*argp++ = "-l";
+		*argp++ = (char*)dir;
+		*argp = NULL;
+		execvp("umount", argv);
 		ERROR_WITH_ERRNO("Failed to execute `umount'");
 		exit(WIMLIB_ERR_FUSERMOUNT);
 	}
@@ -1504,21 +1522,17 @@ static int execute_fusermount(const char *dir)
 				 "terminate");
 		return WIMLIB_ERR_FUSERMOUNT;
 	}
-	if (status != 0) {
+
+	if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
 		ERROR("`umount' did not successfully complete");
 		return WIMLIB_ERR_FUSERMOUNT;
 	}
+
 	return 0;
 }
 
-#if 0
-static int wimfs_access(const char *path, int mask)
-{
-	return -ENOSYS;
-}
-#endif
-
-static int wimfs_chmod(const char *path, mode_t mask)
+static int
+wimfs_chmod(const char *path, mode_t mask)
 {
 	struct wim_dentry *dentry;
 	struct wimfs_context *ctx = wimfs_get_context();
@@ -1527,8 +1541,8 @@ static int wimfs_chmod(const char *path, mode_t mask)
 	if (!(ctx->mount_flags & WIMLIB_MOUNT_FLAG_UNIX_DATA))
 		return -EPERM;
 
-	ret = lookup_resource(ctx->wim, path, LOOKUP_FLAG_DIRECTORY_OK,
-			      &dentry, NULL, NULL);
+	ret = wim_pathname_to_stream(ctx->wim, path, LOOKUP_FLAG_DIRECTORY_OK,
+				     &dentry, NULL, NULL);
 	if (ret)
 		return ret;
 
@@ -1538,7 +1552,8 @@ static int wimfs_chmod(const char *path, mode_t mask)
 	return ret ? -ENOMEM : 0;
 }
 
-static int wimfs_chown(const char *path, uid_t uid, gid_t gid)
+static int
+wimfs_chown(const char *path, uid_t uid, gid_t gid)
 {
 	struct wim_dentry *dentry;
 	struct wimfs_context *ctx = wimfs_get_context();
@@ -1547,8 +1562,8 @@ static int wimfs_chown(const char *path, uid_t uid, gid_t gid)
 	if (!(ctx->mount_flags & WIMLIB_MOUNT_FLAG_UNIX_DATA))
 		return -EPERM;
 
-	ret = lookup_resource(ctx->wim, path, LOOKUP_FLAG_DIRECTORY_OK,
-			      &dentry, NULL, NULL);
+	ret = wim_pathname_to_stream(ctx->wim, path, LOOKUP_FLAG_DIRECTORY_OK,
+				     &dentry, NULL, NULL);
 	if (ret)
 		return ret;
 
@@ -1560,7 +1575,8 @@ static int wimfs_chown(const char *path, uid_t uid, gid_t gid)
 }
 
 /* Called when the filesystem is unmounted. */
-static void wimfs_destroy(void *p)
+static void
+wimfs_destroy(void *p)
 {
 	struct wimfs_context *wimfs_ctx = wimfs_get_context();
 	if (open_message_queues(wimfs_ctx, true) == 0) {
@@ -1576,49 +1592,41 @@ static void wimfs_destroy(void *p)
 	}
 }
 
-#if 0
-static int wimfs_fallocate(const char *path, int mode,
-			   off_t offset, off_t len, struct fuse_file_info *fi)
-{
-	struct wimfs_fd *fd = (struct wimfs_fd*)(uintptr_t)fi->fh;
-	wimlib_assert(fd->staging_fd != -1);
-	return fallocate(fd->staging_fd, mode, offset, len);
-}
-
-#endif
-
-static int wimfs_fgetattr(const char *path, struct stat *stbuf,
-			  struct fuse_file_info *fi)
+static int
+wimfs_fgetattr(const char *path, struct stat *stbuf,
+	       struct fuse_file_info *fi)
 {
 	struct wimfs_fd *fd = (struct wimfs_fd*)(uintptr_t)fi->fh;
 	return inode_to_stbuf(fd->f_inode, fd->f_lte, stbuf);
 }
 
-static int wimfs_ftruncate(const char *path, off_t size,
-			   struct fuse_file_info *fi)
+static int
+wimfs_ftruncate(const char *path, off_t size, struct fuse_file_info *fi)
 {
 	struct wimfs_fd *fd = (struct wimfs_fd*)(uintptr_t)fi->fh;
-	int ret = ftruncate(fd->staging_fd, size);
-	if (ret != 0)
+	int ret = ftruncate(fd->staging_fd.fd, size);
+	if (ret)
 		return -errno;
-	if (fd->f_lte && size < fd->f_lte->resource_entry.original_size)
-		fd->f_lte->resource_entry.original_size = size;
+	touch_inode(fd->f_inode);
+	fd->f_lte->size = size;
 	return 0;
 }
 
 /*
  * Fills in a `struct stat' that corresponds to a file or directory in the WIM.
  */
-static int wimfs_getattr(const char *path, struct stat *stbuf)
+static int
+wimfs_getattr(const char *path, struct stat *stbuf)
 {
 	struct wim_dentry *dentry;
 	struct wim_lookup_table_entry *lte;
 	int ret;
 	struct wimfs_context *ctx = wimfs_get_context();
 
-	ret = lookup_resource(ctx->wim, path,
-			      get_lookup_flags(ctx) | LOOKUP_FLAG_DIRECTORY_OK,
-			      &dentry, &lte, NULL);
+	ret = wim_pathname_to_stream(ctx->wim, path,
+				     get_lookup_flags(ctx) |
+					LOOKUP_FLAG_DIRECTORY_OK,
+				     &dentry, &lte, NULL);
 	if (ret != 0)
 		return ret;
 	return inode_to_stbuf(dentry->d_inode, lte, stbuf);
@@ -1626,20 +1634,21 @@ static int wimfs_getattr(const char *path, struct stat *stbuf)
 
 #ifdef ENABLE_XATTR
 /* Read an alternate data stream through the XATTR interface, or get its size */
-static int wimfs_getxattr(const char *path, const char *name, char *value,
-			  size_t size)
+static int
+wimfs_getxattr(const char *path, const char *name, char *value,
+	       size_t size)
 {
 	int ret;
 	struct wim_inode *inode;
 	struct wim_ads_entry *ads_entry;
-	size_t res_size;
+	u64 stream_size;
 	struct wim_lookup_table_entry *lte;
 	struct wimfs_context *ctx = wimfs_get_context();
 
 	if (!(ctx->mount_flags & WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_XATTR))
 		return -ENOTSUP;
 
-	if (strlen(name) < 5 || memcmp(name, "user.", 5) != 0)
+	if (strlen(name) <= 5 || memcmp(name, "user.", 5) != 0)
 		return -ENOATTR;
 	name += 5;
 
@@ -1652,34 +1661,36 @@ static int wimfs_getxattr(const char *path, const char *name, char *value,
 		return -ENOATTR;
 
 	lte = ads_entry->lte;
-	res_size = wim_resource_size(lte);
+	stream_size = lte->size;
 
 	if (size == 0)
-		return res_size;
+		return stream_size;
 
-	if (res_size > size)
+	if (stream_size > size)
 		return -ERANGE;
 
-	ret = read_full_wim_resource(lte, (u8*)value,
-				     WIMLIB_RESOURCE_FLAG_MULTITHREADED);
-	if (ret != 0)
-		return -EIO;
-
-	return res_size;
+	ret = read_full_stream_into_buf(lte, value);
+	if (ret) {
+		if (errno)
+			return -errno;
+		else
+			return -EIO;
+	}
+	return stream_size;
 }
 #endif
 
 /* Create a hard link */
-static int wimfs_link(const char *to, const char *from)
+static int
+wimfs_link(const char *to, const char *from)
 {
 	struct wim_dentry *from_dentry, *from_dentry_parent;
 	const char *link_name;
 	struct wim_inode *inode;
-	struct wim_lookup_table_entry *lte;
-	WIMStruct *w = wimfs_get_WIMStruct();
-	u16 i;
+	WIMStruct *wim = wimfs_get_WIMStruct();
+	int ret;
 
-	inode = wim_pathname_to_inode(w, to);
+	inode = wim_pathname_to_inode(wim, to);
 	if (!inode)
 		return -errno;
 
@@ -1687,40 +1698,39 @@ static int wimfs_link(const char *to, const char *from)
 				   FILE_ATTRIBUTE_REPARSE_POINT))
 		return -EPERM;
 
-	from_dentry_parent = get_parent_dentry(w, from);
+	from_dentry_parent = get_parent_dentry(wim, from, WIMLIB_CASE_SENSITIVE);
 	if (!from_dentry_parent)
 		return -errno;
 	if (!dentry_is_directory(from_dentry_parent))
 		return -ENOTDIR;
 
 	link_name = path_basename(from);
-	if (get_dentry_child_with_name(from_dentry_parent, link_name))
+	if (get_dentry_child_with_name(from_dentry_parent, link_name,
+				       WIMLIB_CASE_SENSITIVE))
 		return -EEXIST;
-	from_dentry = new_dentry(link_name);
-	if (!from_dentry)
-		return -errno;
 
-	inode_add_dentry(from_dentry, inode);
-	from_dentry->d_inode = inode;
-	inode->i_nlink++;
+	ret = new_dentry(link_name, &from_dentry);
+	if (ret)
+		return -ENOMEM;
 
-	for (i = 0; i <= inode->i_num_ads; i++) {
-		lte = inode_stream_lte_resolved(inode, i);
-		if (lte)
-			lte->refcnt++;
-	}
+	inode->i_nlink++;
+	inode_ref_streams(inode);
+	from_dentry->d_inode = inode;
+	inode_add_dentry(from_dentry, inode);
 	dentry_add_child(from_dentry_parent, from_dentry);
 	return 0;
 }
 
 #ifdef ENABLE_XATTR
-static int wimfs_listxattr(const char *path, char *list, size_t size)
+static int
+wimfs_listxattr(const char *path, char *list, size_t size)
 {
 	size_t needed_size;
 	struct wim_inode *inode;
 	struct wimfs_context *ctx = wimfs_get_context();
 	u16 i;
 	char *p;
+	bool size_only = (size == 0);
 
 	if (!(ctx->mount_flags & WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_XATTR))
 		return -ENOTSUP;
@@ -1731,36 +1741,51 @@ static int wimfs_listxattr(const char *path, char *list, size_t size)
 	if (!inode)
 		return -errno;
 
-	if (size == 0) {
-		needed_size = 0;
-		for (i = 0; i < inode->i_num_ads; i++)
-			needed_size += inode->i_ads_entries[i].stream_name_utf8_len + 6;
-		return needed_size;
-	} else {
-		p = list;
-		for (i = 0; i < inode->i_num_ads; i++) {
-			needed_size = inode->i_ads_entries[i].stream_name_utf8_len + 6;
-			if (needed_size > size)
+	p = list;
+	for (i = 0; i < inode->i_num_ads; i++) {
+
+		if (!ads_entry_is_named_stream(&inode->i_ads_entries[i]))
+			continue;
+
+		char *stream_name_mbs;
+		size_t stream_name_mbs_nbytes;
+		int ret;
+
+		ret = utf16le_to_tstr(inode->i_ads_entries[i].stream_name,
+				      inode->i_ads_entries[i].stream_name_nbytes,
+				      &stream_name_mbs,
+				      &stream_name_mbs_nbytes);
+		if (ret)
+			return -errno;
+
+		needed_size = stream_name_mbs_nbytes + 6;
+		if (!size_only) {
+			if (needed_size > size) {
+				FREE(stream_name_mbs);
 				return -ERANGE;
-			p += sprintf(p, "user.%s",
-				     inode->i_ads_entries[i].stream_name_utf8) + 1;
+			}
+			sprintf(p, "user.%s", stream_name_mbs);
 			size -= needed_size;
 		}
-		return p - list;
+		p += needed_size;
+		FREE(stream_name_mbs);
 	}
+	return p - list;
 }
 #endif
 
 
 /* Create a directory in the WIM image. */
-static int wimfs_mkdir(const char *path, mode_t mode)
+static int
+wimfs_mkdir(const char *path, mode_t mode)
 {
 	return create_dentry(fuse_get_context(), path, mode | S_IFDIR,
 			     FILE_ATTRIBUTE_DIRECTORY, NULL);
 }
 
 /* Create a regular file or alternate data stream in the WIM image. */
-static int wimfs_mknod(const char *path, mode_t mode, dev_t rdev)
+static int
+wimfs_mknod(const char *path, mode_t mode, dev_t rdev)
 {
 	const char *stream_name;
 	struct fuse_context *fuse_ctx = fuse_get_context();
@@ -1782,8 +1807,7 @@ static int wimfs_mknod(const char *path, mode_t mode, dev_t rdev)
 		inode = wim_pathname_to_inode(wimfs_ctx->wim, path);
 		if (!inode)
 			return -errno;
-		if (inode->i_attributes &
-		    (FILE_ATTRIBUTE_REPARSE_POINT | FILE_ATTRIBUTE_DIRECTORY))
+		if (inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT)
 			return -ENOENT;
 		if (inode_get_ads_entry(inode, stream_name, NULL))
 			return -EEXIST;
@@ -1798,9 +1822,9 @@ static int wimfs_mknod(const char *path, mode_t mode, dev_t rdev)
 	}
 }
 
-
 /* Open a file.  */
-static int wimfs_open(const char *path, struct fuse_file_info *fi)
+static int
+wimfs_open(const char *path, struct fuse_file_info *fi)
 {
 	struct wim_dentry *dentry;
 	struct wim_lookup_table_entry *lte;
@@ -1810,18 +1834,22 @@ static int wimfs_open(const char *path, struct fuse_file_info *fi)
 	u16 stream_idx;
 	u32 stream_id;
 	struct wimfs_context *ctx = wimfs_get_context();
+	struct wim_lookup_table_entry **back_ptr;
 
-	ret = lookup_resource(ctx->wim, path, get_lookup_flags(ctx),
-			      &dentry, &lte, &stream_idx);
-	if (ret != 0)
+	ret = wim_pathname_to_stream(ctx->wim, path, get_lookup_flags(ctx),
+				     &dentry, &lte, &stream_idx);
+	if (ret)
 		return ret;
 
 	inode = dentry->d_inode;
 
-	if (stream_idx == 0)
+	if (stream_idx == 0) {
 		stream_id = 0;
-	else
+		back_ptr = &inode->i_lte;
+	} else {
 		stream_id = inode->i_ads_entries[stream_idx - 1].stream_id;
+		back_ptr = &inode->i_ads_entries[stream_idx - 1].lte;
+	}
 
 	/* The file resource may be in the staging directory (read-write mounts
 	 * only) or in the WIM.  If it's in the staging directory, we need to
@@ -1832,45 +1860,49 @@ static int wimfs_open(const char *path, struct fuse_file_info *fi)
 
 	if (flags_writable(fi->flags) &&
             (!lte || lte->resource_location != RESOURCE_IN_STAGING_FILE)) {
-		u64 size = (lte) ? wim_resource_size(lte) : 0;
+		u64 size = (lte) ? lte->size : 0;
 		ret = extract_resource_to_staging_dir(inode, stream_id,
 						      &lte, size, ctx);
-		if (ret != 0)
+		if (ret)
 			return ret;
+		*back_ptr = lte;
 	}
 
-	ret = alloc_wimfs_fd(inode, stream_id, lte, &fd,
-			     wimfs_ctx_readonly(ctx));
-	if (ret != 0)
+	ret = alloc_wimfs_fd(inode, stream_id, lte, &fd);
+	if (ret)
 		return ret;
 
 	if (lte && lte->resource_location == RESOURCE_IN_STAGING_FILE) {
-		fd->staging_fd = open(lte->staging_file_name, fi->flags);
-		if (fd->staging_fd == -1) {
+		int raw_fd;
+
+		raw_fd = open(lte->staging_file_name, fi->flags);
+		if (raw_fd < 0) {
 			int errno_save = errno;
 			close_wimfs_fd(fd);
 			return -errno_save;
 		}
+		filedes_init(&fd->staging_fd, raw_fd);
 	}
 	fi->fh = (uintptr_t)fd;
 	return 0;
 }
 
 /* Opens a directory. */
-static int wimfs_opendir(const char *path, struct fuse_file_info *fi)
+static int
+wimfs_opendir(const char *path, struct fuse_file_info *fi)
 {
 	struct wim_inode *inode;
 	int ret;
 	struct wimfs_fd *fd = NULL;
 	struct wimfs_context *ctx = wimfs_get_context();
-	WIMStruct *w = ctx->wim;
+	WIMStruct *wim = ctx->wim;
 
-	inode = wim_pathname_to_inode(w, path);
+	inode = wim_pathname_to_inode(wim, path);
 	if (!inode)
 		return -errno;
 	if (!inode_is_directory(inode))
 		return -ENOTDIR;
-	ret = alloc_wimfs_fd(inode, 0, NULL, &fd, wimfs_ctx_readonly(ctx));
+	ret = alloc_wimfs_fd(inode, 0, NULL, &fd);
 	fi->fh = (uintptr_t)fd;
 	return ret;
 }
@@ -1879,44 +1911,55 @@ static int wimfs_opendir(const char *path, struct fuse_file_info *fi)
 /*
  * Read data from a file in the WIM or in the staging directory.
  */
-static int wimfs_read(const char *path, char *buf, size_t size,
-		      off_t offset, struct fuse_file_info *fi)
+static int
+wimfs_read(const char *path, char *buf, size_t size,
+	   off_t offset, struct fuse_file_info *fi)
 {
 	struct wimfs_fd *fd = (struct wimfs_fd*)(uintptr_t)fi->fh;
 	ssize_t ret;
+	u64 stream_size;
 
 	if (!fd)
 		return -EBADF;
 
-	if (!fd->f_lte) /* Empty stream with no lookup table entry */
+	if (size == 0)
 		return 0;
 
-	if (fd->f_lte->resource_location == RESOURCE_IN_STAGING_FILE) {
-		/* Read from staging file */
+	if (fd->f_lte)
+		stream_size = fd->f_lte->size;
+	else
+		stream_size = 0;
 
-		wimlib_assert(fd->f_lte->staging_file_name);
-		wimlib_assert(fd->staging_fd != -1);
+	if (offset > stream_size)
+		return -EOVERFLOW;
 
-		DEBUG("Seek to offset %"PRIu64, offset);
+	size = min(size, stream_size - offset);
+	if (size == 0)
+		return 0;
 
-		if (lseek(fd->staging_fd, offset, SEEK_SET) == -1)
-			return -errno;
-		ret = read(fd->staging_fd, buf, size);
+	switch (fd->f_lte->resource_location) {
+	case RESOURCE_IN_STAGING_FILE:
+		ret = raw_pread(&fd->staging_fd, buf, size, offset);
 		if (ret == -1)
-			return -errno;
-		return ret;
-	} else {
-		/* Read from WIM */
-		u64 res_size = wim_resource_size(fd->f_lte);
-		if (offset > res_size)
-			return -EOVERFLOW;
-		size = min(size, res_size - offset);
-		if (read_wim_resource(fd->f_lte, (u8*)buf,
-				      size, offset,
-				      WIMLIB_RESOURCE_FLAG_MULTITHREADED) != 0)
-			return -EIO;
-		return size;
+			ret = -errno;
+		break;
+	case RESOURCE_IN_WIM:
+		if (read_partial_wim_stream_into_buf(fd->f_lte, size,
+						     offset, buf))
+			ret = errno ? -errno : -EIO;
+		else
+			ret = size;
+		break;
+	case RESOURCE_IN_ATTACHED_BUFFER:
+		memcpy(buf, fd->f_lte->attached_buffer + offset, size);
+		ret = size;
+		break;
+	default:
+		ERROR("Invalid resource location");
+		ret = -EIO;
+		break;
 	}
+	return ret;
 }
 
 struct fill_params {
@@ -1924,17 +1967,32 @@ struct fill_params {
 	fuse_fill_dir_t filler;
 };
 
-static int dentry_fuse_fill(struct wim_dentry *dentry, void *arg)
+static int
+dentry_fuse_fill(struct wim_dentry *dentry, void *arg)
 {
 	struct fill_params *fill_params = arg;
-	return fill_params->filler(fill_params->buf, dentry->file_name_utf8,
-				   NULL, 0);
+
+	char *file_name_mbs;
+	size_t file_name_mbs_nbytes;
+	int ret;
+
+	ret = utf16le_to_tstr(dentry->file_name,
+			      dentry->file_name_nbytes,
+			      &file_name_mbs,
+			      &file_name_mbs_nbytes);
+	if (ret)
+		return -errno;
+
+	ret = fill_params->filler(fill_params->buf, file_name_mbs, NULL, 0);
+	FREE(file_name_mbs);
+	return ret;
 }
 
 /* Fills in the entries of the directory specified by @path using the
  * FUSE-provided function @filler.  */
-static int wimfs_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
-			 off_t offset, struct fuse_file_info *fi)
+static int
+wimfs_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
+	      off_t offset, struct fuse_file_info *fi)
 {
 	struct wimfs_fd *fd = (struct wimfs_fd*)(uintptr_t)fi->fh;
 	struct wim_inode *inode;
@@ -1957,7 +2015,8 @@ static int wimfs_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
 }
 
 
-static int wimfs_readlink(const char *path, char *buf, size_t buf_len)
+static int
+wimfs_readlink(const char *path, char *buf, size_t buf_len)
 {
 	struct wimfs_context *ctx = wimfs_get_context();
 	struct wim_inode *inode = wim_pathname_to_inode(ctx->wim, path);
@@ -1966,23 +2025,30 @@ static int wimfs_readlink(const char *path, char *buf, size_t buf_len)
 		return -errno;
 	if (!inode_is_symlink(inode))
 		return -EINVAL;
-
-	ret = inode_readlink(inode, buf, buf_len, ctx->wim,
-			     WIMLIB_RESOURCE_FLAG_MULTITHREADED);
-	if (ret > 0)
+	if (buf_len == 0)
+		return -EINVAL;
+	ret = wim_inode_readlink(inode, buf, buf_len - 1, NULL);
+	if (ret >= 0) {
+		wimlib_assert(ret <= buf_len - 1);
+		buf[ret] = '\0';
 		ret = 0;
+	} else if (ret == -ENAMETOOLONG) {
+		buf[buf_len - 1] = '\0';
+	}
 	return ret;
 }
 
 /* Close a file. */
-static int wimfs_release(const char *path, struct fuse_file_info *fi)
+static int
+wimfs_release(const char *path, struct fuse_file_info *fi)
 {
 	struct wimfs_fd *fd = (struct wimfs_fd*)(uintptr_t)fi->fh;
 	return close_wimfs_fd(fd);
 }
 
 /* Close a directory */
-static int wimfs_releasedir(const char *path, struct fuse_file_info *fi)
+static int
+wimfs_releasedir(const char *path, struct fuse_file_info *fi)
 {
 	struct wimfs_fd *fd = (struct wimfs_fd*)(uintptr_t)fi->fh;
 	return close_wimfs_fd(fd);
@@ -1990,7 +2056,8 @@ static int wimfs_releasedir(const char *path, struct fuse_file_info *fi)
 
 #ifdef ENABLE_XATTR
 /* Remove an alternate data stream through the XATTR interface */
-static int wimfs_removexattr(const char *path, const char *name)
+static int
+wimfs_removexattr(const char *path, const char *name)
 {
 	struct wim_inode *inode;
 	struct wim_ads_entry *ads_entry;
@@ -2017,69 +2084,21 @@ static int wimfs_removexattr(const char *path, const char *name)
 #endif
 
 /* Renames a file or directory.  See rename (3) */
-static int wimfs_rename(const char *from, const char *to)
+static int
+wimfs_rename(const char *from, const char *to)
 {
-	struct wim_dentry *src;
-	struct wim_dentry *dst;
-	struct wim_dentry *parent_of_dst;
-	WIMStruct *w = wimfs_get_WIMStruct();
-	int ret;
-
-	/* This rename() implementation currently only supports actual files
-	 * (not alternate data streams) */
-
-	src = get_dentry(w, from);
-	if (!src)
-		return -errno;
-
-	dst = get_dentry(w, to);
-
-	if (dst) {
-		/* Destination file exists */
-
-		if (src == dst) /* Same file */
-			return 0;
-
-		if (!dentry_is_directory(src)) {
-			/* Cannot rename non-directory to directory. */
-			if (dentry_is_directory(dst))
-				return -EISDIR;
-		} else {
-			/* Cannot rename directory to a non-directory or a non-empty
-			 * directory */
-			if (!dentry_is_directory(dst))
-				return -ENOTDIR;
-			if (inode_has_children(dst->d_inode))
-				return -ENOTEMPTY;
-		}
-		parent_of_dst = dst->parent;
-	} else {
-		/* Destination does not exist */
-		parent_of_dst = get_parent_dentry(w, to);
-		if (!parent_of_dst)
-			return -errno;
-
-		if (!dentry_is_directory(parent_of_dst))
-			return -ENOTDIR;
-	}
-
-	ret = set_dentry_name(src, path_basename(to));
-	if (ret != 0)
-		return -ENOMEM;
-	if (dst)
-		remove_dentry(dst, w->lookup_table);
-	unlink_dentry(src);
-	dentry_add_child(parent_of_dst, src);
-	return 0;
+	return rename_wim_path(wimfs_get_WIMStruct(), from, to,
+			       WIMLIB_CASE_SENSITIVE);
 }
 
 /* Remove a directory */
-static int wimfs_rmdir(const char *path)
+static int
+wimfs_rmdir(const char *path)
 {
 	struct wim_dentry *dentry;
-	WIMStruct *w = wimfs_get_WIMStruct();
+	WIMStruct *wim = wimfs_get_WIMStruct();
 
-	dentry = get_dentry(w, path);
+	dentry = get_dentry(wim, path, WIMLIB_CASE_SENSITIVE);
 	if (!dentry)
 		return -errno;
 
@@ -2089,14 +2108,15 @@ static int wimfs_rmdir(const char *path)
 	if (dentry_has_children(dentry))
 		return -ENOTEMPTY;
 
-	remove_dentry(dentry, w->lookup_table);
+	remove_dentry(dentry, wim->lookup_table);
 	return 0;
 }
 
 #ifdef ENABLE_XATTR
 /* Write an alternate data stream through the XATTR interface */
-static int wimfs_setxattr(const char *path, const char *name,
-			  const char *value, size_t size, int flags)
+static int
+wimfs_setxattr(const char *path, const char *name,
+	       const char *value, size_t size, int flags)
 {
 	struct wim_ads_entry *existing_ads_entry;
 	struct wim_inode *inode;
@@ -2107,7 +2127,7 @@ static int wimfs_setxattr(const char *path, const char *name,
 	if (!(ctx->mount_flags & WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_XATTR))
 		return -ENOTSUP;
 
-	if (strlen(name) < 5 || memcmp(name, "user.", 5) != 0)
+	if (strlen(name) <= 5 || memcmp(name, "user.", 5) != 0)
 		return -ENOATTR;
 	name += 5;
 
@@ -2124,7 +2144,7 @@ static int wimfs_setxattr(const char *path, const char *name,
 			return -ENOATTR;
 	}
 
-	ret = inode_add_ads_with_data(inode, name, (const u8*)value,
+	ret = inode_add_ads_with_data(inode, name, value,
 				      size, ctx->wim->lookup_table);
 	if (ret == 0) {
 		if (existing_ads_entry)
@@ -2136,7 +2156,8 @@ static int wimfs_setxattr(const char *path, const char *name,
 }
 #endif
 
-static int wimfs_symlink(const char *to, const char *from)
+static int
+wimfs_symlink(const char *to, const char *from)
 {
 	struct fuse_context *fuse_ctx = fuse_get_context();
 	struct wimfs_context *wimfs_ctx = WIMFS_CTX(fuse_ctx);
@@ -2147,11 +2168,14 @@ static int wimfs_symlink(const char *to, const char *from)
 			    FILE_ATTRIBUTE_REPARSE_POINT, &dentry);
 	if (ret == 0) {
 		dentry->d_inode->i_reparse_tag = WIM_IO_REPARSE_TAG_SYMLINK;
-		if (inode_set_symlink(dentry->d_inode, to,
-				      wimfs_ctx->wim->lookup_table, NULL))
-		{
+		ret = wim_inode_set_symlink(dentry->d_inode, to,
+					    wimfs_ctx->wim->lookup_table);
+		if (ret) {
 			remove_dentry(dentry, wimfs_ctx->wim->lookup_table);
-			ret = -ENOMEM;
+			if (ret == WIMLIB_ERR_NOMEM)
+				ret = -ENOMEM;
+			else
+				ret = -EIO;
 		}
 	}
 	return ret;
@@ -2159,7 +2183,8 @@ static int wimfs_symlink(const char *to, const char *from)
 
 
 /* Reduce the size of a file */
-static int wimfs_truncate(const char *path, off_t size)
+static int
+wimfs_truncate(const char *path, off_t size)
 {
 	struct wim_dentry *dentry;
 	struct wim_lookup_table_entry *lte;
@@ -2169,8 +2194,8 @@ static int wimfs_truncate(const char *path, off_t size)
 	struct wim_inode *inode;
 	struct wimfs_context *ctx = wimfs_get_context();
 
-	ret = lookup_resource(ctx->wim, path, get_lookup_flags(ctx),
-			      &dentry, &lte, &stream_idx);
+	ret = wim_pathname_to_stream(ctx->wim, path, get_lookup_flags(ctx),
+				     &dentry, &lte, &stream_idx);
 
 	if (ret != 0)
 		return ret;
@@ -2178,27 +2203,35 @@ static int wimfs_truncate(const char *path, off_t size)
 	if (lte == NULL && size == 0)
 		return 0;
 
-	inode = dentry->d_inode;
-	if (stream_idx == 0)
-		stream_id = 0;
-	else
-		stream_id = inode->i_ads_entries[stream_idx - 1].stream_id;
-
-	if (lte->resource_location == RESOURCE_IN_STAGING_FILE) {
+	if (lte != NULL && lte->resource_location == RESOURCE_IN_STAGING_FILE) {
 		ret = truncate(lte->staging_file_name, size);
-		if (ret != 0)
+		if (ret)
 			ret = -errno;
+		else
+			lte->size = size;
 	} else {
 		/* File in WIM.  Extract it to the staging directory, but only
 		 * the first @size bytes of it. */
+		struct wim_lookup_table_entry **back_ptr;
+
+		inode = dentry->d_inode;
+		if (stream_idx == 0) {
+			stream_id = 0;
+			back_ptr = &inode->i_lte;
+		} else {
+			stream_id = inode->i_ads_entries[stream_idx - 1].stream_id;
+			back_ptr = &inode->i_ads_entries[stream_idx - 1].lte;
+		}
 		ret = extract_resource_to_staging_dir(inode, stream_id,
 						      &lte, size, ctx);
+		*back_ptr = lte;
 	}
 	return ret;
 }
 
 /* Unlink a non-directory or alternate data stream */
-static int wimfs_unlink(const char *path)
+static int
+wimfs_unlink(const char *path)
 {
 	struct wim_dentry *dentry;
 	struct wim_lookup_table_entry *lte;
@@ -2206,13 +2239,13 @@ static int wimfs_unlink(const char *path)
 	u16 stream_idx;
 	struct wimfs_context *ctx = wimfs_get_context();
 
-	ret = lookup_resource(ctx->wim, path, get_lookup_flags(ctx),
-			      &dentry, &lte, &stream_idx);
+	ret = wim_pathname_to_stream(ctx->wim, path, get_lookup_flags(ctx),
+				     &dentry, &lte, &stream_idx);
 
 	if (ret != 0)
 		return ret;
 
-	if (stream_idx == 0)
+	if (inode_stream_name_nbytes(dentry->d_inode, stream_idx) == 0)
 		remove_dentry(dentry, ctx->wim->lookup_table);
 	else
 		inode_remove_ads(dentry->d_inode, stream_idx - 1,
@@ -2226,13 +2259,14 @@ static int wimfs_unlink(const char *path)
  *
  * Note that alternate data streams do not have their own timestamps.
  */
-static int wimfs_utimens(const char *path, const struct timespec tv[2])
+static int
+wimfs_utimens(const char *path, const struct timespec tv[2])
 {
 	struct wim_dentry *dentry;
 	struct wim_inode *inode;
-	WIMStruct *w = wimfs_get_WIMStruct();
+	WIMStruct *wim = wimfs_get_WIMStruct();
 
- 	dentry = get_dentry(w, path);
+	dentry = get_dentry(wim, path, WIMLIB_CASE_SENSITIVE);
 	if (!dentry)
 		return -errno;
 	inode = dentry->d_inode;
@@ -2241,24 +2275,25 @@ static int wimfs_utimens(const char *path, const struct timespec tv[2])
 		if (tv[0].tv_nsec == UTIME_NOW)
 			inode->i_last_access_time = get_wim_timestamp();
 		else
-			inode->i_last_access_time = timespec_to_wim_timestamp(&tv[0]);
+			inode->i_last_access_time = timespec_to_wim_timestamp(tv[0]);
 	}
 	if (tv[1].tv_nsec != UTIME_OMIT) {
 		if (tv[1].tv_nsec == UTIME_NOW)
 			inode->i_last_write_time = get_wim_timestamp();
 		else
-			inode->i_last_write_time = timespec_to_wim_timestamp(&tv[1]);
+			inode->i_last_write_time = timespec_to_wim_timestamp(tv[1]);
 	}
 	return 0;
 }
-#else
-static int wimfs_utime(const char *path, struct utimbuf *times)
+#else /* HAVE_UTIMENSAT */
+static int
+wimfs_utime(const char *path, struct utimbuf *times)
 {
 	struct wim_dentry *dentry;
 	struct wim_inode *inode;
-	WIMStruct *w = wimfs_get_WIMStruct();
+	WIMStruct *wim = wimfs_get_WIMStruct();
 
- 	dentry = get_dentry(w, path);
+	dentry = get_dentry(wim, path, WIMLIB_CASE_SENSITIVE);
 	if (!dentry)
 		return -errno;
 	inode = dentry->d_inode;
@@ -2267,51 +2302,47 @@ static int wimfs_utime(const char *path, struct utimbuf *times)
 	inode->i_last_access_time = unix_timestamp_to_wim(times->actime);
 	return 0;
 }
-#endif
+#endif /* !HAVE_UTIMENSAT */
 
 /* Writes to a file in the WIM filesystem.
  * It may be an alternate data stream, but here we don't even notice because we
  * just get a lookup table entry. */
-static int wimfs_write(const char *path, const char *buf, size_t size,
-		       off_t offset, struct fuse_file_info *fi)
+static int
+wimfs_write(const char *path, const char *buf, size_t size,
+	    off_t offset, struct fuse_file_info *fi)
 {
 	struct wimfs_fd *fd = (struct wimfs_fd*)(uintptr_t)fi->fh;
 	int ret;
-	u64 now;
 
 	if (!fd)
 		return -EBADF;
 
-	wimlib_assert(fd->f_lte);
-	wimlib_assert(fd->f_lte->staging_file_name);
-	wimlib_assert(fd->staging_fd != -1);
-	wimlib_assert(fd->f_inode);
-
-	/* Seek to the requested position */
-	if (lseek(fd->staging_fd, offset, SEEK_SET) == -1)
-		return -errno;
+	wimlib_assert(fd->f_lte != NULL);
+	wimlib_assert(fd->f_lte->staging_file_name != NULL);
+	wimlib_assert(filedes_valid(&fd->staging_fd));
+	wimlib_assert(fd->f_inode != NULL);
 
 	/* Write the data. */
-	ret = write(fd->staging_fd, buf, size);
+	ret = raw_pwrite(&fd->staging_fd, buf, size, offset);
 	if (ret == -1)
 		return -errno;
 
-	now = get_wim_timestamp();
-	fd->f_inode->i_last_write_time = now;
-	fd->f_inode->i_last_access_time = now;
+	/* Update file size */
+	if (offset + size > fd->f_lte->size) {
+		DEBUG("Update file size %"PRIu64 " => %"PRIu64"",
+		      fd->f_lte->size, offset + size);
+		fd->f_lte->size = offset + size;
+	}
+
+	/* Update timestamps */
+	touch_inode(fd->f_inode);
 	return ret;
 }
 
 static struct fuse_operations wimfs_operations = {
-#if 0
-	.access      = wimfs_access,
-#endif
 	.chmod       = wimfs_chmod,
 	.chown       = wimfs_chown,
 	.destroy     = wimfs_destroy,
-#if 0
-	.fallocate   = wimfs_fallocate,
-#endif
 	.fgetattr    = wimfs_fgetattr,
 	.ftruncate   = wimfs_ftruncate,
 	.getattr     = wimfs_getattr,
@@ -2362,20 +2393,17 @@ static struct fuse_operations wimfs_operations = {
 };
 
 
-/* Mounts an image from a WIM file. */
-WIMLIBAPI int wimlib_mount_image(WIMStruct *wim, int image, const char *dir,
-				 int mount_flags, WIMStruct **additional_swms,
-				 unsigned num_additional_swms,
-				 const char *staging_dir)
+/* API function documented in wimlib.h  */
+WIMLIBAPI int
+wimlib_mount_image(WIMStruct *wim, int image, const char *dir,
+		   int mount_flags, const char *staging_dir)
 {
 	int argc;
 	char *argv[16];
 	int ret;
 	char *dir_copy;
-	struct wim_lookup_table *joined_tab, *wim_tab_save;
 	struct wim_image_metadata *imd;
 	struct wimfs_context ctx;
-	struct hlist_node *cur_node;
 	struct wim_inode *inode;
 
 	DEBUG("Mount: wim = %p, image = %d, dir = %s, flags = %d, ",
@@ -2384,60 +2412,42 @@ WIMLIBAPI int wimlib_mount_image(WIMStruct *wim, int image, const char *dir,
 	if (!wim || !dir)
 		return WIMLIB_ERR_INVALID_PARAM;
 
-	ret = verify_swm_set(wim, additional_swms, num_additional_swms);
-	if (ret != 0)
-		return ret;
-
-	if ((mount_flags & WIMLIB_MOUNT_FLAG_READWRITE) && (wim->hdr.total_parts != 1)) {
-		ERROR("Cannot mount a split WIM read-write");
-		return WIMLIB_ERR_SPLIT_UNSUPPORTED;
-	}
-
-	if (num_additional_swms) {
-		ret = new_joined_lookup_table(wim, additional_swms,
-					      num_additional_swms,
-					      &joined_tab);
-		if (ret != 0)
-			return ret;
-		wim_tab_save = wim->lookup_table;
-		wim->lookup_table = joined_tab;
-	}
+	if (mount_flags & ~(WIMLIB_MOUNT_FLAG_READWRITE |
+			    WIMLIB_MOUNT_FLAG_DEBUG |
+			    WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_NONE |
+			    WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_XATTR |
+			    WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_WINDOWS |
+			    WIMLIB_MOUNT_FLAG_UNIX_DATA |
+			    WIMLIB_MOUNT_FLAG_ALLOW_OTHER))
+		return WIMLIB_ERR_INVALID_PARAM;
 
 	if (mount_flags & WIMLIB_MOUNT_FLAG_READWRITE) {
-		ret = wim_run_full_verifications(wim);
-		if (ret != 0)
-			goto out;
+		ret = can_delete_from_wim(wim);
+		if (ret)
+			return ret;
 	}
 
 	ret = select_wim_image(wim, image);
-	if (ret != 0)
-		goto out;
+	if (ret)
+		return ret;
 
 	DEBUG("Selected image %d", image);
 
 	imd = wim_get_current_image_metadata(wim);
 
-	if (imd->root_dentry->refcnt != 1) {
-		ERROR("Cannot mount image that was just exported with "
-		      "wimlib_export_image()");
-		ret = WIMLIB_ERR_INVALID_PARAM;
-		goto out;
-	}
-
-	if (imd->inode_list.first) /* May be unneeded? */
-		imd->inode_list.first->pprev = &imd->inode_list.first;
-
 	if (imd->modified) {
-		ERROR("Cannot mount image that was added "
-		      "with wimlib_add_image()");
-		ret = WIMLIB_ERR_INVALID_PARAM;
-		goto out;
+		/* wimfs_read() only supports a limited number of stream
+		 * locations, not including RESOURCE_IN_FILE_ON_DISK,
+		 * RESOURCE_IN_NTFS_VOLUME, etc. that might appear if files were
+		 * added to the WIM image.  */
+		ERROR("Cannot mount an image with newly added files!");
+		return WIMLIB_ERR_INVALID_PARAM;
 	}
 
 	if (mount_flags & WIMLIB_MOUNT_FLAG_READWRITE) {
-		ret = lock_wim(wim, wim->fp);
-		if (ret != 0)
-			goto out;
+		ret = lock_wim(wim, wim->in_fd.fd);
+		if (ret)
+			return ret;
 	}
 
 	/* Use default stream interface if one was not specified */
@@ -2446,7 +2456,6 @@ WIMLIBAPI int wimlib_mount_image(WIMStruct *wim, int image, const char *dir,
 		       WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_WINDOWS)))
 		mount_flags |= WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_XATTR;
 
-
 	DEBUG("Initializing struct wimfs_context");
 	init_wimfs_context(&ctx);
 	ctx.wim = wim;
@@ -2454,28 +2463,30 @@ WIMLIBAPI int wimlib_mount_image(WIMStruct *wim, int image, const char *dir,
 	ctx.image_inode_list = &imd->inode_list;
 	ctx.default_uid = getuid();
 	ctx.default_gid = getgid();
+	wimlib_assert(list_empty(&imd->unhashed_streams));
 	if (mount_flags & WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_WINDOWS)
 		ctx.default_lookup_flags = LOOKUP_FLAG_ADS_OK;
 
 	DEBUG("Unlinking message queues in case they already exist");
 	ret = set_message_queue_names(&ctx, dir);
-	if (ret != 0)
+	if (ret)
 		goto out_unlock;
 	unlink_message_queues(&ctx);
 
 	DEBUG("Preparing arguments to fuse_main()");
 
 	dir_copy = STRDUP(dir);
-	if (!dir_copy)
+	if (!dir_copy) {
+		ret = WIMLIB_ERR_NOMEM;
 		goto out_free_message_queue_names;
+	}
 
 	argc = 0;
-	argv[argc++] = "imagex";
+	argv[argc++] = "wimlib";
 	argv[argc++] = dir_copy;
 
- 	/* disable multi-threaded operation for read-write mounts */
-	if (mount_flags & WIMLIB_MOUNT_FLAG_READWRITE)
-		argv[argc++] = "-s";
+	/* disable multi-threaded operation */
+	argv[argc++] = "-s";
 
 	if (mount_flags & WIMLIB_MOUNT_FLAG_DEBUG)
 		argv[argc++] = "-d";
@@ -2497,7 +2508,7 @@ WIMLIBAPI int wimlib_mount_image(WIMStruct *wim, int image, const char *dir,
 	if ((mount_flags & WIMLIB_MOUNT_FLAG_READWRITE)) {
 		/* Read-write mount.  Make the staging directory */
 		ret = make_staging_dir(&ctx, staging_dir);
-		if (ret != 0)
+		if (ret)
 			goto out_free_dir_copy;
 	} else {
 		/* Read-only mount */
@@ -2521,19 +2532,15 @@ WIMLIBAPI int wimlib_mount_image(WIMStruct *wim, int image, const char *dir,
 #endif
 
 	/* Mark dentry tree as modified if read-write mount. */
-	if (mount_flags & WIMLIB_MOUNT_FLAG_READWRITE) {
+	if (mount_flags & WIMLIB_MOUNT_FLAG_READWRITE)
 		imd->modified = 1;
-		imd->has_been_mounted_rw = 1;
-	}
 
 	/* Resolve the lookup table entries for every inode in the image, and
 	 * assign inode numbers */
 	DEBUG("Resolving lookup table entries and assigning inode numbers");
 	ctx.next_ino = 1;
-	hlist_for_each_entry(inode, cur_node, &imd->inode_list, i_hlist) {
-		inode_resolve_ltes(inode, wim->lookup_table);
+	image_for_each_inode(inode, imd)
 		inode->i_ino = ctx.next_ino++;
-	}
 	DEBUG("(next_ino = %"PRIu64")", ctx.next_ino);
 
 	DEBUG("Calling fuse_main()");
@@ -2565,24 +2572,24 @@ out_unlock:
 	wim->wim_locked = 0;
 out_free_message_queue_names:
 	free_message_queue_names(&ctx);
-out:
-	if (num_additional_swms) {
-		free_lookup_table(wim->lookup_table);
-		wim->lookup_table = wim_tab_save;
-	}
 	return ret;
 }
 
-/*
- * Unmounts the WIM file that was previously mounted on @dir by using
- * wimlib_mount_image().
- */
-WIMLIBAPI int wimlib_unmount_image(const char *dir, int unmount_flags,
-				   wimlib_progress_func_t progress_func)
+/* API function documented in wimlib.h  */
+WIMLIBAPI int
+wimlib_unmount_image(const char *dir, int unmount_flags,
+		     wimlib_progress_func_t progress_func)
 {
 	int ret;
 	struct wimfs_context wimfs_ctx;
 
+	if (unmount_flags & ~(WIMLIB_UNMOUNT_FLAG_CHECK_INTEGRITY |
+			      WIMLIB_UNMOUNT_FLAG_COMMIT |
+			      WIMLIB_UNMOUNT_FLAG_REBUILD |
+			      WIMLIB_UNMOUNT_FLAG_RECOMPRESS |
+			      WIMLIB_UNMOUNT_FLAG_LAZY))
+		return WIMLIB_ERR_INVALID_PARAM;
+
 	init_wimfs_context(&wimfs_ctx);
 
 	ret = set_message_queue_names(&wimfs_ctx, dir);
@@ -2599,7 +2606,7 @@ WIMLIBAPI int wimlib_unmount_image(const char *dir, int unmount_flags,
 	if (ret != 0)
 		goto out_close_message_queues;
 
-	ret = execute_fusermount(dir);
+	ret = execute_fusermount(dir, (unmount_flags & WIMLIB_UNMOUNT_FLAG_LAZY) != 0);
 	if (ret != 0)
 		goto out_close_message_queues;
 
@@ -2627,7 +2634,8 @@ out:
 #else /* WITH_FUSE */
 
 
-static inline int mount_unsupported_error()
+static int
+mount_unsupported_error(void)
 {
 #if defined(__WIN32__)
 	ERROR("Sorry-- Mounting WIM images is not supported on Windows!");
@@ -2638,18 +2646,18 @@ static inline int mount_unsupported_error()
 	return WIMLIB_ERR_UNSUPPORTED;
 }
 
-WIMLIBAPI int wimlib_unmount_image(const char *dir, int unmount_flags,
-				   wimlib_progress_func_t progress_func)
+WIMLIBAPI int
+wimlib_unmount_image(const tchar *dir, int unmount_flags,
+		     wimlib_progress_func_t progress_func)
 {
 	return mount_unsupported_error();
 }
 
-WIMLIBAPI int wimlib_mount_image(WIMStruct *wim_p, int image, const char *dir,
-				 int mount_flags, WIMStruct **additional_swms,
-				 unsigned num_additional_swms,
-				 const char *staging_dir)
+WIMLIBAPI int
+wimlib_mount_image(WIMStruct *wim, int image, const tchar *dir,
+		   int mount_flags, const tchar *staging_dir)
 {
 	return mount_unsupported_error();
 }
 
-#endif /* WITH_FUSE */
+#endif /* !WITH_FUSE */