*/
/*
- * Copyright (C) 2012, 2013 Eric Biggers
+ * Copyright (C) 2012, 2013, 2014 Eric Biggers
*
* This file is part of wimlib, a library for working with WIM files.
*
new->d_inode->i_attributes = attributes;
if (wimfs_ctx->mount_flags & WIMLIB_MOUNT_FLAG_UNIX_DATA) {
- if (inode_set_unix_data(new->d_inode,
- fuse_ctx->uid,
- fuse_ctx->gid,
- fuse_mask_mode(mode, fuse_ctx),
- wimfs_ctx->wim->lookup_table,
- UNIX_DATA_ALL | UNIX_DATA_CREATE))
- {
- free_dentry(new);
- return -ENOMEM;
- }
+ new->d_inode->i_unix_data.uid = fuse_ctx->uid;
+ new->d_inode->i_unix_data.gid = fuse_ctx->gid;
+ new->d_inode->i_unix_data.mode = fuse_mask_mode(mode, fuse_ctx);
}
dentry_add_child(parent, new);
list_add_tail(&new->d_inode->i_list, wimfs_ctx->image_inode_list);
return NULL;
}
-/* Remove a dentry from a mounted WIM image; i.e. remove an alias for the
- * corresponding inode.
- *
- * If there are no remaining references to the inode either through dentries or
- * open file descriptors, the inode is freed. Otherwise, the inode is not
- * removed, but the dentry is unlinked and freed.
- *
- * Either way, all lookup table entries referenced by the inode have their
- * reference count decremented. If a lookup table entry has no open file
- * descriptors and no references remaining, it is freed, and the corresponding
- * staging file is unlinked.
+/*
+ * Remove a dentry from a mounted WIM image; i.e. remove an alias for an inode.
*/
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;
- unsigned i;
+ /* Put a reference to each stream the inode contains. */
+ inode_unref_streams(dentry->d_inode, lookup_table);
- for (i = 0; i <= inode->i_num_ads; i++) {
- lte = inode_stream_lte(inode, i, lookup_table);
- if (lte)
- lte_decrement_refcnt(lte, lookup_table);
- }
+ /* Unlink the dentry from the image's dentry tree. */
unlink_dentry(dentry);
+
+ /* Delete the dentry. This will also decrement the link count of the
+ * corresponding inode. */
free_dentry(dentry);
}
static mode_t
-inode_default_unix_mode(const struct wim_inode *inode)
+inode_unix_file_type(const struct wim_inode *inode)
{
if (inode_is_symlink(inode))
- return S_IFLNK | 0777;
+ return S_IFLNK;
else if (inode_is_directory(inode))
- return S_IFDIR | 0777;
+ return S_IFDIR;
else
- return S_IFREG | 0777;
+ return S_IFREG;
+}
+
+static mode_t
+inode_default_unix_mode(const struct wim_inode *inode)
+{
+ return inode_unix_file_type(inode) | 0777;
}
/* Transfers file attributes from a struct wim_inode to a `stat' buffer.
const struct wimfs_context *ctx = wimfs_get_context();
memset(stbuf, 0, sizeof(struct stat));
- stbuf->st_mode = inode_default_unix_mode(inode);
- stbuf->st_uid = ctx->default_uid;
- stbuf->st_gid = ctx->default_gid;
- if (ctx->mount_flags & WIMLIB_MOUNT_FLAG_UNIX_DATA) {
- struct wimlib_unix_data unix_data;
- if (inode_get_unix_data(inode, &unix_data, NULL) == 0) {
- stbuf->st_uid = unix_data.uid;
- stbuf->st_gid = unix_data.gid;
- stbuf->st_mode = unix_data.mode;
- }
+ if ((ctx->mount_flags & WIMLIB_MOUNT_FLAG_UNIX_DATA) &&
+ inode_has_unix_data(inode))
+ {
+ stbuf->st_uid = inode->i_unix_data.uid;
+ stbuf->st_gid = inode->i_unix_data.gid;
+ stbuf->st_mode = inode->i_unix_data.mode;
+ } else {
+ stbuf->st_uid = ctx->default_uid;
+ stbuf->st_gid = ctx->default_gid;
+ stbuf->st_mode = inode_default_unix_mode(inode);
}
stbuf->st_ino = (ino_t)inode->i_ino;
stbuf->st_nlink = inode->i_nlink;
struct msg_unmount_request msg = {
.hdr = {
.min_version = ((unmount_flags & WIMLIB_UNMOUNT_FLAG_NEW_IMAGE) ?
- WIMLIB_MAKEVERSION(1, 6, 1) :
+ WIMLIB_MAKEVERSION(1, 6, 2) :
WIMLIB_MAKEVERSION(1, 2, 1)),
.cur_version = WIMLIB_VERSION_CODE,
.msg_type = MSG_TYPE_UNMOUNT_REQUEST,
struct wim_lookup_table *lookup_table = ctx->wim->lookup_table;
struct wim_lookup_table_entry *lte, *tmp;
- list_for_each_entry_safe(lte, tmp, list, orig_stream_list)
- while (lte->out_refcnt--)
+ list_for_each_entry_safe(lte, tmp, list, orig_stream_list) {
+ u32 n = lte->out_refcnt;
+ while (n--)
lte_decrement_refcnt(lte, lookup_table);
+ }
}
/* Moves the currently selected image, which may have been modified, to a new
wimfs_chmod(const char *path, mode_t mask)
{
struct wim_dentry *dentry;
+ struct wim_inode *inode;
struct wimfs_context *ctx = wimfs_get_context();
int ret;
if (ret)
return ret;
- ret = inode_set_unix_data(dentry->d_inode, ctx->default_uid,
- ctx->default_gid, mask,
- ctx->wim->lookup_table, UNIX_DATA_MODE);
- return ret ? -ENOMEM : 0;
+ inode = dentry->d_inode;
+
+ if (!inode_has_unix_data(inode)) {
+ inode->i_unix_data.uid = ctx->default_uid;
+ inode->i_unix_data.gid = ctx->default_gid;
+ }
+ inode->i_unix_data.mode = mask;
+ return 0;
}
static int
wimfs_chown(const char *path, uid_t uid, gid_t gid)
{
struct wim_dentry *dentry;
+ struct wim_inode *inode;
struct wimfs_context *ctx = wimfs_get_context();
int ret;
if (ret)
return ret;
- ret = inode_set_unix_data(dentry->d_inode, uid, gid,
- inode_default_unix_mode(dentry->d_inode),
- ctx->wim->lookup_table,
- UNIX_DATA_UID | UNIX_DATA_GID);
- return ret ? -ENOMEM : 0;
+ inode = dentry->d_inode;
+
+ if (!inode_has_unix_data(inode))
+ inode->i_unix_data.mode = inode_default_unix_mode(inode);
+ inode->i_unix_data.uid = uid;
+ inode->i_unix_data.gid = gid;
+ return 0;
}
/* Called when the filesystem is unmounted. */
return ret;
}
-struct fill_params {
- void *buf;
- fuse_fill_dir_t filler;
-};
-
-static int
-dentry_fuse_fill(struct wim_dentry *dentry, void *arg)
-{
- struct fill_params *fill_params = arg;
-
- 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
{
struct wimfs_fd *fd = (struct wimfs_fd*)(uintptr_t)fi->fh;
struct wim_inode *inode;
+ struct wim_dentry *child;
+ int ret;
if (!fd)
return -EBADF;
inode = fd->f_inode;
- struct fill_params fill_params = {
- .buf = buf,
- .filler = filler,
- };
+ ret = filler(buf, ".", NULL, 0);
+ if (ret)
+ return ret;
+ ret = filler(buf, "..", NULL, 0);
+ if (ret)
+ return ret;
- filler(buf, ".", NULL, 0);
- filler(buf, "..", NULL, 0);
+ for_inode_child(child, inode) {
+ char *file_name_mbs;
+ size_t file_name_mbs_nbytes;
- return for_dentry_in_rbtree(inode->i_children.rb_node,
- dentry_fuse_fill, &fill_params);
+ ret = utf16le_to_tstr(child->file_name,
+ child->file_name_nbytes,
+ &file_name_mbs,
+ &file_name_mbs_nbytes);
+ if (ret)
+ return -errno;
+
+ ret = filler(buf, file_name_mbs, NULL, 0);
+ FREE(file_name_mbs);
+ if (ret)
+ return ret;
+ }
+ return 0;
}
wimfs_rename(const char *from, const char *to)
{
return rename_wim_path(wimfs_get_WIMStruct(), from, to,
- WIMLIB_CASE_SENSITIVE);
+ WIMLIB_CASE_SENSITIVE, NULL);
}
/* Remove a directory */
static int
wimfs_utimens(const char *path, const struct timespec tv[2])
{
- struct wim_dentry *dentry;
struct wim_inode *inode;
WIMStruct *wim = wimfs_get_WIMStruct();
- dentry = get_dentry(wim, path, WIMLIB_CASE_SENSITIVE);
- if (!dentry)
+ inode = wim_pathname_to_inode(wim, path);
+ if (!inode)
return -errno;
- inode = dentry->d_inode;
if (tv[0].tv_nsec != UTIME_OMIT) {
if (tv[0].tv_nsec == UTIME_NOW)
static int
wimfs_utime(const char *path, struct utimbuf *times)
{
- struct wim_dentry *dentry;
struct wim_inode *inode;
WIMStruct *wim = wimfs_get_WIMStruct();
- dentry = get_dentry(wim, path, WIMLIB_CASE_SENSITIVE);
- if (!dentry)
+ inode = wim_pathname_to_inode(wim, path);
+ if (!inode)
return -errno;
- inode = dentry->d_inode;
inode->i_last_write_time = unix_timestamp_to_wim(times->modtime);
inode->i_last_access_time = unix_timestamp_to_wim(times->actime);
#endif
/* Assign inode numbers. Also, if a read-write mount was requested,
- * mark the dentry tree as modified, and add each streams referenced by
+ * mark the dentry tree as modified, and add each stream referenced by
* files in the image to a list and preemptively double the number of
* references to each. The latter is done to allow implementing the
* WIMLIB_UNMOUNT_FLAG_NEW_IMAGE semantics. */
struct wim_lookup_table_entry *lte;
lte = inode_stream_lte(inode, i, wim->lookup_table);
- if (lte) {
- lte->orig_stream_list = (struct list_head){NULL, NULL};
+ if (lte)
lte->out_refcnt = 0;
- }
}
}
image_for_each_inode(inode, imd) {
git://wimlib.net / wimlib / blobdiff