* 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
# error "FUSE mount not supported on Win32! Please configure --without-fuse"
#endif
-#include "buffer_io.h"
-#include "lookup_table.h"
-#include "sha1.h"
-#include "timestamp.h"
-#include "xml.h"
+#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>
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;
};
u64 next_ino;
/* 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;
#define WIMFS_CTX(fuse_ctx) ((struct wimfs_context*)(fuse_ctx)->private_data)
static inline struct wimfs_context *
-wimfs_get_context()
+wimfs_get_context(void)
{
return WIMFS_CTX(fuse_get_context());
}
static inline WIMStruct *
-wimfs_get_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)
{
* @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.
*/
alloc_wimfs_fd(struct wim_inode *inode,
u32 stream_id,
struct wim_lookup_table_entry *lte,
- struct wimfs_fd **fd_ret,
- bool readonly)
+ 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,
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;
}
}
out:
- pthread_mutex_unlock(&inode->i_mutex);
return ret;
}
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);
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);
}
}
/* 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;
}
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.
*
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;
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;
ret = new_dentry_with_inode(basename, &new);
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))
{
}
}
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.
*
stbuf->st_ino = (ino_t)inode->i_ino;
stbuf->st_nlink = inode->i_nlink;
if (lte)
- stbuf->st_size = wim_resource_size(lte);
+ stbuf->st_size = lte->size;
else
stbuf->st_size = 0;
#ifdef HAVE_STAT_NANOSECOND_PRECISION
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;
/* 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;
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++;
}
}
}
- 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;
-
- struct wim_lookup_table_entry **my_ptr;
-
- if (stream_id == 0) {
- my_ptr = &inode->i_lte;
- } else {
- for (u16 i = 0; ; i++) {
- wimlib_assert(i < inode->i_num_ads);
- if (inode->i_ads_entries[i].stream_id == stream_id) {
- my_ptr = &inode->i_ads_entries[i].lte;
- break;
- }
- }
- }
+ 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;
- lookup_table_insert_unhashed(ctx->wim->lookup_table, new_lte, my_ptr);
+ 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:
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++;
}
{
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, &imd->unhashed_streams, staging_list) {
- ret = inode_close_fds(lte->lte_inode);
+ image_for_each_unhashed_stream_safe(lte, tmp, imd) {
+ ret = inode_close_fds(lte->back_inode);
if (ret)
return ret;
}
DEBUG("Freeing entries for zero-length streams");
- list_for_each_entry_safe(lte, tmp, &imd->unhashed_streams, staging_list) {
- if (wim_resource_size(lte) == 0) {
- *lte->my_ptr = NULL;
+ 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(<e->unhashed_list);
free_lookup_table_entry(lte);
}
}
- xml_update_image_info(w, w->current_image);
- ret = wimlib_overwrite(w, write_flags, 0, progress_func);
+ 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;
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)
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,
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 to finish writing the WIM file.
*/
static int
-execute_fusermount(const char *dir)
+execute_fusermount(const char *dir, bool lazy)
{
pid_t pid;
int ret;
}
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);
}
}
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);
}
"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;
+ return 0;
}
-#endif
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;
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;
}
}
-#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)
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);
+ int ret = ftruncate(fd->staging_fd.fd, size);
if (ret)
return -errno;
touch_inode(fd->f_inode);
- fd->f_lte->resource_entry.original_size = size;
+ fd->f_lte->size = size;
return 0;
}
int ret;
struct wimfs_context *ctx = wimfs_get_context();
- ret = lookup_resource(ctx->wim, path,
- get_lookup_flags(ctx) | LOOKUP_FLAG_DIRECTORY_OK,
- &dentry, <e, NULL);
+ ret = wim_pathname_to_stream(ctx->wim, path,
+ get_lookup_flags(ctx) |
+ LOOKUP_FLAG_DIRECTORY_OK,
+ &dentry, <e, NULL);
if (ret != 0)
return ret;
return inode_to_stbuf(dentry->d_inode, lte, stbuf);
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;
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_resource_into_buf(lte, value, true);
- 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
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;
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;
ret = new_dentry(link_name, &from_dentry);
if (ret)
return -ENOMEM;
- inode_add_dentry(from_dentry, inode);
- from_dentry->d_inode = inode;
inode->i_nlink++;
-
- for (i = 0; i <= inode->i_num_ads; i++) {
- lte = inode_stream_lte_resolved(inode, i);
- if (lte)
- lte->refcnt++;
- }
+ 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;
}
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;
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, <e, &stream_idx);
- if (ret != 0)
+ ret = wim_pathname_to_stream(ctx->wim, path, get_lookup_flags(ctx),
+ &dentry, <e, &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
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,
<e, 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;
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;
}
{
struct wimfs_fd *fd = (struct wimfs_fd*)(uintptr_t)fi->fh;
ssize_t ret;
- u64 res_size;
+ u64 stream_size;
if (!fd)
return -EBADF;
- if (!fd->f_lte) /* Empty stream with no lookup table entry */
+ if (size == 0)
return 0;
- res_size = wim_resource_size(fd->f_lte);
- if (offset > res_size)
+ if (fd->f_lte)
+ stream_size = fd->f_lte->size;
+ else
+ stream_size = 0;
+
+ if (offset > stream_size)
return -EOVERFLOW;
- size = min(size, INT_MAX);
- size = min(size, res_size - offset);
+
+ size = min(size, stream_size - offset);
+ if (size == 0)
+ return 0;
switch (fd->f_lte->resource_location) {
case RESOURCE_IN_STAGING_FILE:
- ret = pread(fd->staging_fd, buf, size, offset);
- if (ret < 0)
+ ret = raw_pread(&fd->staging_fd, buf, size, offset);
+ if (ret == -1)
ret = -errno;
break;
case RESOURCE_IN_WIM:
- if (read_partial_wim_resource_into_buf(fd->f_lte, size,
- offset, buf, true))
- ret = -errno;
- ret = size;
+ 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);
return -errno;
if (!inode_is_symlink(inode))
return -EINVAL;
-
- ret = inode_readlink(inode, buf, buf_len, ctx->wim, true);
- 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;
}
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 */
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;
if (dentry_has_children(dentry))
return -ENOTEMPTY;
- remove_dentry(dentry, w->lookup_table);
+ remove_dentry(dentry, wim->lookup_table);
return 0;
}
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;
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;
struct wim_inode *inode;
struct wimfs_context *ctx = wimfs_get_context();
- ret = lookup_resource(ctx->wim, path, get_lookup_flags(ctx),
- &dentry, <e, &stream_idx);
+ ret = wim_pathname_to_stream(ctx->wim, path, get_lookup_flags(ctx),
+ &dentry, <e, &stream_idx);
if (ret != 0)
return ret;
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,
<e, size, ctx);
+ *back_ptr = lte;
}
- if (ret == 0)
- lte->resource_entry.original_size = size;
return ret;
}
u16 stream_idx;
struct wimfs_context *ctx = wimfs_get_context();
- ret = lookup_resource(ctx->wim, path, get_lookup_flags(ctx),
- &dentry, <e, &stream_idx);
+ ret = wim_pathname_to_stream(ctx->wim, path, get_lookup_flags(ctx),
+ &dentry, <e, &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,
{
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;
{
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;
wimlib_assert(fd->f_lte != NULL);
wimlib_assert(fd->f_lte->staging_file_name != NULL);
- wimlib_assert(fd->staging_fd != -1);
+ wimlib_assert(filedes_valid(&fd->staging_fd));
wimlib_assert(fd->f_inode != NULL);
/* Write the data. */
- ret = pwrite(fd->staging_fd, buf, size, offset);
+ ret = raw_pwrite(&fd->staging_fd, buf, size, offset);
if (ret == -1)
return -errno;
/* Update file size */
- if (offset + size > fd->f_lte->resource_entry.original_size)
- fd->f_lte->resource_entry.original_size = offset + 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);
}
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,
};
-/* Mounts an image from a WIM file. */
+/* API function documented in wimlib.h */
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)
+ 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, ",
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) {
- 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->refcnt != 1) {
- ERROR("Cannot mount image that was just exported with "
- "wimlib_export_image()");
- ret = WIMLIB_ERR_INVALID_PARAM;
- goto out;
- }
-
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 */
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;
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);
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";
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 */
#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()");
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().
- */
+/* API function documented in wimlib.h */
WIMLIBAPI int
wimlib_unmount_image(const char *dir, int unmount_flags,
wimlib_progress_func_t progress_func)
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;
static int
-mount_unsupported_error()
+mount_unsupported_error(void)
{
#if defined(__WIN32__)
ERROR("Sorry-- Mounting WIM images is not supported on Windows!");
WIMLIBAPI int
wimlib_mount_image(WIMStruct *wim, int image, const tchar *dir,
- int mount_flags, WIMStruct **additional_swms,
- unsigned num_additional_swms,
- const tchar *staging_dir)
+ int mount_flags, const tchar *staging_dir)
{
return mount_unsupported_error();
}
git://wimlib.net / wimlib / blobdiff