#include <ftw.h>
#include <mqueue.h>
#include <utime.h>
+#include <signal.h>
#ifdef ENABLE_XATTR
#include <attr/xattr.h>
#endif
+#define MSG_VERSION_TOO_HIGH -1
+#define MSG_BREAK_LOOP -2
+
/* File descriptor to a file open on the WIM filesystem. */
-struct wimlib_fd {
- struct inode *f_inode;
- struct lookup_table_entry *f_lte;
+struct wimfs_fd {
+ struct wim_inode *f_inode;
+ struct wim_lookup_table_entry *f_lte;
int staging_fd;
u16 idx;
u32 stream_id;
/* Flags passed to wimlib_mount(). */
int mount_flags;
+ /* Default flags to use when looking up a WIM dentry (depends on whether
+ * the Windows interface to alternate data streams is being used or
+ * not). */
int default_lookup_flags;
- /* Next inode number to be assigned. */
+ /* Next inode number to be assigned. Note: I didn't bother with a
+ * bitmap of free inode numbers since this isn't even a "real"
+ * filesystem anyway. */
u64 next_ino;
- /* List of lookup table entries in the staging directory */
+ /* 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;
- /* 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_mount() (i.e. the `imagex
- * unmount' command) needs to communicate with the filesystem daemon running
- * fuse_main() (i.e. that spawned by the `imagex mount' or `imagex mountrw'
- * commands */
+ /* 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 */
char *unmount_to_daemon_mq_name;
char *daemon_to_unmount_mq_name;
mqd_t unmount_to_daemon_mq;
*
* Return 0 iff successful or error code if unsuccessful.
*/
-static int alloc_wimlib_fd(struct inode *inode,
- u32 stream_id,
- struct lookup_table_entry *lte,
- struct wimlib_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,
+ bool readonly)
{
static const u16 fds_per_alloc = 8;
static const u16 max_fds = 0xffff;
pthread_mutex_lock(&inode->i_mutex);
- DEBUG("Allocating fd for stream ID %u from inode %lx (open = %u, allocated = %u)",
- stream_id, inode->ino, inode->num_opened_fds,
- inode->num_allocated_fds);
+ DEBUG("Allocating fd for stream ID %u from inode %#"PRIx64" "
+ "(open = %u, allocated = %u)",
+ stream_id, inode->i_ino, inode->i_num_opened_fds,
+ inode->i_num_allocated_fds);
- if (inode->num_opened_fds == inode->num_allocated_fds) {
- struct wimlib_fd **fds;
+ if (inode->i_num_opened_fds == inode->i_num_allocated_fds) {
+ struct wimfs_fd **fds;
u16 num_new_fds;
- if (inode->num_allocated_fds == max_fds) {
+ if (inode->i_num_allocated_fds == max_fds) {
ret = -EMFILE;
goto out;
}
num_new_fds = min(fds_per_alloc,
- max_fds - inode->num_allocated_fds);
+ max_fds - inode->i_num_allocated_fds);
- fds = REALLOC(inode->fds,
- (inode->num_allocated_fds + num_new_fds) *
- sizeof(inode->fds[0]));
+ fds = REALLOC(inode->i_fds,
+ (inode->i_num_allocated_fds + num_new_fds) *
+ sizeof(inode->i_fds[0]));
if (!fds) {
ret = -ENOMEM;
goto out;
}
- memset(&fds[inode->num_allocated_fds], 0,
+ memset(&fds[inode->i_num_allocated_fds], 0,
num_new_fds * sizeof(fds[0]));
- inode->fds = fds;
- inode->num_allocated_fds += num_new_fds;
+ inode->i_fds = fds;
+ inode->i_num_allocated_fds += num_new_fds;
}
for (u16 i = 0; ; i++) {
- if (!inode->fds[i]) {
- struct wimlib_fd *fd = CALLOC(1, sizeof(*fd));
+ if (!inode->i_fds[i]) {
+ struct wimfs_fd *fd = CALLOC(1, sizeof(*fd));
if (!fd) {
ret = -ENOMEM;
break;
fd->idx = i;
fd->stream_id = stream_id;
*fd_ret = fd;
- inode->fds[i] = fd;
- inode->num_opened_fds++;
+ inode->i_fds[i] = fd;
+ inode->i_num_opened_fds++;
if (lte && !readonly)
lte->num_opened_fds++;
DEBUG("Allocated fd (idx = %u)", fd->idx);
return ret;
}
-static void inode_put_fd(struct inode *inode, struct wimlib_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->num_opened_fds != 0);
- wimlib_assert(fd->idx < inode->num_allocated_fds);
- wimlib_assert(inode->fds[fd->idx] == fd);
+ wimlib_assert(inode->i_num_opened_fds != 0);
+ wimlib_assert(fd->idx < inode->i_num_allocated_fds);
+ wimlib_assert(inode->i_fds[fd->idx] == fd);
- inode->fds[fd->idx] = NULL;
+ inode->i_fds[fd->idx] = NULL;
FREE(fd);
- if (--inode->num_opened_fds == 0 && inode->link_count == 0) {
+ if (--inode->i_num_opened_fds == 0 && inode->i_nlink == 0) {
pthread_mutex_unlock(&inode->i_mutex);
free_inode(inode);
} else {
}
}
-static int lte_put_fd(struct lookup_table_entry *lte, struct wimlib_fd *fd)
+static int lte_put_fd(struct wim_lookup_table_entry *lte, struct wimfs_fd *fd)
{
wimlib_assert(fd->f_lte == lte);
}
/* Close a file descriptor. */
-static int close_wimlib_fd(struct wimlib_fd *fd)
+static int close_wimfs_fd(struct wimfs_fd *fd)
{
int ret;
- DEBUG("Closing fd (inode = %lu, opened = %u, allocated = %u)",
- fd->f_inode->ino, fd->f_inode->num_opened_fds,
- fd->f_inode->num_allocated_fds);
+ 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)
return ret;
return 0;
}
+/*
+ * Add a new dentry with a new inode to a WIM image.
+ *
+ * @ctx: Context for the mounted WIM image.
+ * @path: Path to create the dentry at.
+ * @dentry_ret: Return the pointer to the dentry if successful.
+ *
+ * Returns 0 on success, or negative error number on failure.
+ */
static int create_dentry(struct wimfs_context *ctx, const char *path,
- struct dentry **dentry_ret)
+ struct wim_dentry **dentry_ret)
{
- struct dentry *parent;
- struct dentry *new;
+ struct wim_dentry *parent;
+ struct wim_dentry *new;
const char *basename;
parent = get_parent_dentry(ctx->wim, path);
if (!parent)
- return -ENOENT;
+ return -errno;
if (!dentry_is_directory(parent))
return -ENOTDIR;
new = new_dentry_with_inode(basename);
if (!new)
- return -ENOMEM;
+ return -errno;
- new->d_inode->resolved = 1;
- new->d_inode->ino = ctx->next_ino++;
+ new->d_inode->i_resolved = 1;
+ new->d_inode->i_ino = ctx->next_ino++;
dentry_add_child(parent, new);
- hlist_add_head(&new->d_inode->hlist, ctx->image_inode_list);
+ hlist_add_head(&new->d_inode->i_hlist, ctx->image_inode_list);
*dentry_ret = new;
return 0;
}
-/* Remove a dentry; i.e. remove a reference to the corresponding inode.
+/* 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
*
* 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 staging file is
- * unlinked.
+ * descriptors and no references remaining, it is freed, and the corresponding
+ * staging file is unlinked.
*/
-static void remove_dentry(struct dentry *dentry,
- struct lookup_table *lookup_table)
+static void remove_dentry(struct wim_dentry *dentry,
+ struct wim_lookup_table *lookup_table)
{
- struct inode *inode = dentry->d_inode;
- struct lookup_table_entry *lte;
+ struct wim_inode *inode = dentry->d_inode;
+ struct wim_lookup_table_entry *lte;
unsigned i;
- for (i = 0; i <= inode->num_ads; i++) {
+ for (i = 0; i <= inode->i_num_ads; i++) {
lte = inode_stream_lte_resolved(inode, i);
if (lte)
lte_decrement_refcnt(lte, lookup_table);
put_dentry(dentry);
}
-/* Transfers file attributes from a struct inode to a `stat' buffer.
+/* Transfers file attributes from a struct wim_inode to a `stat' buffer.
*
* The lookup table entry tells us which stream in the inode we are statting.
* For a named data stream, everything returned is the same as the unnamed data
* stream except possibly the size and block count. */
-static int inode_to_stbuf(const struct inode *inode,
- struct 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)
{
if (inode_is_symlink(inode))
stbuf->st_mode = S_IFLNK | 0777;
else
stbuf->st_mode = S_IFREG | 0755;
- stbuf->st_ino = (ino_t)inode->ino;
- stbuf->st_nlink = inode->link_count;
+ stbuf->st_ino = (ino_t)inode->i_ino;
+ stbuf->st_nlink = inode->i_nlink;
stbuf->st_uid = getuid();
stbuf->st_gid = getgid();
stbuf->st_size = 0;
}
- stbuf->st_atime = wim_timestamp_to_unix(inode->last_access_time);
- stbuf->st_mtime = wim_timestamp_to_unix(inode->last_write_time);
- stbuf->st_ctime = wim_timestamp_to_unix(inode->creation_time);
+ stbuf->st_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_blocks = (stbuf->st_size + 511) / 512;
return 0;
}
* writing.
*
* @name_ret: A location into which the a pointer to the newly allocated name of
- * the staging file is stored.
- * @return: The file descriptor for the new file. Returns -1 and sets errno on
- * error, for any reason possible from the creat() function.
+ * the staging file is stored.
+ *
+ * @ctx: Context for the WIM filesystem; this provides the name of the
+ * staging directory.
+ *
+ * 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, int open_flags,
- struct wimfs_context *ctx)
+static int create_staging_file(char **name_ret, struct wimfs_context *ctx)
{
size_t name_len;
char *name;
int fd;
int errno_save;
- name_len = ctx->staging_dir_name_len + 1 + SHA1_HASH_SIZE;
+ 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);
if (!name) {
errno = ENOMEM;
memcpy(name, ctx->staging_dir_name, ctx->staging_dir_name_len);
name[ctx->staging_dir_name_len] = '/';
randomize_char_array_with_alnum(name + ctx->staging_dir_name_len + 1,
- SHA1_HASH_SIZE);
+ STAGING_FILE_NAME_LEN);
name[name_len] = '\0';
* existing file, and try again if so */
} while (stat(name, &stbuf) == 0);
- if (errno != ENOENT)
- /* other error! */
+ if (errno != ENOENT) /* other error?! */
return -1;
/* doesn't exist--- ok */
DEBUG("Creating staging file `%s'", name);
- fd = open(name, open_flags | O_CREAT | O_TRUNC, 0600);
+ fd = open(name, O_WRONLY | O_CREAT | O_EXCL, 0600);
if (fd == -1) {
errno_save = errno;
FREE(name);
*
* Returns 0 on success or a negative error code on failure.
*/
-static int extract_resource_to_staging_dir(struct inode *inode,
+static int extract_resource_to_staging_dir(struct wim_inode *inode,
u32 stream_id,
- struct lookup_table_entry **lte,
+ struct wim_lookup_table_entry **lte,
off_t size,
struct wimfs_context *ctx)
{
char *staging_file_name;
int ret;
int fd;
- struct lookup_table_entry *old_lte, *new_lte;
+ struct wim_lookup_table_entry *old_lte, *new_lte;
off_t extract_size;
DEBUG("Extracting resource to staging dir: inode %"PRIu64", "
- "stream id %"PRIu32, inode->ino, stream_id);
+ "stream id %"PRIu32, inode->i_ino, stream_id);
old_lte = *lte;
old_lte->resource_location != RESOURCE_IN_STAGING_FILE);
/* Create the staging file */
- fd = create_staging_file(&staging_file_name, O_WRONLY, ctx);
+ fd = create_staging_file(&staging_file_name, ctx);
if (fd == -1)
return -errno;
/* Now deal with the lookup table entries. We may be able to re-use the
* existing entry, but we may have to create a new one instead. */
- if (old_lte && inode->link_count == old_lte->refcnt) {
+ if (old_lte && inode->i_nlink == old_lte->refcnt) {
/* The reference count of the existing lookup table entry is the
* same as the link count of the inode that contains the stream
* we're opening. Therefore, ALL the references to the lookup
* the inode containing a stream we're opening.
* Therefore, we need to split the lookup table entry.
*/
- wimlib_assert(old_lte->refcnt > inode->link_count);
+ wimlib_assert(old_lte->refcnt > inode->i_nlink);
DEBUG("Splitting lookup table entry "
- "(inode->link_count = %u, old_lte->refcnt = %u)",
- inode->link_count, old_lte->refcnt);
+ "(inode->i_nlink = %u, old_lte->refcnt = %u)",
+ inode->i_nlink, old_lte->refcnt);
}
new_lte = new_lookup_table_entry();
* file descriptors to the new lookup table entry. If there's
* an old lookup table entry, this number needs to be subtracted
* from the fd's opened to the old entry. */
- for (u16 i = 0, j = 0; j < inode->num_opened_fds; i++) {
- struct wimlib_fd *fd = inode->fds[i];
+ for (u16 i = 0, j = 0; j < inode->i_num_opened_fds; i++) {
+ struct wimfs_fd *fd = inode->i_fds[i];
if (fd) {
if (fd->stream_id == stream_id) {
wimlib_assert(fd->f_lte == old_lte);
new_lte->num_opened_fds);
if (old_lte) {
old_lte->num_opened_fds -= new_lte->num_opened_fds;
- old_lte->refcnt -= inode->link_count;
+ old_lte->refcnt -= inode->i_nlink;
}
}
- new_lte->refcnt = inode->link_count;
+ 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);
if (stream_id == 0)
- inode->lte = new_lte;
+ inode->i_lte = new_lte;
else
- for (u16 i = 0; i < inode->num_ads; i++)
- if (inode->ads_entries[i].stream_id == stream_id)
- inode->ads_entries[i].lte = new_lte;
+ 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);
return 0;
out_revert_fd_changes:
for (u16 i = 0, j = 0; j < new_lte->num_opened_fds; i++) {
- struct wimlib_fd *fd = inode->fds[i];
+ 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) {
}
}
-
/*
* Deletes the staging directory and all the files contained in it.
*/
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 {
+ wimlib_assert(<e->file_on_disk == <e->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)
+{
+ u16 num_opened_fds = inode->i_num_opened_fds;
+ for (u16 i = 0, j = 0; j < num_opened_fds; i++) {
+ struct wimfs_fd *fd = inode->i_fds[i];
+ if (fd) {
+ wimlib_assert(fd->f_inode == inode);
+ int ret = close_wimfs_fd(fd);
+ if (ret != 0)
+ return ret;
+ j++;
+ }
+ }
+ return 0;
+}
+
+/* Overwrites the WIM file, with changes saved. */
+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;
+
+ 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)
+ 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;
+ }
+
+ xml_update_image_info(w, w->current_image);
+ ret = wimlib_overwrite(w, write_flags, 0, progress_func);
+ if (ret != 0)
+ 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)
* Opens two POSIX message queue: one for sending messages from the unmount
* process to the daemon process, and one to go the other way. The names of the
* message queues, which must be system-wide unique, are be based on the mount
- * point. (There of course is still a possibility of a collision if one were to
- * unmount two identically named directories simultaneously...)
+ * point.
*
* @daemon specifies whether the calling process is the filesystem daemon or the
* unmount process.
/* Closes the message queues, which are allocated in static variables */
static void close_message_queues(struct wimfs_context *ctx)
{
+ DEBUG("Closing message queues");
mq_close(ctx->unmount_to_daemon_mq);
ctx->unmount_to_daemon_mq = (mqd_t)(-1);
mq_close(ctx->daemon_to_unmount_mq);
unlink_message_queues(ctx);
}
-struct unmount_message_header {
+
+struct unmount_msg_hdr {
u32 min_version;
u32 cur_version;
- u32 data_size;
+ u32 msg_type;
+ u32 msg_size;
+} PACKED;
+
+struct msg_unmount_request {
+ struct unmount_msg_hdr hdr;
+ u32 unmount_flags;
+ u8 want_progress_messages;
+} PACKED;
+
+struct msg_daemon_info {
+ struct unmount_msg_hdr hdr;
+ pid_t daemon_pid;
+ u32 mount_flags;
+} PACKED;
+
+struct msg_unmount_finished {
+ struct unmount_msg_hdr hdr;
+ int32_t status;
+} PACKED;
+
+struct msg_write_streams_progress {
+ struct unmount_msg_hdr hdr;
+ union wimlib_progress_info info;
+} PACKED;
+
+enum {
+ MSG_TYPE_UNMOUNT_REQUEST,
+ MSG_TYPE_DAEMON_INFO,
+ MSG_TYPE_WRITE_STREAMS_PROGRESS,
+ MSG_TYPE_UNMOUNT_FINISHED,
+ MSG_TYPE_MAX,
};
-struct unmount_request {
- struct unmount_message_header hdr;
- struct {
- u32 unmount_flags;
- } data;
+struct msg_handler_context_hdr {
+ int timeout_seconds;
};
-struct unmount_response {
- struct unmount_message_header hdr;
- struct {
- int32_t status;
- u32 mount_flags;
- } data;
+struct unmount_msg_handler_context {
+ struct msg_handler_context_hdr hdr;
+ pid_t daemon_pid;
+ int mount_flags;
+ int status;
+ wimlib_progress_func_t progress_func;
};
-static void inode_update_lte_ptr(struct inode *inode,
- struct lookup_table_entry *old_lte,
- struct lookup_table_entry *new_lte)
-{
- if (inode->lte == old_lte) {
- inode->lte = new_lte;
- } else {
- for (unsigned i = 0; i < inode->num_ads; i++) {
- if (inode->ads_entries[i].lte == old_lte) {
- inode->ads_entries[i].lte = new_lte;
- break;
- }
- }
+struct daemon_msg_handler_context {
+ struct msg_handler_context_hdr hdr;
+ struct wimfs_context *wimfs_ctx;
+};
+
+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 = {
+ .hdr = {
+ .min_version = WIMLIB_MAKEVERSION(1, 2, 1),
+ .cur_version = WIMLIB_VERSION_CODE,
+ .msg_type = MSG_TYPE_UNMOUNT_REQUEST,
+ .msg_size = sizeof(msg),
+ },
+ .unmount_flags = unmount_flags,
+ .want_progress_messages = want_progress_messages,
+ };
+
+ if (mq_send(mq, (void*)&msg, sizeof(msg), 1)) {
+ ERROR_WITH_ERRNO("Failed to communicate with filesystem daemon");
+ return WIMLIB_ERR_MQUEUE;
}
+ return 0;
}
-static int update_lte_of_staging_file(struct lookup_table_entry *lte,
- struct lookup_table *table)
+static int send_daemon_info_msg(mqd_t mq, pid_t pid, int mount_flags)
{
- struct lookup_table_entry *duplicate_lte;
- int ret;
- u8 hash[SHA1_HASH_SIZE];
- struct stat stbuf;
+ DEBUG("Sending daemon info msg (pid = %d, mount_flags=%x)",
+ pid, mount_flags);
- 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 {
- wimlib_assert(<e->file_on_disk == <e->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);
- }
+ struct msg_daemon_info msg = {
+ .hdr = {
+ .min_version = WIMLIB_MAKEVERSION(1, 2, 1),
+ .cur_version = WIMLIB_VERSION_CODE,
+ .msg_type = MSG_TYPE_DAEMON_INFO,
+ .msg_size = sizeof(msg),
+ },
+ .daemon_pid = pid,
+ .mount_flags = mount_flags,
+ };
+ if (mq_send(mq, (void*)&msg, sizeof(msg), 1)) {
+ ERROR_WITH_ERRNO("Failed to send daemon info to unmount process");
+ return WIMLIB_ERR_MQUEUE;
}
return 0;
}
-static int inode_close_fds(struct inode *inode)
+static void send_unmount_finished_msg(mqd_t mq, int status)
{
- u16 num_opened_fds = inode->num_opened_fds;
- for (u16 i = 0, j = 0; j < num_opened_fds; i++) {
- struct wimlib_fd *fd = inode->fds[i];
- if (fd) {
- wimlib_assert(fd->f_inode == inode);
- int ret = close_wimlib_fd(fd);
- if (ret != 0)
- return ret;
- j++;
+ DEBUG("Sending unmount finished msg");
+ struct msg_unmount_finished msg = {
+ .hdr = {
+ .min_version = WIMLIB_MAKEVERSION(1, 2, 1),
+ .cur_version = WIMLIB_VERSION_CODE,
+ .msg_type = MSG_TYPE_UNMOUNT_FINISHED,
+ .msg_size = sizeof(msg),
+ },
+ .status = status,
+ };
+ if (mq_send(mq, (void*)&msg, sizeof(msg), 1))
+ 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)
+{
+ if (msg == WIMLIB_PROGRESS_MSG_WRITE_STREAMS) {
+ struct msg_write_streams_progress msg = {
+ .hdr = {
+ .min_version = WIMLIB_MAKEVERSION(1, 2, 1),
+ .cur_version = WIMLIB_VERSION_CODE,
+ .msg_type = MSG_TYPE_WRITE_STREAMS_PROGRESS,
+ .msg_size = sizeof(msg),
+ },
+ .info = *info,
+ };
+ if (mq_send(wimfs_get_context()->daemon_to_unmount_mq,
+ (void*)&msg, sizeof(msg), 1))
+ {
+ ERROR_WITH_ERRNO("Failed to send progress information "
+ "to unmount process");
}
}
return 0;
}
-/* Overwrites the WIM file, with changes saved. */
-static int rebuild_wim(struct wimfs_context *ctx, int write_flags)
+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;
+ struct wimfs_context *wimfs_ctx;
+ int status = 0;
int ret;
- struct lookup_table_entry *lte, *tmp;
- WIMStruct *w = ctx->wim;
+ int unmount_flags;
+ wimlib_progress_func_t progress_func;
- 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)
- return ret;
+ DEBUG("Handling unmount request msg");
+
+ wimfs_ctx = handler_ctx->wimfs_ctx;
+ if (msg->hdr.msg_size < sizeof(*msg)) {
+ status = WIMLIB_ERR_INVALID_UNMOUNT_MESSAGE;
+ goto out;
}
- DEBUG("Calculating SHA1 checksums for all new staging files.");
- list_for_each_entry(lte, &ctx->staging_list, staging_list) {
- ret = update_lte_of_staging_file(lte, w->lookup_table);
- if (ret != 0)
- return ret;
+ unmount_flags = msg->unmount_flags;
+ if (msg->want_progress_messages)
+ progress_func = unmount_progress_func;
+ else
+ progress_func = NULL;
+
+ ret = send_daemon_info_msg(wimfs_ctx->daemon_to_unmount_mq, getpid(),
+ wimfs_ctx->mount_flags);
+ if (ret != 0) {
+ status = ret;
+ goto out;
}
- xml_update_image_info(w, w->current_image);
- ret = wimlib_overwrite(w, write_flags, 0, NULL);
- if (ret != 0)
- ERROR("Failed to commit changes to mounted WIM image");
- return ret;
+ if (wimfs_ctx->mount_flags & WIMLIB_MOUNT_FLAG_READWRITE) {
+ if (unmount_flags & WIMLIB_UNMOUNT_FLAG_COMMIT) {
+ int write_flags = 0;
+ if (unmount_flags & WIMLIB_UNMOUNT_FLAG_CHECK_INTEGRITY)
+ write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
+ if (unmount_flags & WIMLIB_UNMOUNT_FLAG_REBUILD)
+ write_flags |= WIMLIB_WRITE_FLAG_REBUILD;
+ if (unmount_flags & WIMLIB_UNMOUNT_FLAG_RECOMPRESS)
+ write_flags |= WIMLIB_WRITE_FLAG_RECOMPRESS;
+ status = rebuild_wim(wimfs_ctx, write_flags,
+ progress_func);
+ }
+ } else {
+ DEBUG("Read-only mount");
+ status = 0;
+ }
+
+out:
+ if (wimfs_ctx->mount_flags & WIMLIB_MOUNT_FLAG_READWRITE) {
+ ret = delete_staging_dir(wimfs_ctx);
+ if (ret != 0) {
+ ERROR("Failed to delete the staging directory");
+ if (status == 0)
+ status = ret;
+ }
+ }
+ send_unmount_finished_msg(wimfs_ctx->daemon_to_unmount_mq, status);
+ return MSG_BREAK_LOOP;
}
-/* Send a message to the filesystem daemon saying whether to commit or not. */
-static int send_unmount_request(struct wimfs_context *ctx, int unmount_flags)
+static int msg_daemon_info_handler(const void *_msg, void *_handler_ctx)
{
- int ret;
- struct unmount_request msg;
+ const struct msg_daemon_info *msg = _msg;
+ struct unmount_msg_handler_context *handler_ctx = _handler_ctx;
- msg.hdr.min_version = WIMLIB_MAKEVERSION(1, 2, 0);
- msg.hdr.cur_version = WIMLIB_VERSION_CODE;
- msg.hdr.data_size = sizeof(msg.data);
- msg.data.unmount_flags = unmount_flags;
+ DEBUG("Handling daemon info msg");
+ if (msg->hdr.msg_size < sizeof(*msg))
+ return WIMLIB_ERR_INVALID_UNMOUNT_MESSAGE;
+ handler_ctx->daemon_pid = msg->daemon_pid;
+ handler_ctx->mount_flags = msg->mount_flags;
+ handler_ctx->hdr.timeout_seconds = 1;
+ DEBUG("pid of daemon is %d; mount flags were %#x",
+ handler_ctx->daemon_pid,
+ handler_ctx->mount_flags);
+ return 0;
+}
- ret = mq_send(ctx->unmount_to_daemon_mq, (void*)&msg,
- sizeof(msg), 1);
- if (ret == -1) {
- ERROR_WITH_ERRNO("Failed to notify filesystem daemon whether "
- "we want to commit changes or not");
- return WIMLIB_ERR_MQUEUE;
+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;
+
+ if (msg->hdr.msg_size < sizeof(*msg))
+ return WIMLIB_ERR_INVALID_UNMOUNT_MESSAGE;
+ if (handler_ctx->progress_func) {
+ handler_ctx->progress_func(WIMLIB_PROGRESS_MSG_WRITE_STREAMS,
+ &msg->info);
}
return 0;
}
-static int receive_unmount_request(struct wimfs_context *ctx,
- int *unmount_flags)
+static int msg_unmount_finished_handler(const void *_msg, void *_handler_ctx)
{
- void *mailbox;
- long msgsize;
- struct timeval now;
- struct timespec timeout;
- ssize_t bytes_received;
- struct unmount_request *msg;
- int ret;
+ const struct msg_unmount_finished *msg = _msg;
+ struct unmount_msg_handler_context *handler_ctx = _handler_ctx;
- ret = get_mailbox(ctx->unmount_to_daemon_mq,
- sizeof(struct unmount_request),
- &msgsize, &mailbox);
- if (ret != 0)
- return ret;
+ DEBUG("Handling unmount finished message");
+ if (msg->hdr.msg_size < sizeof(*msg))
+ return WIMLIB_ERR_INVALID_UNMOUNT_MESSAGE;
+ handler_ctx->status = msg->status;
+ DEBUG("status is %d", handler_ctx->status);
+ return MSG_BREAK_LOOP;
+}
- /* Wait at most 3 seconds before giving up and discarding changes. */
- gettimeofday(&now, NULL);
- timeout.tv_sec = now.tv_sec + 3;
- timeout.tv_nsec = now.tv_usec * 1000;
+static int unmount_timed_out_cb(void *_handler_ctx)
+{
+ struct unmount_msg_handler_context *handler_ctx = _handler_ctx;
- bytes_received = mq_timedreceive(ctx->unmount_to_daemon_mq, mailbox,
- msgsize, NULL, &timeout);
- msg = mailbox;
- if (bytes_received == -1) {
- ERROR_WITH_ERRNO("mq_timedreceive()");
- ERROR("Not committing.");
- ret = WIMLIB_ERR_MQUEUE;
- } else if (bytes_received < sizeof(struct unmount_message_header) ||
- bytes_received != sizeof(struct unmount_message_header) + msg->hdr.data_size) {
- ERROR("Received invalid unmount request");
- ret = WIMLIB_ERR_INVALID_UNMOUNT_MESSAGE;
- } else if (WIMLIB_VERSION_CODE < msg->hdr.min_version) {
- ERROR("Cannot understand the unmount request. "
- "Please upgrade wimlib to at least v%d.%d.%d",
- WIMLIB_GET_MAJOR_VERSION(msg->hdr.min_version),
- WIMLIB_GET_MINOR_VERSION(msg->hdr.min_version),
- WIMLIB_GET_PATCH_VERSION(msg->hdr.min_version));
- ret = WIMLIB_ERR_INVALID_UNMOUNT_MESSAGE;
+ if (handler_ctx->daemon_pid == 0) {
+ goto out_crashed;
} else {
- *unmount_flags = msg->data.unmount_flags;
- ret = 0;
+ 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;
+ }
}
- FREE(mailbox);
- return ret;
+out_crashed:
+ ERROR("The filesystem daemon has crashed! Changes to the "
+ "WIM may not have been commited.");
+ return WIMLIB_ERR_FILESYSTEM_DAEMON_CRASHED;
}
-static void send_unmount_response(struct wimfs_context *ctx, int status)
+static int daemon_timed_out_cb(void *_handler_ctx)
{
- struct unmount_response response;
- response.hdr.min_version = WIMLIB_MAKEVERSION(1, 2, 0);
- response.hdr.cur_version = WIMLIB_VERSION_CODE;
- response.hdr.data_size = sizeof(response.data);
- response.data.status = status;
- response.data.mount_flags = ctx->mount_flags;
- if (mq_send(ctx->daemon_to_unmount_mq, (void*)&response,
- sizeof(response), 1))
- ERROR_WITH_ERRNO("Failed to send status to unmount process");
+ ERROR("Timed out waiting for unmount request! "
+ "Changes to the mounted WIM will not be committed.");
+ return WIMLIB_ERR_TIMEOUT;
}
-/* Wait for a message from the filesytem daemon indicating whether the
- * filesystem was unmounted successfully. This may
- * take a long time if a big WIM file needs to be rewritten.
- *
- * Wait at most 600??? seconds before giving up and returning an error. Either
- * it's a really big WIM file, or (more likely) the filesystem daemon has
- * crashed or failed for some reason.
- *
- * XXX come up with some method to determine if the filesystem daemon has really
- * crashed or not.
- *
- * XXX Idea: have mount daemon write its PID into the WIM file header? No, this
- * wouldn't work because we know the directory but not the WIM file...
- */
-static int receive_unmount_response(struct wimfs_context *ctx)
+typedef int (*msg_handler_t)(const void *_msg, void *_handler_ctx);
+
+struct msg_handler_callbacks {
+ int (*timed_out)(void * _handler_ctx);
+ msg_handler_t msg_handlers[MSG_TYPE_MAX];
+};
+
+static const struct msg_handler_callbacks unmount_msg_handler_callbacks = {
+ .timed_out = unmount_timed_out_cb,
+ .msg_handlers = {
+ [MSG_TYPE_DAEMON_INFO] = msg_daemon_info_handler,
+ [MSG_TYPE_WRITE_STREAMS_PROGRESS] = msg_write_streams_progress_handler,
+ [MSG_TYPE_UNMOUNT_FINISHED] = msg_unmount_finished_handler,
+ },
+};
+
+static const struct msg_handler_callbacks daemon_msg_handler_callbacks = {
+ .timed_out = daemon_timed_out_cb,
+ .msg_handlers = {
+ [MSG_TYPE_UNMOUNT_REQUEST] = msg_unmount_request_handler,
+ },
+};
+
+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)
{
- long msgsize;
- void *mailbox;
struct timeval now;
struct timespec timeout;
ssize_t bytes_received;
+ struct unmount_msg_hdr *hdr;
int ret;
- struct unmount_response *msg;
-
- ret = get_mailbox(ctx->daemon_to_unmount_mq,
- sizeof(struct unmount_response), &msgsize, &mailbox);
- if (ret != 0)
- return ret;
-
- DEBUG("Waiting for message telling us whether the unmount was "
- "successful or not.");
gettimeofday(&now, NULL);
- timeout.tv_sec = now.tv_sec + 600;
+ timeout.tv_sec = now.tv_sec + handler_ctx->timeout_seconds;
timeout.tv_nsec = now.tv_usec * 1000;
- bytes_received = mq_timedreceive(ctx->daemon_to_unmount_mq,
- mailbox, msgsize, NULL, &timeout);
- msg = mailbox;
+
+ bytes_received = mq_timedreceive(mq, mailbox,
+ mailbox_size, NULL, &timeout);
+ hdr = mailbox;
if (bytes_received == -1) {
if (errno == ETIMEDOUT) {
- ERROR("Timed out- probably the filesystem daemon "
- "crashed and the WIM was not written "
- "successfully.");
ret = WIMLIB_ERR_TIMEOUT;
} else {
- ERROR_WITH_ERRNO("mq_receive()");
+ ERROR_WITH_ERRNO("mq_timedreceive()");
ret = WIMLIB_ERR_MQUEUE;
}
- } else if (bytes_received < sizeof(struct unmount_message_header) ||
- bytes_received != sizeof(struct unmount_message_header) + msg->hdr.data_size ||
- WIMLIB_VERSION_CODE < msg->hdr.min_version) {
- ERROR("Received invalid unmount response");
+ } else if (bytes_received < sizeof(*hdr) ||
+ bytes_received != hdr->msg_size) {
ret = WIMLIB_ERR_INVALID_UNMOUNT_MESSAGE;
- } else if (WIMLIB_VERSION_CODE < msg->hdr.min_version) {
- ERROR("Cannot understand the unmount response. "
- "Please upgrade wimlib to at least v%d.%d.%d",
- WIMLIB_GET_MAJOR_VERSION(msg->hdr.min_version),
- WIMLIB_GET_MINOR_VERSION(msg->hdr.min_version),
- WIMLIB_GET_PATCH_VERSION(msg->hdr.min_version));
+ } else if (WIMLIB_VERSION_CODE < hdr->min_version) {
+ /*ERROR("Cannot understand the received message. "*/
+ /*"Please upgrade wimlib to at least v%d.%d.%d",*/
+ /*WIMLIB_GET_MAJOR_VERSION(hdr->min_version),*/
+ /*WIMLIB_GET_MINOR_VERSION(hdr->min_version),*/
+ /*WIMLIB_GET_PATCH_VERSION(hdr->min_version));*/
+ ret = MSG_VERSION_TOO_HIGH;
+ } else if (hdr->msg_type >= MSG_TYPE_MAX) {
+ ret = WIMLIB_ERR_INVALID_UNMOUNT_MESSAGE;
+ } else if (msg_handlers[hdr->msg_type] == NULL) {
ret = WIMLIB_ERR_INVALID_UNMOUNT_MESSAGE;
} else {
- ret = msg->data.status;
- if (ret) {
- ERROR("A failure status (%d) was returned "
- "by the filesystem daemon", ret);
+ ret = msg_handlers[hdr->msg_type](mailbox, handler_ctx);
+ }
+ return ret;
+}
+
+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;
+ void *mailbox;
+ int ret;
+
+ DEBUG("Entering message loop");
+
+ ret = get_mailbox(mq, MAX_MSG_SIZE, &msgsize, &mailbox);
+ if (ret != 0)
+ return ret;
+ while (1) {
+ ret = receive_message(mq, handler_ctx,
+ callbacks->msg_handlers,
+ msgsize, mailbox);
+ if (ret == 0 || ret == MSG_VERSION_TOO_HIGH) {
+ continue;
+ } else if (ret == MSG_BREAK_LOOP) {
+ ret = 0;
+ break;
+ } else if (ret == WIMLIB_ERR_TIMEOUT) {
+ if (callbacks->timed_out)
+ ret = callbacks->timed_out(handler_ctx);
+ if (ret == 0)
+ continue;
+ else
+ break;
+ } else {
+ ERROR_WITH_ERRNO("Error communicating with "
+ "filesystem daemon");
+ break;
}
}
FREE(mailbox);
+ DEBUG("Exiting message loop");
return ret;
}
}
/* Parent */
- ret = wait(&status);
+ ret = waitpid(pid, &status, 0);
if (ret == -1) {
ERROR_WITH_ERRNO("Failed to wait for fusermount process to "
"terminate");
return WIMLIB_ERR_FUSERMOUNT;
}
- if (status != 0) {
- if (status == WIMLIB_ERR_FUSERMOUNT)
- ERROR("Could not find the `fusermount' program");
- else
- ERROR("fusermount exited with status %d", status);
+ if (!WIFEXITED(status)) {
+ ERROR("'fusermount' did not terminate normally!");
+ return WIMLIB_ERR_FUSERMOUNT;
+ }
- /* Try again, but with the `umount' program. This is required
- * on other FUSE implementations such as FreeBSD's that do not
- * have a `fusermount' program. */
+ status = WEXITSTATUS(status);
- pid = fork();
- if (pid == -1) {
- ERROR_WITH_ERRNO("Failed to fork()");
- return WIMLIB_ERR_FORK;
- }
- if (pid == 0) {
- /* Child */
- execlp("umount", "umount", dir, NULL);
- ERROR_WITH_ERRNO("Failed to execute `umount'");
- exit(WIMLIB_ERR_FUSERMOUNT);
- }
+ if (status == 0)
+ return 0;
- /* Parent */
- ret = wait(&status);
- if (ret == -1) {
- ERROR_WITH_ERRNO("Failed to wait for `umount' process to "
- "terminate");
- return WIMLIB_ERR_FUSERMOUNT;
- }
- if (status != 0) {
- ERROR("`umount' exited with failure status");
- return WIMLIB_ERR_FUSERMOUNT;
- }
+ if (status != WIMLIB_ERR_FUSERMOUNT)
+ return WIMLIB_ERR_FUSERMOUNT;
+
+ /* Try again, but with the `umount' program. This is required on other
+ * FUSE implementations such as FreeBSD's that do not have a
+ * `fusermount' program. */
+ ERROR("Falling back to 'umount'. Note: you may need to be "
+ "root for this to work");
+ pid = fork();
+ if (pid == -1) {
+ ERROR_WITH_ERRNO("Failed to fork()");
+ return WIMLIB_ERR_FORK;
+ }
+ if (pid == 0) {
+ /* Child */
+ execlp("umount", "umount", dir, NULL);
+ ERROR_WITH_ERRNO("Failed to execute `umount'");
+ exit(WIMLIB_ERR_FUSERMOUNT);
+ }
+
+ /* Parent */
+ ret = waitpid(pid, &status, 0);
+ if (ret == -1) {
+ ERROR_WITH_ERRNO("Failed to wait for `umount' process to "
+ "terminate");
+ return WIMLIB_ERR_FUSERMOUNT;
+ }
+ if (status != 0) {
+ ERROR("`umount' did not successfully complete");
+ return WIMLIB_ERR_FUSERMOUNT;
}
return 0;
}
static int wimfs_chmod(const char *path, mode_t mask)
{
- struct dentry *dentry;
+ struct wim_dentry *dentry;
struct wimfs_context *ctx = wimfs_get_context();
- struct inode *inode;
+ struct wim_inode *inode;
struct stat stbuf;
int ret;
/* Called when the filesystem is unmounted. */
static void wimfs_destroy(void *p)
{
- /* The `imagex unmount' command, which is running in a separate process
- * and is executing the wimlib_unmount() function, will send this
- * process a `struct unmount_request' through a message queue that
- * specifies some unmount options, such as other to commit changes or
- * not. */
-
- int ret;
- int unmount_flags;
- struct wimfs_context *ctx;
- int status;
-
- ctx = wimfs_get_context();
- if (open_message_queues(ctx, true))
- return;
-
- ret = receive_unmount_request(ctx, &unmount_flags);
- status = ret;
- if (ret == 0) {
- if (ctx->mount_flags & WIMLIB_MOUNT_FLAG_READWRITE) {
- if (unmount_flags & WIMLIB_UNMOUNT_FLAG_COMMIT) {
- int write_flags = 0;
- if (unmount_flags & WIMLIB_UNMOUNT_FLAG_CHECK_INTEGRITY)
- write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
- if (unmount_flags & WIMLIB_UNMOUNT_FLAG_REBUILD)
- write_flags |= WIMLIB_WRITE_FLAG_REBUILD;
- if (unmount_flags & WIMLIB_UNMOUNT_FLAG_RECOMPRESS)
- write_flags |= WIMLIB_WRITE_FLAG_RECOMPRESS;
- status = rebuild_wim(ctx, write_flags);
- }
- ret = delete_staging_dir(ctx);
- if (ret != 0) {
- ERROR("Failed to delete the staging directory");
- if (status == 0)
- status = ret;
- }
- } else {
- DEBUG("Read-only mount");
- }
+ struct wimfs_context *wimfs_ctx = wimfs_get_context();
+ if (open_message_queues(wimfs_ctx, true) == 0) {
+ struct daemon_msg_handler_context handler_ctx = {
+ .hdr = {
+ .timeout_seconds = 5,
+ },
+ .wimfs_ctx = wimfs_ctx,
+ };
+ message_loop(wimfs_ctx->unmount_to_daemon_mq,
+ &daemon_msg_handler_callbacks,
+ &handler_ctx.hdr);
+ close_message_queues(wimfs_ctx);
}
- send_unmount_response(ctx, status);
- close_message_queues(ctx);
}
#if 0
static int wimfs_fallocate(const char *path, int mode,
off_t offset, off_t len, struct fuse_file_info *fi)
{
- struct wimlib_fd *fd = (struct wimlib_fd*)(uintptr_t)fi->fh;
+ 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);
}
static int wimfs_fgetattr(const char *path, struct stat *stbuf,
struct fuse_file_info *fi)
{
- struct wimlib_fd *fd = (struct wimlib_fd*)(uintptr_t)fi->fh;
+ 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)
{
- struct wimlib_fd *fd = (struct wimlib_fd*)(uintptr_t)fi->fh;
+ struct wimfs_fd *fd = (struct wimfs_fd*)(uintptr_t)fi->fh;
int ret = ftruncate(fd->staging_fd, size);
if (ret != 0)
return -errno;
*/
static int wimfs_getattr(const char *path, struct stat *stbuf)
{
- struct dentry *dentry;
- struct lookup_table_entry *lte;
+ struct wim_dentry *dentry;
+ struct wim_lookup_table_entry *lte;
int ret;
struct wimfs_context *ctx = wimfs_get_context();
size_t size)
{
int ret;
- struct inode *inode;
- struct ads_entry *ads_entry;
+ struct wim_inode *inode;
+ struct wim_ads_entry *ads_entry;
size_t res_size;
- struct lookup_table_entry *lte;
+ struct wim_lookup_table_entry *lte;
struct wimfs_context *ctx = wimfs_get_context();
if (!(ctx->mount_flags & WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_XATTR))
inode = wim_pathname_to_inode(ctx->wim, path);
if (!inode)
- return -ENOENT;
+ return -errno;
ads_entry = inode_get_ads_entry(inode, name, NULL);
if (!ads_entry)
/* Create a hard link */
static int wimfs_link(const char *to, const char *from)
{
- struct dentry *from_dentry, *from_dentry_parent;
+ struct wim_dentry *from_dentry, *from_dentry_parent;
const char *link_name;
- struct inode *inode;
- struct lookup_table_entry *lte;
+ struct wim_inode *inode;
+ struct wim_lookup_table_entry *lte;
WIMStruct *w = wimfs_get_WIMStruct();
u16 i;
inode = wim_pathname_to_inode(w, to);
if (!inode)
- return -ENOENT;
-
- if (inode->attributes & FILE_ATTRIBUTE_REPARSE_POINT)
- return -EEXIST;
+ return -errno;
- if (inode->attributes & FILE_ATTRIBUTE_DIRECTORY)
+ if (inode->i_attributes & (FILE_ATTRIBUTE_DIRECTORY |
+ FILE_ATTRIBUTE_REPARSE_POINT))
return -EPERM;
from_dentry_parent = get_parent_dentry(w, from);
if (!from_dentry_parent)
- return -ENOENT;
+ return -errno;
if (!dentry_is_directory(from_dentry_parent))
return -ENOTDIR;
return -EEXIST;
from_dentry = new_dentry(link_name);
if (!from_dentry)
- return -ENOMEM;
+ return -errno;
inode_add_dentry(from_dentry, inode);
from_dentry->d_inode = inode;
- inode->link_count++;
+ inode->i_nlink++;
- for (i = 0; i <= inode->num_ads; i++) {
+ for (i = 0; i <= inode->i_num_ads; i++) {
lte = inode_stream_lte_resolved(inode, i);
if (lte)
lte->refcnt++;
static int wimfs_listxattr(const char *path, char *list, size_t size)
{
size_t needed_size;
- struct inode *inode;
+ struct wim_inode *inode;
struct wimfs_context *ctx = wimfs_get_context();
u16 i;
char *p;
inode = wim_pathname_to_inode(ctx->wim, path);
if (!inode)
- return -ENOENT;
+ return -errno;
if (size == 0) {
needed_size = 0;
- for (i = 0; i < inode->num_ads; i++)
- needed_size += inode->ads_entries[i].stream_name_utf8_len + 6;
+ 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->num_ads; i++) {
- needed_size = inode->ads_entries[i].stream_name_utf8_len + 6;
+ 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)
return -ERANGE;
p += sprintf(p, "user.%s",
- inode->ads_entries[i].stream_name_utf8) + 1;
+ inode->i_ads_entries[i].stream_name_utf8) + 1;
size -= needed_size;
}
return p - list;
* @mode is currently ignored. */
static int wimfs_mkdir(const char *path, mode_t mode)
{
- struct dentry *dentry;
+ struct wim_dentry *dentry;
int ret;
ret = create_dentry(wimfs_get_context(), path, &dentry);
if (ret == 0)
- dentry->d_inode->attributes = FILE_ATTRIBUTE_DIRECTORY;
+ dentry->d_inode->i_attributes = FILE_ATTRIBUTE_DIRECTORY;
return ret;
}
if ((ctx->mount_flags & WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_WINDOWS)
&& (stream_name = path_stream_name(path))) {
/* Make an alternate data stream */
- struct ads_entry *new_entry;
- struct inode *inode;
+ struct wim_ads_entry *new_entry;
+ struct wim_inode *inode;
char *p = (char*)stream_name - 1;
wimlib_assert(*p == ':');
inode = wim_pathname_to_inode(ctx->wim, path);
if (!inode)
- return -ENOENT;
- if (inode->attributes &
+ return -errno;
+ if (inode->i_attributes &
(FILE_ATTRIBUTE_REPARSE_POINT | FILE_ATTRIBUTE_DIRECTORY))
return -ENOENT;
if (inode_get_ads_entry(inode, stream_name, NULL))
return -ENOMEM;
return 0;
} else {
- struct dentry *dentry;
+ struct wim_dentry *dentry;
int ret;
/* Make a normal file (not an alternate data stream) */
ret = create_dentry(ctx, path, &dentry);
if (ret == 0)
- dentry->d_inode->attributes = FILE_ATTRIBUTE_NORMAL;
+ dentry->d_inode->i_attributes = FILE_ATTRIBUTE_NORMAL;
return ret;
}
}
/* Open a file. */
static int wimfs_open(const char *path, struct fuse_file_info *fi)
{
- struct dentry *dentry;
- struct lookup_table_entry *lte;
+ struct wim_dentry *dentry;
+ struct wim_lookup_table_entry *lte;
int ret;
- struct wimlib_fd *fd;
- struct inode *inode;
+ struct wimfs_fd *fd;
+ struct wim_inode *inode;
u16 stream_idx;
u32 stream_id;
struct wimfs_context *ctx = wimfs_get_context();
if (stream_idx == 0)
stream_id = 0;
else
- stream_id = inode->ads_entries[stream_idx - 1].stream_id;
+ stream_id = inode->i_ads_entries[stream_idx - 1].stream_id;
/* 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
return ret;
}
- ret = alloc_wimlib_fd(inode, stream_id, lte, &fd,
- wimfs_ctx_readonly(ctx));
+ ret = alloc_wimfs_fd(inode, stream_id, lte, &fd,
+ wimfs_ctx_readonly(ctx));
if (ret != 0)
return ret;
fd->staging_fd = open(lte->staging_file_name, fi->flags);
if (fd->staging_fd == -1) {
int errno_save = errno;
- close_wimlib_fd(fd);
+ close_wimfs_fd(fd);
return -errno_save;
}
}
/* Opens a directory. */
static int wimfs_opendir(const char *path, struct fuse_file_info *fi)
{
- struct inode *inode;
+ struct wim_inode *inode;
int ret;
- struct wimlib_fd *fd = NULL;
+ struct wimfs_fd *fd = NULL;
struct wimfs_context *ctx = wimfs_get_context();
WIMStruct *w = ctx->wim;
inode = wim_pathname_to_inode(w, path);
if (!inode)
- return -ENOENT;
+ return -errno;
if (!inode_is_directory(inode))
return -ENOTDIR;
- ret = alloc_wimlib_fd(inode, 0, NULL, &fd, wimfs_ctx_readonly(ctx));
+ ret = alloc_wimfs_fd(inode, 0, NULL, &fd, wimfs_ctx_readonly(ctx));
fi->fh = (uintptr_t)fd;
return ret;
}
static int wimfs_read(const char *path, char *buf, size_t size,
off_t offset, struct fuse_file_info *fi)
{
- struct wimlib_fd *fd = (struct wimlib_fd*)(uintptr_t)fi->fh;
+ struct wimfs_fd *fd = (struct wimfs_fd*)(uintptr_t)fi->fh;
ssize_t ret;
if (!fd)
wimlib_assert(fd->f_lte->staging_file_name);
wimlib_assert(fd->staging_fd != -1);
- DEBUG("Seek to offset %zu", offset);
+ DEBUG("Seek to offset %"PRIu64, offset);
if (lseek(fd->staging_fd, offset, SEEK_SET) == -1)
return -errno;
fuse_fill_dir_t filler;
};
-static int dentry_fuse_fill(struct 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,
static int wimfs_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
off_t offset, struct fuse_file_info *fi)
{
- struct wimlib_fd *fd = (struct wimlib_fd*)(uintptr_t)fi->fh;
- struct inode *inode;
+ struct wimfs_fd *fd = (struct wimfs_fd*)(uintptr_t)fi->fh;
+ struct wim_inode *inode;
if (!fd)
return -EBADF;
filler(buf, ".", NULL, 0);
filler(buf, "..", NULL, 0);
- return for_dentry_in_rbtree(inode->children.rb_node,
+ return for_dentry_in_rbtree(inode->i_children.rb_node,
dentry_fuse_fill, &fill_params);
}
static int wimfs_readlink(const char *path, char *buf, size_t buf_len)
{
struct wimfs_context *ctx = wimfs_get_context();
- struct inode *inode = wim_pathname_to_inode(ctx->wim, path);
+ struct wim_inode *inode = wim_pathname_to_inode(ctx->wim, path);
int ret;
if (!inode)
- return -ENOENT;
+ return -errno;
if (!inode_is_symlink(inode))
return -EINVAL;
/* Close a file. */
static int wimfs_release(const char *path, struct fuse_file_info *fi)
{
- struct wimlib_fd *fd = (struct wimlib_fd*)(uintptr_t)fi->fh;
- return close_wimlib_fd(fd);
+ 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)
{
- struct wimlib_fd *fd = (struct wimlib_fd*)(uintptr_t)fi->fh;
- return close_wimlib_fd(fd);
+ struct wimfs_fd *fd = (struct wimfs_fd*)(uintptr_t)fi->fh;
+ return close_wimfs_fd(fd);
}
#ifdef ENABLE_XATTR
/* Remove an alternate data stream through the XATTR interface */
static int wimfs_removexattr(const char *path, const char *name)
{
- struct inode *inode;
- struct ads_entry *ads_entry;
+ struct wim_inode *inode;
+ struct wim_ads_entry *ads_entry;
u16 ads_idx;
struct wimfs_context *ctx = wimfs_get_context();
inode = wim_pathname_to_inode(ctx->wim, path);
if (!inode)
- return -ENOENT;
+ return -errno;
ads_entry = inode_get_ads_entry(inode, name, &ads_idx);
if (!ads_entry)
/* Renames a file or directory. See rename (3) */
static int wimfs_rename(const char *from, const char *to)
{
- struct dentry *src;
- struct dentry *dst;
- struct dentry *parent_of_dst;
- char *file_name_utf16 = NULL, *file_name_utf8 = NULL;
- u16 file_name_utf16_len, file_name_utf8_len;
+ struct wim_dentry *src;
+ struct wim_dentry *dst;
+ struct wim_dentry *parent_of_dst;
WIMStruct *w = wimfs_get_WIMStruct();
int ret;
src = get_dentry(w, from);
if (!src)
- return -ENOENT;
+ return -errno;
dst = get_dentry(w, to);
- ret = get_names(&file_name_utf16, &file_name_utf8,
- &file_name_utf16_len, &file_name_utf8_len,
- path_basename(to));
- if (ret != 0)
- return -ENOMEM;
-
if (dst) {
/* Destination file exists */
return -ENOTEMPTY;
}
parent_of_dst = dst->parent;
- remove_dentry(dst, w->lookup_table);
} else {
/* Destination does not exist */
parent_of_dst = get_parent_dentry(w, to);
if (!parent_of_dst)
- return -ENOENT;
+ return -errno;
if (!dentry_is_directory(parent_of_dst))
return -ENOTDIR;
}
- FREE(src->file_name);
- FREE(src->file_name_utf8);
- src->file_name = file_name_utf16;
- src->file_name_utf8 = file_name_utf8;
- src->file_name_len = file_name_utf16_len;
- src->file_name_utf8_len = file_name_utf8_len;
-
+ 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;
/* Remove a directory */
static int wimfs_rmdir(const char *path)
{
- struct dentry *dentry;
+ struct wim_dentry *parent, *dentry;
WIMStruct *w = wimfs_get_WIMStruct();
dentry = get_dentry(w, path);
if (!dentry)
- return -ENOENT;
+ return -errno;
+
+ if (!dentry_is_directory(dentry))
+ return -ENOTDIR;
- if (!dentry_is_empty_directory(dentry))
+ if (dentry_has_children(dentry))
return -ENOTEMPTY;
remove_dentry(dentry, w->lookup_table);
static int wimfs_setxattr(const char *path, const char *name,
const char *value, size_t size, int flags)
{
- struct ads_entry *existing_ads_entry;
- struct ads_entry *new_ads_entry;
- struct lookup_table_entry *existing_lte;
- struct lookup_table_entry *lte;
- struct inode *inode;
+ struct wim_ads_entry *existing_ads_entry;
+ struct wim_ads_entry *new_ads_entry;
+ struct wim_lookup_table_entry *existing_lte;
+ struct wim_lookup_table_entry *lte;
+ struct wim_inode *inode;
u8 value_hash[SHA1_HASH_SIZE];
u16 ads_idx;
struct wimfs_context *ctx = wimfs_get_context();
inode = wim_pathname_to_inode(ctx->wim, path);
if (!inode)
- return -ENOENT;
+ return -errno;
existing_ads_entry = inode_get_ads_entry(inode, name, &ads_idx);
if (existing_ads_entry) {
static int wimfs_symlink(const char *to, const char *from)
{
struct wimfs_context *ctx = wimfs_get_context();
- struct dentry *dentry;
+ struct wim_dentry *dentry;
int ret;
ret = create_dentry(ctx, from, &dentry);
if (ret == 0) {
- dentry->d_inode->attributes = FILE_ATTRIBUTE_REPARSE_POINT;
- dentry->d_inode->reparse_tag = WIM_IO_REPARSE_TAG_SYMLINK;
+ dentry->d_inode->i_attributes = FILE_ATTRIBUTE_REPARSE_POINT;
+ dentry->d_inode->i_reparse_tag = WIM_IO_REPARSE_TAG_SYMLINK;
if (inode_set_symlink(dentry->d_inode, to,
ctx->wim->lookup_table, NULL))
{
/* Reduce the size of a file */
static int wimfs_truncate(const char *path, off_t size)
{
- struct dentry *dentry;
- struct lookup_table_entry *lte;
+ struct wim_dentry *dentry;
+ struct wim_lookup_table_entry *lte;
int ret;
u16 stream_idx;
u32 stream_id;
- struct inode *inode;
+ struct wim_inode *inode;
struct wimfs_context *ctx = wimfs_get_context();
ret = lookup_resource(ctx->wim, path, get_lookup_flags(ctx),
if (stream_idx == 0)
stream_id = 0;
else
- stream_id = inode->ads_entries[stream_idx - 1].stream_id;
+ stream_id = inode->i_ads_entries[stream_idx - 1].stream_id;
if (lte->resource_location == RESOURCE_IN_STAGING_FILE) {
ret = truncate(lte->staging_file_name, size);
/* Unlink a non-directory or alternate data stream */
static int wimfs_unlink(const char *path)
{
- struct dentry *dentry;
- struct lookup_table_entry *lte;
+ struct wim_dentry *dentry;
+ struct wim_lookup_table_entry *lte;
int ret;
u16 stream_idx;
struct wimfs_context *ctx = wimfs_get_context();
*/
static int wimfs_utimens(const char *path, const struct timespec tv[2])
{
- struct dentry *dentry;
- struct inode *inode;
+ struct wim_dentry *dentry;
+ struct wim_inode *inode;
WIMStruct *w = wimfs_get_WIMStruct();
dentry = get_dentry(w, path);
if (!dentry)
- return -ENOENT;
+ return -errno;
inode = dentry->d_inode;
if (tv[0].tv_nsec != UTIME_OMIT) {
if (tv[0].tv_nsec == UTIME_NOW)
- inode->last_access_time = get_wim_timestamp();
+ inode->i_last_access_time = get_wim_timestamp();
else
- inode->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->last_write_time = get_wim_timestamp();
+ inode->i_last_write_time = get_wim_timestamp();
else
- inode->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)
{
- struct dentry *dentry;
- struct inode *inode;
+ struct wim_dentry *dentry;
+ struct wim_inode *inode;
WIMStruct *w = wimfs_get_WIMStruct();
dentry = get_dentry(w, path);
if (!dentry)
- return -ENOENT;
+ return -errno;
inode = dentry->d_inode;
- inode->last_write_time = unix_timestamp_to_wim(times->modtime);
- inode->last_access_time = unix_timestamp_to_wim(times->actime);
+ inode->i_last_write_time = unix_timestamp_to_wim(times->modtime);
+ inode->i_last_access_time = unix_timestamp_to_wim(times->actime);
return 0;
}
#endif
static int wimfs_write(const char *path, const char *buf, size_t size,
off_t offset, struct fuse_file_info *fi)
{
- struct wimlib_fd *fd = (struct wimlib_fd*)(uintptr_t)fi->fh;
+ struct wimfs_fd *fd = (struct wimfs_fd*)(uintptr_t)fi->fh;
int ret;
u64 now;
return -errno;
now = get_wim_timestamp();
- fd->f_inode->last_write_time = now;
- fd->f_inode->last_access_time = now;
+ fd->f_inode->i_last_write_time = now;
+ fd->f_inode->i_last_access_time = now;
return ret;
}
#endif
.write = wimfs_write,
+ /* wimfs keeps file descriptor structures (struct wimfs_fd), so there is
+ * no need to have the file path provided on operations such as read()
+ * where only the file descriptor is needed. */
#if FUSE_MAJOR_VERSION > 2 || (FUSE_MAJOR_VERSION == 2 && FUSE_MINOR_VERSION >= 8)
.flag_nullpath_ok = 1,
#endif
char *argv[16];
int ret;
char *dir_copy;
- struct lookup_table *joined_tab, *wim_tab_save;
- struct image_metadata *imd;
+ struct wim_lookup_table *joined_tab, *wim_tab_save;
+ struct wim_image_metadata *imd;
struct wimfs_context ctx;
struct hlist_node *cur_node;
- struct inode *inode;
+ struct wim_inode *inode;
DEBUG("Mount: wim = %p, image = %d, dir = %s, flags = %d, ",
wim, image, dir, mount_flags);
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()");
goto out;
}
+ /* Use default stream interface if one was not specified */
if (!(mount_flags & (WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_NONE |
WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_XATTR |
WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_WINDOWS)))
argv[argc++] = "-d";
/*
- * We provide the use_ino option because we are going to assign inode
- * numbers oursides. The inodes will be given unique numbers in the
- * assign_inode_numbers() function, and the static variable @next_ino is
- * set to the next available inode number.
- */
+ * We provide the use_ino option to the FUSE mount because we are going
+ * to assign inode numbers ourselves. */
char optstring[256] =
"use_ino"
",subtype=wimfs"
/* 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, hlist) {
+ hlist_for_each_entry(inode, cur_node, &imd->inode_list, i_hlist) {
inode_resolve_ltes(inode, wim->lookup_table);
- inode->ino = ctx.next_ino++;
+ inode->i_ino = ctx.next_ino++;
}
- /*ctx.next_ino = assign_inode_numbers(&imd->inode_list);*/
DEBUG("(next_ino = %"PRIu64")", ctx.next_ino);
DEBUG("Calling fuse_main()");
ret = fuse_main(argc, argv, &wimfs_operations, &ctx);
DEBUG("Returned from fuse_main() (ret = %d)", ret);
+
if (ret)
ret = WIMLIB_ERR_FUSE;
out_free_dir_copy:
wimlib_progress_func_t progress_func)
{
int ret;
- struct wimfs_context ctx;
+ struct wimfs_context wimfs_ctx;
- init_wimfs_context(&ctx);
+ init_wimfs_context(&wimfs_ctx);
- ret = set_message_queue_names(&ctx, dir);
+ ret = set_message_queue_names(&wimfs_ctx, dir);
if (ret != 0)
goto out;
- ret = open_message_queues(&ctx, false);
+ ret = open_message_queues(&wimfs_ctx, false);
if (ret != 0)
goto out_free_message_queue_names;
- ret = send_unmount_request(&ctx, unmount_flags);
+ ret = send_unmount_request_msg(wimfs_ctx.unmount_to_daemon_mq,
+ unmount_flags,
+ progress_func != NULL);
if (ret != 0)
goto out_close_message_queues;
ret = execute_fusermount(dir);
if (ret != 0)
goto out_close_message_queues;
- ret = receive_unmount_response(&ctx);
+
+ struct unmount_msg_handler_context handler_ctx = {
+ .hdr = {
+ .timeout_seconds = 5,
+ },
+ .daemon_pid = 0,
+ .progress_func = progress_func,
+ };
+
+ ret = message_loop(wimfs_ctx.daemon_to_unmount_mq,
+ &unmount_msg_handler_callbacks,
+ &handler_ctx.hdr);
+ if (ret == 0)
+ ret = handler_ctx.status;
out_close_message_queues:
- close_message_queues(&ctx);
+ close_message_queues(&wimfs_ctx);
out_free_message_queue_names:
- free_message_queue_names(&ctx);
+ free_message_queue_names(&wimfs_ctx);
out:
return ret;
}
git://wimlib.net / wimlib / blobdiff