inode = *pinode;
cifsInfo = CIFS_I(inode);
cifsInfo->cifsAttrs = attr;
+ cifsInfo->delete_pending = pfindData->DeletePending ? true : false;
cFYI(1, ("Old time %ld", cifsInfo->time));
cifsInfo->time = jiffies;
cFYI(1, ("New time %ld", cifsInfo->time));
&info_buf, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
- if (rc != -EOPNOTSUPP && rc != -EINVAL)
+ if (rc == 0) {
+ cifsInode->cifsAttrs = dosattr;
+ goto out;
+ } else if (rc != -EOPNOTSUPP && rc != -EINVAL)
goto out;
}
set_via_filehandle:
rc = CIFSSMBSetFileInfo(xid, pTcon, &info_buf, netfid, netpid);
+ if (!rc)
+ cifsInode->cifsAttrs = dosattr;
+
if (open_file == NULL)
CIFSSMBClose(xid, pTcon, netfid);
else
return rc;
}
+/*
+ * open the given file (if it isn't already), set the DELETE_ON_CLOSE bit
+ * and rename it to a random name that hopefully won't conflict with
+ * anything else.
+ */
+static int
+cifs_rename_pending_delete(char *full_path, struct dentry *dentry, int xid)
+{
+ int oplock = 0;
+ int rc;
+ __u16 netfid;
+ struct inode *inode = dentry->d_inode;
+ struct cifsInodeInfo *cifsInode = CIFS_I(inode);
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct cifsTconInfo *tcon = cifs_sb->tcon;
+ __u32 dosattr, origattr;
+ FILE_BASIC_INFO *info_buf = NULL;
+
+ rc = CIFSSMBOpen(xid, tcon, full_path, FILE_OPEN,
+ DELETE|FILE_WRITE_ATTRIBUTES, CREATE_NOT_DIR,
+ &netfid, &oplock, NULL, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+ if (rc != 0)
+ goto out;
+
+ origattr = cifsInode->cifsAttrs;
+ if (origattr == 0)
+ origattr |= ATTR_NORMAL;
+
+ dosattr = origattr & ~ATTR_READONLY;
+ if (dosattr == 0)
+ dosattr |= ATTR_NORMAL;
+ dosattr |= ATTR_HIDDEN;
+
+ /* set ATTR_HIDDEN and clear ATTR_READONLY, but only if needed */
+ if (dosattr != origattr) {
+ info_buf = kzalloc(sizeof(*info_buf), GFP_KERNEL);
+ if (info_buf == NULL) {
+ rc = -ENOMEM;
+ goto out_close;
+ }
+ info_buf->Attributes = cpu_to_le32(dosattr);
+ rc = CIFSSMBSetFileInfo(xid, tcon, info_buf, netfid,
+ current->tgid);
+ /* although we would like to mark the file hidden
+ if that fails we will still try to rename it */
+ if (rc != 0) {
+ cifsInode->cifsAttrs = dosattr;
+ else
+ dosattr = origattr; /* since not able to change them */
+ }
+
+ /* rename the file */
+ rc = CIFSSMBRenameOpenFile(xid, tcon, netfid, NULL, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ if (rc != 0) {
+ rc = -ETXTBSY;
+ goto undo_setattr;
+ }
+
+ /* try to set DELETE_ON_CLOSE */
+ if (!cifsInode->delete_pending) {
+ rc = CIFSSMBSetFileDisposition(xid, tcon, true, netfid,
+ current->tgid);
+ /*
+ * some samba versions return -ENOENT when we try to set the
+ * file disposition here. Likely a samba bug, but work around
+ * it for now. This means that some cifsXXX files may hang
+ * around after they shouldn't.
+ *
+ * BB: remove this hack after more servers have the fix
+ */
+ if (rc == -ENOENT)
+ rc = 0;
+ else if (rc != 0) {
+ rc = -ETXTBSY;
+ goto undo_rename;
+ }
+ cifsInode->delete_pending = true;
+ }
+
+out_close:
+ CIFSSMBClose(xid, tcon, netfid);
+out:
+ kfree(info_buf);
+ return rc;
+
+ /*
+ * reset everything back to the original state. Don't bother
+ * dealing with errors here since we can't do anything about
+ * them anyway.
+ */
+undo_rename:
+ CIFSSMBRenameOpenFile(xid, tcon, netfid, dentry->d_name.name,
+ cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+undo_setattr:
+ if (dosattr != origattr) {
+ info_buf->Attributes = cpu_to_le32(origattr);
+ if (!CIFSSMBSetFileInfo(xid, tcon, info_buf, netfid,
+ current->tgid))
+ cifsInode->cifsAttrs = origattr;
+ }
+
+ goto out_close;
+}
+
int cifs_unlink(struct inode *dir, struct dentry *dentry)
{
int rc = 0;
int xid;
char *full_path = NULL;
struct inode *inode = dentry->d_inode;
- struct cifsInodeInfo *cifsInode;
+ struct cifsInodeInfo *cifsInode = CIFS_I(inode);
struct super_block *sb = dir->i_sb;
struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
struct cifsTconInfo *tcon = cifs_sb->tcon;
- struct iattr *attrs;
- __u32 dosattr;
+ struct iattr *attrs = NULL;
+ __u32 dosattr = 0, origattr = 0;
cFYI(1, ("cifs_unlink, dir=0x%p, dentry=0x%p", dir, dentry));
goto psx_del_no_retry;
}
+retry_std_delete:
rc = CIFSSMBDelFile(xid, tcon, full_path, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+
psx_del_no_retry:
if (!rc) {
if (inode)
} else if (rc == -ENOENT) {
d_drop(dentry);
} else if (rc == -ETXTBSY) {
- int oplock = 0;
- __u16 netfid;
-
- rc = CIFSSMBOpen(xid, tcon, full_path, FILE_OPEN, DELETE,
- CREATE_NOT_DIR | CREATE_DELETE_ON_CLOSE,
- &netfid, &oplock, NULL, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- if (rc == 0) {
- CIFSSMBRenameOpenFile(xid, tcon, netfid, NULL,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- CIFSSMBClose(xid, tcon, netfid);
- if (inode)
- drop_nlink(inode);
- }
- } else if (rc == -EACCES) {
- /* try only if r/o attribute set in local lookup data? */
+ rc = cifs_rename_pending_delete(full_path, dentry, xid);
+ if (rc == 0)
+ drop_nlink(inode);
+ } else if (rc == -EACCES && dosattr == 0) {
attrs = kzalloc(sizeof(*attrs), GFP_KERNEL);
if (attrs == NULL) {
rc = -ENOMEM;
}
/* try to reset dos attributes */
- cifsInode = CIFS_I(inode);
- dosattr = cifsInode->cifsAttrs & ~ATTR_READONLY;
+ origattr = cifsInode->cifsAttrs;
+ if (origattr == 0)
+ origattr |= ATTR_NORMAL;
+ dosattr = origattr & ~ATTR_READONLY;
if (dosattr == 0)
dosattr |= ATTR_NORMAL;
dosattr |= ATTR_HIDDEN;
rc = cifs_set_file_info(inode, attrs, xid, full_path, dosattr);
- kfree(attrs);
if (rc != 0)
goto out_reval;
- rc = CIFSSMBDelFile(xid, tcon, full_path, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- if (rc == 0) {
- if (inode)
- drop_nlink(inode);
- } else if (rc == -ETXTBSY) {
- int oplock = 0;
- __u16 netfid;
- rc = CIFSSMBOpen(xid, tcon, full_path,
- FILE_OPEN, DELETE,
- CREATE_NOT_DIR |
- CREATE_DELETE_ON_CLOSE,
- &netfid, &oplock, NULL,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- if (rc == 0) {
- CIFSSMBRenameOpenFile(xid, tcon,
- netfid, NULL,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- CIFSSMBClose(xid, tcon, netfid);
- if (inode)
- drop_nlink(inode);
- }
- /* BB if rc = -ETXTBUSY goto the rename logic BB */
- }
+ goto retry_std_delete;
}
+
+ /* undo the setattr if we errored out and it's needed */
+ if (rc != 0 && dosattr != 0)
+ cifs_set_file_info(inode, attrs, xid, full_path, origattr);
+
out_reval:
if (inode) {
cifsInode = CIFS_I(inode);
}
dir->i_ctime = dir->i_mtime = current_fs_time(sb);
cifsInode = CIFS_I(dir);
- cifsInode->time = 0; /* force revalidate of dir as well */
+ CIFS_I(dir)->time = 0; /* force revalidate of dir as well */
kfree(full_path);
+ kfree(attrs);
FreeXid(xid);
return rc;
}
int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode)
{
- int rc = 0;
+ int rc = 0, tmprc;
int xid;
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *pTcon;
kfree(pInfo);
goto mkdir_get_info;
}
+
/* Is an i_ino of zero legal? */
/* Are there sanity checks we can use to ensure that
the server is really filling in that field? */
if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) &&
(mode & S_IWUGO) == 0) {
FILE_BASIC_INFO pInfo;
+ struct cifsInodeInfo *cifsInode;
+ u32 dosattrs;
+
memset(&pInfo, 0, sizeof(pInfo));
- pInfo.Attributes = cpu_to_le32(ATTR_READONLY);
- CIFSSMBSetPathInfo(xid, pTcon, full_path,
- &pInfo, cifs_sb->local_nls,
+ cifsInode = CIFS_I(newinode);
+ dosattrs = cifsInode->cifsAttrs|ATTR_READONLY;
+ pInfo.Attributes = cpu_to_le32(dosattrs);
+ tmprc = CIFSSMBSetPathInfo(xid, pTcon,
+ full_path, &pInfo,
+ cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
+ if (tmprc == 0)
+ cifsInode->cifsAttrs = dosattrs;
}
if (direntry->d_inode) {
if (cifs_sb->mnt_cifs_flags &
return rc;
}
+static int
+cifs_do_rename(int xid, struct dentry *from_dentry, const char *fromPath,
+ struct dentry *to_dentry, const char *toPath)
+{
+ struct cifs_sb_info *cifs_sb = CIFS_SB(from_dentry->d_sb);
+ struct cifsTconInfo *pTcon = cifs_sb->tcon;
+ __u16 srcfid;
+ int oplock, rc;
+
+ /* try path-based rename first */
+ rc = CIFSSMBRename(xid, pTcon, fromPath, toPath, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+
+ /*
+ * don't bother with rename by filehandle unless file is busy and
+ * source Note that cross directory moves do not work with
+ * rename by filehandle to various Windows servers.
+ */
+ if (rc == 0 || rc != -ETXTBSY)
+ return rc;
+
+ /* open the file to be renamed -- we need DELETE perms */
+ rc = CIFSSMBOpen(xid, pTcon, fromPath, FILE_OPEN, DELETE,
+ CREATE_NOT_DIR, &srcfid, &oplock, NULL,
+ cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+
+ if (rc == 0) {
+ rc = CIFSSMBRenameOpenFile(xid, pTcon, srcfid,
+ (const char *) to_dentry->d_name.name,
+ cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+
+ CIFSSMBClose(xid, pTcon, srcfid);
+ }
+
+ return rc;
+}
+
int cifs_rename(struct inode *source_inode, struct dentry *source_direntry,
struct inode *target_inode, struct dentry *target_direntry)
{
- char *fromName;
- char *toName;
+ char *fromName = NULL;
+ char *toName = NULL;
struct cifs_sb_info *cifs_sb_source;
struct cifs_sb_info *cifs_sb_target;
struct cifsTconInfo *pTcon;
+ FILE_UNIX_BASIC_INFO *info_buf_source = NULL;
+ FILE_UNIX_BASIC_INFO *info_buf_target;
int xid;
- int rc = 0;
-
- xid = GetXid();
+ int rc;
cifs_sb_target = CIFS_SB(target_inode->i_sb);
cifs_sb_source = CIFS_SB(source_inode->i_sb);
pTcon = cifs_sb_source->tcon;
+ xid = GetXid();
+
+ /*
+ * BB: this might be allowed if same server, but different share.
+ * Consider adding support for this
+ */
if (pTcon != cifs_sb_target->tcon) {
- FreeXid(xid);
- return -EXDEV; /* BB actually could be allowed if same server,
- but different share.
- Might eventually add support for this */
+ rc = -EXDEV;
+ goto cifs_rename_exit;
}
- /* we already have the rename sem so we do not need to grab it again
- here to protect the path integrity */
+ /*
+ * we already have the rename sem so we do not need to
+ * grab it again here to protect the path integrity
+ */
fromName = build_path_from_dentry(source_direntry);
+ if (fromName == NULL) {
+ rc = -ENOMEM;
+ goto cifs_rename_exit;
+ }
+
toName = build_path_from_dentry(target_direntry);
- if ((fromName == NULL) || (toName == NULL)) {
+ if (toName == NULL) {
rc = -ENOMEM;
goto cifs_rename_exit;
}
- rc = CIFSSMBRename(xid, pTcon, fromName, toName,
- cifs_sb_source->local_nls,
- cifs_sb_source->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ rc = cifs_do_rename(xid, source_direntry, fromName,
+ target_direntry, toName);
+
if (rc == -EEXIST) {
- /* check if they are the same file because rename of hardlinked
- files is a noop */
- FILE_UNIX_BASIC_INFO *info_buf_source;
- FILE_UNIX_BASIC_INFO *info_buf_target;
-
- info_buf_source =
- kmalloc(2 * sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL);
- if (info_buf_source != NULL) {
+ if (pTcon->unix_ext) {
+ /*
+ * Are src and dst hardlinks of same inode? We can
+ * only tell with unix extensions enabled
+ */
+ info_buf_source =
+ kmalloc(2 * sizeof(FILE_UNIX_BASIC_INFO),
+ GFP_KERNEL);
+ if (info_buf_source == NULL)
+ goto unlink_target;
+
info_buf_target = info_buf_source + 1;
- if (pTcon->unix_ext)
- rc = CIFSSMBUnixQPathInfo(xid, pTcon, fromName,
- info_buf_source,
- cifs_sb_source->local_nls,
- cifs_sb_source->mnt_cifs_flags &
+ rc = CIFSSMBUnixQPathInfo(xid, pTcon, fromName,
+ info_buf_source,
+ cifs_sb_source->local_nls,
+ cifs_sb_source->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
- /* else rc is still EEXIST so will fall through to
- unlink the target and retry rename */
- if (rc == 0) {
- rc = CIFSSMBUnixQPathInfo(xid, pTcon, toName,
- info_buf_target,
+ if (rc != 0)
+ goto unlink_target;
+
+ rc = CIFSSMBUnixQPathInfo(xid, pTcon,
+ toName, info_buf_target,
cifs_sb_target->local_nls,
/* remap based on source sb */
cifs_sb_source->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- }
- if ((rc == 0) &&
- (info_buf_source->UniqueId ==
- info_buf_target->UniqueId)) {
- /* do not rename since the files are hardlinked which
- is a noop */
- } else {
- /* we either can not tell the files are hardlinked
- (as with Windows servers) or files are not
- hardlinked so delete the target manually before
- renaming to follow POSIX rather than Windows
- semantics */
- cifs_unlink(target_inode, target_direntry);
- rc = CIFSSMBRename(xid, pTcon, fromName,
- toName,
- cifs_sb_source->local_nls,
- cifs_sb_source->mnt_cifs_flags
- & CIFS_MOUNT_MAP_SPECIAL_CHR);
- }
- kfree(info_buf_source);
- } /* if we can not get memory just leave rc as EEXIST */
- }
-
- if (rc)
- cFYI(1, ("rename rc %d", rc));
-
- if ((rc == -EIO) || (rc == -EEXIST)) {
- int oplock = 0;
- __u16 netfid;
-
- /* BB FIXME Is Generic Read correct for rename? */
- /* if renaming directory - we should not say CREATE_NOT_DIR,
- need to test renaming open directory, also GENERIC_READ
- might not right be right access to request */
- rc = CIFSSMBOpen(xid, pTcon, fromName, FILE_OPEN, GENERIC_READ,
- CREATE_NOT_DIR, &netfid, &oplock, NULL,
- cifs_sb_source->local_nls,
- cifs_sb_source->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- if (rc == 0) {
- rc = CIFSSMBRenameOpenFile(xid, pTcon, netfid, toName,
- cifs_sb_source->local_nls,
- cifs_sb_source->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
- CIFSSMBClose(xid, pTcon, netfid);
- }
+
+ if (rc == 0 && (info_buf_source->UniqueId ==
+ info_buf_target->UniqueId))
+ /* same file, POSIX says that this is a noop */
+ goto cifs_rename_exit;
+ } /* else ... BB we could add the same check for Windows by
+ checking the UniqueId via FILE_INTERNAL_INFO */
+unlink_target:
+ /*
+ * we either can not tell the files are hardlinked (as with
+ * Windows servers) or files are not hardlinked. Delete the
+ * target manually before renaming to follow POSIX rather than
+ * Windows semantics
+ */
+ cifs_unlink(target_inode, target_direntry);
+ rc = cifs_do_rename(xid, source_direntry, fromName,
+ target_direntry, toName);
}
cifs_rename_exit:
+ kfree(info_buf_source);
kfree(fromName);
kfree(toName);
FreeXid(xid);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff