* fs/cifs/dir.c
*
* vfs operations that deal with dentries
- *
+ *
* Copyright (C) International Business Machines Corp., 2002,2005
* Author(s): Steve French (sfrench@us.ibm.com)
*
static void
renew_parental_timestamps(struct dentry *direntry)
{
- /* BB check if there is a way to get the kernel to do this or if we really need this */
+ /* BB check if there is a way to get the kernel to do this or if we
+ really need this */
do {
direntry->d_time = jiffies;
direntry = direntry->d_parent;
- } while (!IS_ROOT(direntry));
+ } while (!IS_ROOT(direntry));
}
/* Note: caller must free return buffer */
char *full_path;
char dirsep;
- if(direntry == NULL)
+ if (direntry == NULL)
return NULL; /* not much we can do if dentry is freed and
we need to reopen the file after it was closed implicitly
when the server crashed */
dirsep = CIFS_DIR_SEP(CIFS_SB(direntry->d_sb));
pplen = CIFS_SB(direntry->d_sb)->prepathlen;
cifs_bp_rename_retry:
- namelen = pplen;
+ namelen = pplen;
for (temp = direntry; !IS_ROOT(temp);) {
namelen += (1 + temp->d_name.len);
temp = temp->d_parent;
- if(temp == NULL) {
- cERROR(1,("corrupt dentry"));
+ if (temp == NULL) {
+ cERROR(1, ("corrupt dentry"));
return NULL;
}
}
full_path = kmalloc(namelen+1, GFP_KERNEL);
- if(full_path == NULL)
+ if (full_path == NULL)
return full_path;
full_path[namelen] = 0; /* trailing null */
for (temp = direntry; !IS_ROOT(temp);) {
cFYI(0, ("name: %s", full_path + namelen));
}
temp = temp->d_parent;
- if(temp == NULL) {
- cERROR(1,("corrupt dentry"));
+ if (temp == NULL) {
+ cERROR(1, ("corrupt dentry"));
kfree(full_path);
return NULL;
}
cERROR(1,
("did not end path lookup where expected namelen is %d",
namelen));
- /* presumably this is only possible if racing with a rename
+ /* presumably this is only possible if racing with a rename
of one of the parent directories (we can not lock the dentries
above us to prevent this, but retrying should be harmless) */
kfree(full_path);
since the '\' is a valid posix character so we can not switch
those safely to '/' if any are found in the middle of the prepath */
/* BB test paths to Windows with '/' in the midst of prepath */
- strncpy(full_path,CIFS_SB(direntry->d_sb)->prepath,pplen);
+ strncpy(full_path, CIFS_SB(direntry->d_sb)->prepath, pplen);
return full_path;
}
pTcon = cifs_sb->tcon;
full_path = build_path_from_dentry(direntry);
- if(full_path == NULL) {
+ if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
}
- if(nd && (nd->flags & LOOKUP_OPEN)) {
+ if (nd && (nd->flags & LOOKUP_OPEN)) {
int oflags = nd->intent.open.flags;
desiredAccess = 0;
write_only = TRUE;
}
- if((oflags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))
+ if ((oflags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))
disposition = FILE_CREATE;
- else if((oflags & (O_CREAT | O_TRUNC)) == (O_CREAT | O_TRUNC))
+ else if ((oflags & (O_CREAT | O_TRUNC)) == (O_CREAT | O_TRUNC))
disposition = FILE_OVERWRITE_IF;
- else if((oflags & O_CREAT) == O_CREAT)
+ else if ((oflags & O_CREAT) == O_CREAT)
disposition = FILE_OPEN_IF;
else {
- cFYI(1,("Create flag not set in create function"));
+ cFYI(1, ("Create flag not set in create function"));
}
}
- /* BB add processing to set equivalent of mode - e.g. via CreateX with ACLs */
+ /* BB add processing to set equivalent of mode - e.g. via CreateX with
+ ACLs */
if (oplockEnabled)
oplock = REQ_OPLOCK;
- buf = kmalloc(sizeof(FILE_ALL_INFO),GFP_KERNEL);
- if(buf == NULL) {
+ buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
+ if (buf == NULL) {
kfree(full_path);
FreeXid(xid);
return -ENOMEM;
}
- if (cifs_sb->tcon->ses->capabilities & CAP_NT_SMBS)
+ if (cifs_sb->tcon->ses->capabilities & CAP_NT_SMBS)
rc = CIFSSMBOpen(xid, pTcon, full_path, disposition,
desiredAccess, CREATE_NOT_DIR,
&fileHandle, &oplock, buf, cifs_sb->local_nls,
else
rc = -EIO; /* no NT SMB support fall into legacy open below */
- if(rc == -EIO) {
+ if (rc == -EIO) {
/* old server, retry the open legacy style */
rc = SMBLegacyOpen(xid, pTcon, full_path, disposition,
desiredAccess, CREATE_NOT_DIR,
&fileHandle, &oplock, buf, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
- }
+ }
if (rc) {
cFYI(1, ("cifs_create returned 0x%x", rc));
} else {
then we now have to set the mode if possible */
if ((cifs_sb->tcon->ses->capabilities & CAP_UNIX) &&
(oplock & CIFS_CREATE_ACTION))
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode,
(__u64)current->fsuid,
(__u64)current->fsgid,
0 /* dev */,
- cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
+ cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
} else {
CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode,
(__u64)-1,
0 /* dev */,
cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
+ cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
}
else {
- /* BB implement mode setting via Windows security descriptors */
- /* eg CIFSSMBWinSetPerms(xid,pTcon,full_path,mode,-1,-1,local_nls);*/
- /* could set r/o dos attribute if mode & 0222 == 0 */
+ /* BB implement mode setting via Windows security
+ descriptors e.g. */
+ /* CIFSSMBWinSetPerms(xid,pTcon,path,mode,-1,-1,nls);*/
+
+ /* Could set r/o dos attribute if mode & 0222 == 0 */
}
/* BB server might mask mode so we have to query for Unix case*/
if (pTcon->ses->capabilities & CAP_UNIX)
rc = cifs_get_inode_info_unix(&newinode, full_path,
- inode->i_sb,xid);
+ inode->i_sb, xid);
else {
rc = cifs_get_inode_info(&newinode, full_path,
- buf, inode->i_sb,xid);
- if(newinode) {
+ buf, inode->i_sb, xid);
+ if (newinode) {
newinode->i_mode = mode;
- if((oplock & CIFS_CREATE_ACTION) &&
- (cifs_sb->mnt_cifs_flags &
+ if ((oplock & CIFS_CREATE_ACTION) &&
+ (cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_SET_UID)) {
newinode->i_uid = current->fsuid;
newinode->i_gid = current->fsgid;
direntry->d_op = &cifs_dentry_ops;
d_instantiate(direntry, newinode);
}
- if((nd->flags & LOOKUP_OPEN) == FALSE) {
+ if ((nd->flags & LOOKUP_OPEN) == FALSE) {
/* mknod case - do not leave file open */
CIFSSMBClose(xid, pTcon, fileHandle);
- } else if(newinode) {
+ } else if (newinode) {
pCifsFile =
kzalloc(sizeof (struct cifsFileInfo), GFP_KERNEL);
- if(pCifsFile == NULL)
+ if (pCifsFile == NULL)
goto cifs_create_out;
pCifsFile->netfid = fileHandle;
pCifsFile->pid = current->tgid;
init_MUTEX(&pCifsFile->fh_sem);
mutex_init(&pCifsFile->lock_mutex);
INIT_LIST_HEAD(&pCifsFile->llist);
- atomic_set(&pCifsFile->wrtPending,0);
+ atomic_set(&pCifsFile->wrtPending, 0);
- /* set the following in open now
+ /* set the following in open now
pCifsFile->pfile = file; */
write_lock(&GlobalSMBSeslock);
- list_add(&pCifsFile->tlist,&pTcon->openFileList);
+ list_add(&pCifsFile->tlist, &pTcon->openFileList);
pCifsInode = CIFS_I(newinode);
- if(pCifsInode) {
+ if (pCifsInode) {
/* if readable file instance put first in list*/
if (write_only == TRUE) {
- list_add_tail(&pCifsFile->flist,
+ list_add_tail(&pCifsFile->flist,
&pCifsInode->openFileList);
} else {
list_add(&pCifsFile->flist,
&pCifsInode->openFileList);
}
- if((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
+ if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
pCifsInode->clientCanCacheAll = TRUE;
pCifsInode->clientCanCacheRead = TRUE;
cFYI(1,("Exclusive Oplock for inode %p",
newinode));
- } else if((oplock & 0xF) == OPLOCK_READ)
+ } else if ((oplock & 0xF) == OPLOCK_READ)
pCifsInode->clientCanCacheRead = TRUE;
}
write_unlock(&GlobalSMBSeslock);
}
- }
+ }
cifs_create_out:
kfree(buf);
kfree(full_path);
return rc;
}
-int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
- dev_t device_number)
+int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
+ dev_t device_number)
{
int rc = -EPERM;
int xid;
pTcon = cifs_sb->tcon;
full_path = build_path_from_dentry(direntry);
- if(full_path == NULL)
+ if (full_path == NULL)
rc = -ENOMEM;
else if (pTcon->ses->capabilities & CAP_UNIX) {
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
rc = CIFSSMBUnixSetPerms(xid, pTcon, full_path,
- mode,(__u64)current->fsuid,(__u64)current->fsgid,
+ mode, (__u64)current->fsuid,
+ (__u64)current->fsgid,
device_number, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
+ cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
} else {
rc = CIFSSMBUnixSetPerms(xid, pTcon,
full_path, mode, (__u64)-1, (__u64)-1,
device_number, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
+ cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
}
- if(!rc) {
+ if (!rc) {
rc = cifs_get_inode_info_unix(&newinode, full_path,
- inode->i_sb,xid);
+ inode->i_sb, xid);
if (pTcon->nocase)
direntry->d_op = &cifs_ci_dentry_ops;
else
direntry->d_op = &cifs_dentry_ops;
- if(rc == 0)
+ if (rc == 0)
d_instantiate(direntry, newinode);
}
} else {
- if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
int oplock = 0;
u16 fileHandle;
FILE_ALL_INFO * buf;
- cFYI(1,("sfu compat create special file"));
+ cFYI(1, ("sfu compat create special file"));
- buf = kmalloc(sizeof(FILE_ALL_INFO),GFP_KERNEL);
- if(buf == NULL) {
+ buf = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
+ if (buf == NULL) {
kfree(full_path);
FreeXid(xid);
return -ENOMEM;
rc = CIFSSMBOpen(xid, pTcon, full_path,
FILE_CREATE, /* fail if exists */
- GENERIC_WRITE /* BB would
+ GENERIC_WRITE /* BB would
WRITE_OWNER | WRITE_DAC be better? */,
/* Create a file and set the
file attribute to SYSTEM */
CREATE_NOT_DIR | CREATE_OPTION_SPECIAL,
&fileHandle, &oplock, buf,
cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
+ cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
/* BB FIXME - add handling for backlevel servers
which need legacy open and check for all
- calls to SMBOpen for fallback to
- SMBLeagcyOpen */
- if(!rc) {
+ calls to SMBOpen for fallback to SMBLeagcyOpen */
+ if (!rc) {
/* BB Do not bother to decode buf since no
local inode yet to put timestamps in,
but we can reuse it safely */
int bytes_written;
struct win_dev *pdev;
pdev = (struct win_dev *)buf;
- if(S_ISCHR(mode)) {
+ if (S_ISCHR(mode)) {
memcpy(pdev->type, "IntxCHR", 8);
pdev->major =
cpu_to_le64(MAJOR(device_number));
- pdev->minor =
+ pdev->minor =
cpu_to_le64(MINOR(device_number));
rc = CIFSSMBWrite(xid, pTcon,
fileHandle,
sizeof(struct win_dev),
0, &bytes_written, (char *)pdev,
NULL, 0);
- } else if(S_ISBLK(mode)) {
+ } else if (S_ISBLK(mode)) {
memcpy(pdev->type, "IntxBLK", 8);
pdev->major =
cpu_to_le64(MAJOR(device_number));
struct dentry *
-cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct nameidata *nd)
+cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
+ struct nameidata *nd)
{
int xid;
int rc = 0; /* to get around spurious gcc warning, set to zero here */
(" parent inode = 0x%p name is: %s and dentry = 0x%p",
parent_dir_inode, direntry->d_name.name, direntry));
- /* BB Add check of incoming data - e.g. frame not longer than maximum SMB - let server check the namelen BB */
-
/* check whether path exists */
cifs_sb = CIFS_SB(parent_dir_inode->i_sb);
deadlock in the cases (beginning of sys_rename itself)
in which we already have the sb rename sem */
full_path = build_path_from_dentry(direntry);
- if(full_path == NULL) {
+ if (full_path == NULL) {
FreeXid(xid);
return ERR_PTR(-ENOMEM);
}
if (pTcon->ses->capabilities & CAP_UNIX)
rc = cifs_get_inode_info_unix(&newInode, full_path,
- parent_dir_inode->i_sb,xid);
+ parent_dir_inode->i_sb, xid);
else
rc = cifs_get_inode_info(&newInode, full_path, NULL,
- parent_dir_inode->i_sb,xid);
+ parent_dir_inode->i_sb, xid);
if ((rc == 0) && (newInode != NULL)) {
if (pTcon->nocase)
direntry->d_op = &cifs_dentry_ops;
d_add(direntry, newInode);
- /* since paths are not looked up by component - the parent
+ /* since paths are not looked up by component - the parent
directories are presumed to be good here */
renew_parental_timestamps(direntry);
else
direntry->d_op = &cifs_dentry_ops;
d_add(direntry, NULL);
- /* if it was once a directory (but how can we tell?) we could do
- shrink_dcache_parent(direntry); */
+ /* if it was once a directory (but how can we tell?) we could do
+ shrink_dcache_parent(direntry); */
} else {
cERROR(1,("Error 0x%x on cifs_get_inode_info in lookup of %s",
- rc,full_path));
- /* BB special case check for Access Denied - watch security
- exposure of returning dir info implicitly via different rc
+ rc, full_path));
+ /* BB special case check for Access Denied - watch security
+ exposure of returning dir info implicitly via different rc
if file exists or not but no access BB */
}
} else {
cFYI(1, ("neg dentry 0x%p name = %s",
direntry, direntry->d_name.name));
- if(time_after(jiffies, direntry->d_time + HZ) ||
+ if (time_after(jiffies, direntry->d_time + HZ) ||
!lookupCacheEnabled) {
d_drop(direntry);
isValid = 0;
- }
+ }
}
return isValid;
struct dentry_operations cifs_dentry_ops = {
.d_revalidate = cifs_d_revalidate,
-/* d_delete: cifs_d_delete, *//* not needed except for debugging */
- /* no need for d_hash, d_compare, d_release, d_iput ... yet. BB confirm this BB */
+/* d_delete: cifs_d_delete, */ /* not needed except for debugging */
};
static int cifs_ci_hash(struct dentry *dentry, struct qstr *q)
* fs/cifs/fcntl.c
*
* vfs operations that deal with the file control API
- *
+ *
* Copyright (C) International Business Machines Corp., 2003,2004
* Author(s): Steve French (sfrench@us.ibm.com)
*
/* No way on Linux VFS to ask to monitor xattr
changes (and no stream support either */
- if(fcntl_notify_flags & DN_ACCESS) {
+ if (fcntl_notify_flags & DN_ACCESS) {
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_ACCESS;
}
- if(fcntl_notify_flags & DN_MODIFY) {
+ if (fcntl_notify_flags & DN_MODIFY) {
/* What does this mean on directories? */
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_WRITE |
FILE_NOTIFY_CHANGE_SIZE;
}
- if(fcntl_notify_flags & DN_CREATE) {
- cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_CREATION |
+ if (fcntl_notify_flags & DN_CREATE) {
+ cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_CREATION |
FILE_NOTIFY_CHANGE_LAST_WRITE;
}
- if(fcntl_notify_flags & DN_DELETE) {
+ if (fcntl_notify_flags & DN_DELETE) {
cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_LAST_WRITE;
}
- if(fcntl_notify_flags & DN_RENAME) {
+ if (fcntl_notify_flags & DN_RENAME) {
/* BB review this - checking various server behaviors */
- cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_DIR_NAME |
+ cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_DIR_NAME |
FILE_NOTIFY_CHANGE_FILE_NAME;
}
- if(fcntl_notify_flags & DN_ATTRIB) {
- cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_SECURITY |
+ if (fcntl_notify_flags & DN_ATTRIB) {
+ cifs_ntfy_flags |= FILE_NOTIFY_CHANGE_SECURITY |
FILE_NOTIFY_CHANGE_ATTRIBUTES;
}
-/* if(fcntl_notify_flags & DN_MULTISHOT) {
+/* if (fcntl_notify_flags & DN_MULTISHOT) {
cifs_ntfy_flags |= ;
} */ /* BB fixme - not sure how to handle this with CIFS yet */
-
return cifs_ntfy_flags;
}
__u32 filter = FILE_NOTIFY_CHANGE_NAME | FILE_NOTIFY_CHANGE_ATTRIBUTES;
__u16 netfid;
-
- if(experimEnabled == 0)
+ if (experimEnabled == 0)
return 0;
xid = GetXid();
full_path = build_path_from_dentry(file->f_path.dentry);
- if(full_path == NULL) {
+ if (full_path == NULL) {
rc = -ENOMEM;
} else {
- cFYI(1,("dir notify on file %s Arg 0x%lx",full_path,arg));
- rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN,
+ cFYI(1, ("dir notify on file %s Arg 0x%lx", full_path, arg));
+ rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN,
GENERIC_READ | SYNCHRONIZE, 0 /* create options */,
- &netfid, &oplock,NULL, cifs_sb->local_nls,
+ &netfid, &oplock, NULL, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
/* BB fixme - add this handle to a notify handle list */
- if(rc) {
- cFYI(1,("Could not open directory for notify"));
+ if (rc) {
+ cFYI(1, ("Could not open directory for notify"));
} else {
filter = convert_to_cifs_notify_flags(arg);
- if(filter != 0) {
- rc = CIFSSMBNotify(xid, pTcon,
+ if (filter != 0) {
+ rc = CIFSSMBNotify(xid, pTcon,
0 /* no subdirs */, netfid,
filter, file, arg & DN_MULTISHOT,
cifs_sb->local_nls);
it would close automatically but may be a way
to do it easily when inode freed or when
notify info is cleared/changed */
- cFYI(1,("notify rc %d",rc));
+ cFYI(1, ("notify rc %d", rc));
}
}
-
+
FreeXid(xid);
return rc;
}
projects / linux-drm-fsl-dcu.git / commitdiff