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-rw-r--r--fs/cifs/cifsglob.h7
-rw-r--r--fs/cifs/cifsproto.h5
-rw-r--r--fs/cifs/cifssmb.c3
-rw-r--r--fs/cifs/file.c19
-rw-r--r--fs/cifs/inode.c6
-rw-r--r--fs/cifs/smb1ops.c2
-rw-r--r--fs/cifs/smb2inode.c4
-rw-r--r--fs/cifs/smb2ops.c3
-rw-r--r--fs/cifs/smb2pdu.c1
9 files changed, 33 insertions, 17 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 53611d7e9d28..f9cbdfc1591b 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -1229,6 +1229,7 @@ struct cifs_fid {
__u64 volatile_fid; /* volatile file id for smb2 */
__u8 lease_key[SMB2_LEASE_KEY_SIZE]; /* lease key for smb2 */
__u8 create_guid[16];
+ __u32 access;
struct cifs_pending_open *pending_open;
unsigned int epoch;
#ifdef CONFIG_CIFS_DEBUG2
@@ -1700,6 +1701,12 @@ static inline bool is_retryable_error(int error)
return false;
}
+
+/* cifs_get_writable_file() flags */
+#define FIND_WR_ANY 0
+#define FIND_WR_FSUID_ONLY 1
+#define FIND_WR_WITH_DELETE 2
+
#define MID_FREE 0
#define MID_REQUEST_ALLOCATED 1
#define MID_REQUEST_SUBMITTED 2
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index fe597d3d5208..f18da99a6b55 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -133,11 +133,12 @@ extern bool backup_cred(struct cifs_sb_info *);
extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
unsigned int bytes_written);
-extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
+extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, int);
extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode,
- bool fsuid_only,
+ int flags,
struct cifsFileInfo **ret_file);
extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
+ int flags,
struct cifsFileInfo **ret_file);
extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name,
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 4f554f019a98..c8494fa5e19d 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1489,6 +1489,7 @@ openRetry:
*oplock = rsp->OplockLevel;
/* cifs fid stays in le */
oparms->fid->netfid = rsp->Fid;
+ oparms->fid->access = desired_access;
/* Let caller know file was created so we can set the mode. */
/* Do we care about the CreateAction in any other cases? */
@@ -2112,7 +2113,7 @@ cifs_writev_requeue(struct cifs_writedata *wdata)
wdata2->tailsz = tailsz;
wdata2->bytes = cur_len;
- rc = cifs_get_writable_file(CIFS_I(inode), false,
+ rc = cifs_get_writable_file(CIFS_I(inode), FIND_WR_ANY,
&wdata2->cfile);
if (!wdata2->cfile) {
cifs_dbg(VFS, "No writable handle to retry writepages rc=%d\n",
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 969543034b4d..0dbe47e89720 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1916,7 +1916,7 @@ struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *cifs_inode,
/* Return -EBADF if no handle is found and general rc otherwise */
int
-cifs_get_writable_file(struct cifsInodeInfo *cifs_inode, bool fsuid_only,
+cifs_get_writable_file(struct cifsInodeInfo *cifs_inode, int flags,
struct cifsFileInfo **ret_file)
{
struct cifsFileInfo *open_file, *inv_file = NULL;
@@ -1924,7 +1924,8 @@ cifs_get_writable_file(struct cifsInodeInfo *cifs_inode, bool fsuid_only,
bool any_available = false;
int rc = -EBADF;
unsigned int refind = 0;
-
+ bool fsuid_only = flags & FIND_WR_FSUID_ONLY;
+ bool with_delete = flags & FIND_WR_WITH_DELETE;
*ret_file = NULL;
/*
@@ -1956,6 +1957,8 @@ refind_writable:
continue;
if (fsuid_only && !uid_eq(open_file->uid, current_fsuid()))
continue;
+ if (with_delete && !(open_file->fid.access & DELETE))
+ continue;
if (OPEN_FMODE(open_file->f_flags) & FMODE_WRITE) {
if (!open_file->invalidHandle) {
/* found a good writable file */
@@ -2003,12 +2006,12 @@ refind_writable:
}
struct cifsFileInfo *
-find_writable_file(struct cifsInodeInfo *cifs_inode, bool fsuid_only)
+find_writable_file(struct cifsInodeInfo *cifs_inode, int flags)
{
struct cifsFileInfo *cfile;
int rc;
- rc = cifs_get_writable_file(cifs_inode, fsuid_only, &cfile);
+ rc = cifs_get_writable_file(cifs_inode, flags, &cfile);
if (rc)
cifs_dbg(FYI, "couldn't find writable handle rc=%d", rc);
@@ -2017,6 +2020,7 @@ find_writable_file(struct cifsInodeInfo *cifs_inode, bool fsuid_only)
int
cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
+ int flags,
struct cifsFileInfo **ret_file)
{
struct list_head *tmp;
@@ -2043,7 +2047,7 @@ cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
kfree(full_path);
cinode = CIFS_I(d_inode(cfile->dentry));
spin_unlock(&tcon->open_file_lock);
- return cifs_get_writable_file(cinode, 0, ret_file);
+ return cifs_get_writable_file(cinode, flags, ret_file);
}
spin_unlock(&tcon->open_file_lock);
@@ -2120,7 +2124,8 @@ static int cifs_partialpagewrite(struct page *page, unsigned from, unsigned to)
if (mapping->host->i_size - offset < (loff_t)to)
to = (unsigned)(mapping->host->i_size - offset);
- rc = cifs_get_writable_file(CIFS_I(mapping->host), false, &open_file);
+ rc = cifs_get_writable_file(CIFS_I(mapping->host), FIND_WR_ANY,
+ &open_file);
if (!rc) {
bytes_written = cifs_write(open_file, open_file->pid,
write_data, to - from, &offset);
@@ -2313,7 +2318,7 @@ retry:
if (cfile)
cifsFileInfo_put(cfile);
- rc = cifs_get_writable_file(CIFS_I(inode), false, &cfile);
+ rc = cifs_get_writable_file(CIFS_I(inode), FIND_WR_ANY, &cfile);
/* in case of an error store it to return later */
if (rc)
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index f22c1a7d64a3..7c5e983fe385 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -2220,7 +2220,7 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs,
* writebehind data than the SMB timeout for the SetPathInfo
* request would allow
*/
- open_file = find_writable_file(cifsInode, true);
+ open_file = find_writable_file(cifsInode, FIND_WR_FSUID_ONLY);
if (open_file) {
tcon = tlink_tcon(open_file->tlink);
server = tcon->ses->server;
@@ -2370,7 +2370,7 @@ cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs)
args->ctime = NO_CHANGE_64;
args->device = 0;
- open_file = find_writable_file(cifsInode, true);
+ open_file = find_writable_file(cifsInode, FIND_WR_FSUID_ONLY);
if (open_file) {
u16 nfid = open_file->fid.netfid;
u32 npid = open_file->pid;
@@ -2473,7 +2473,7 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs)
rc = 0;
if (attrs->ia_valid & ATTR_MTIME) {
- rc = cifs_get_writable_file(cifsInode, false, &wfile);
+ rc = cifs_get_writable_file(cifsInode, FIND_WR_ANY, &wfile);
if (!rc) {
tcon = tlink_tcon(wfile->tlink);
rc = tcon->ses->server->ops->flush(xid, tcon, &wfile->fid);
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 514810694c0f..195766221a7a 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -767,7 +767,7 @@ smb_set_file_info(struct inode *inode, const char *full_path,
struct cifs_tcon *tcon;
/* if the file is already open for write, just use that fileid */
- open_file = find_writable_file(cinode, true);
+ open_file = find_writable_file(cinode, FIND_WR_FSUID_ONLY);
if (open_file) {
fid.netfid = open_file->fid.netfid;
netpid = open_file->pid;
diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c
index 4121ac1163ca..f2a6f7f28340 100644
--- a/fs/cifs/smb2inode.c
+++ b/fs/cifs/smb2inode.c
@@ -525,7 +525,7 @@ smb2_mkdir_setinfo(struct inode *inode, const char *name,
cifs_i = CIFS_I(inode);
dosattrs = cifs_i->cifsAttrs | ATTR_READONLY;
data.Attributes = cpu_to_le32(dosattrs);
- cifs_get_writable_path(tcon, name, &cfile);
+ cifs_get_writable_path(tcon, name, FIND_WR_ANY, &cfile);
tmprc = smb2_compound_op(xid, tcon, cifs_sb, name,
FILE_WRITE_ATTRIBUTES, FILE_CREATE,
CREATE_NOT_FILE, ACL_NO_MODE,
@@ -581,7 +581,7 @@ smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon,
{
struct cifsFileInfo *cfile;
- cifs_get_writable_path(tcon, from_name, &cfile);
+ cifs_get_writable_path(tcon, from_name, FIND_WR_WITH_DELETE, &cfile);
return smb2_set_path_attr(xid, tcon, from_name, to_name,
cifs_sb, DELETE, SMB2_OP_RENAME, cfile);
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index b75d208d4b2b..99420608d2ec 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -1338,6 +1338,7 @@ smb2_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock)
cfile->fid.persistent_fid = fid->persistent_fid;
cfile->fid.volatile_fid = fid->volatile_fid;
+ cfile->fid.access = fid->access;
#ifdef CONFIG_CIFS_DEBUG2
cfile->fid.mid = fid->mid;
#endif /* CIFS_DEBUG2 */
@@ -3162,7 +3163,7 @@ static loff_t smb3_llseek(struct file *file, struct cifs_tcon *tcon, loff_t offs
* some servers (Windows2016) will not reflect recent writes in
* QUERY_ALLOCATED_RANGES until SMB2_flush is called.
*/
- wrcfile = find_writable_file(cifsi, false);
+ wrcfile = find_writable_file(cifsi, FIND_WR_ANY);
if (wrcfile) {
filemap_write_and_wait(inode->i_mapping);
smb2_flush_file(xid, tcon, &wrcfile->fid);
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index c6fc6582ee7b..c8f304cae3f3 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2650,6 +2650,7 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,
atomic_inc(&tcon->num_remote_opens);
oparms->fid->persistent_fid = rsp->PersistentFileId;
oparms->fid->volatile_fid = rsp->VolatileFileId;
+ oparms->fid->access = oparms->desired_access;
#ifdef CONFIG_CIFS_DEBUG2
oparms->fid->mid = le64_to_cpu(rsp->sync_hdr.MessageId);
#endif /* CIFS_DEBUG2 */
generated by cgit v1.2.3 (git 2.39.0) at 2024-10-27 19:31:18 +0300