diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c index 606f26d862dc..cc3ada12848d 100644 --- a/fs/cifs/cifs_dfs_ref.c +++ b/fs/cifs/cifs_dfs_ref.c @@ -324,6 +324,8 @@ static struct vfsmount *cifs_dfs_do_automount(struct dentry *mntpt) if (full_path == NULL) goto cdda_exit; + convert_delimiter(full_path, '\\'); + cifs_dbg(FYI, "%s: full_path: %s\n", __func__, full_path); if (!cifs_sb_master_tlink(cifs_sb)) { diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 46ebaf3f0824..fa77fe5258b0 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -530,6 +530,8 @@ cifs_show_options(struct seq_file *s, struct dentry *root) if (tcon->seal) seq_puts(s, ",seal"); + else if (tcon->ses->server->ignore_signature) + seq_puts(s, ",signloosely"); if (tcon->nocase) seq_puts(s, ",nocase"); if (tcon->local_lease) diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index de82cfa44b1a..0d956360e984 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -1281,6 +1281,7 @@ 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 @@ -1741,6 +1742,12 @@ 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 89eaaf46d1ca..e5cb681ec138 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -134,11 +134,12 @@ 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 3c89569e7210..6f6fb3606a5d 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -1492,6 +1492,7 @@ CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms, int *oplock, *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? */ @@ -2115,7 +2116,7 @@ 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 bc9516ab4b34..3b942ecdd4be 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -1958,7 +1958,7 @@ 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; @@ -1966,7 +1966,8 @@ 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; /* @@ -1998,6 +1999,8 @@ cifs_get_writable_file(struct cifsInodeInfo *cifs_inode, bool fsuid_only, 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 */ @@ -2045,12 +2048,12 @@ cifs_get_writable_file(struct cifsInodeInfo *cifs_inode, bool fsuid_only, } 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); @@ -2059,6 +2062,7 @@ 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; @@ -2085,7 +2089,7 @@ 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); @@ -2162,7 +2166,8 @@ 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); @@ -2355,7 +2360,7 @@ static int cifs_writepages(struct address_space *mapping, 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 b5e6635c578e..1e8a4b1579db 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -653,8 +653,8 @@ cifs_all_info_to_fattr(struct cifs_fattr *fattr, FILE_ALL_INFO *info, */ if ((fattr->cf_nlink < 1) && !tcon->unix_ext && !info->DeletePending) { - cifs_dbg(1, "bogus file nlink value %u\n", - fattr->cf_nlink); + cifs_dbg(VFS, "bogus file nlink value %u\n", + fattr->cf_nlink); fattr->cf_flags |= CIFS_FATTR_UNKNOWN_NLINK; } } @@ -2073,6 +2073,7 @@ int cifs_revalidate_dentry_attr(struct dentry *dentry) struct inode *inode = d_inode(dentry); struct super_block *sb = dentry->d_sb; char *full_path = NULL; + int count = 0; if (inode == NULL) return -ENOENT; @@ -2094,15 +2095,18 @@ int cifs_revalidate_dentry_attr(struct dentry *dentry) full_path, inode, inode->i_count.counter, dentry, cifs_get_time(dentry), jiffies); +again: if (cifs_sb_master_tcon(CIFS_SB(sb))->unix_ext) rc = cifs_get_inode_info_unix(&inode, full_path, sb, xid); else rc = cifs_get_inode_info(&inode, full_path, NULL, sb, xid, NULL); - + if (rc == -EAGAIN && count++ < 10) + goto again; out: kfree(full_path); free_xid(xid); + return rc; } @@ -2278,7 +2282,7 @@ 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; @@ -2428,7 +2432,7 @@ 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; @@ -2531,7 +2535,7 @@ 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 eb994e313c6a..b130efaf8feb 100644 --- a/fs/cifs/smb1ops.c +++ b/fs/cifs/smb1ops.c @@ -766,7 +766,7 @@ 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 1cf207564ff9..a8c301ae00ed 100644 --- a/fs/cifs/smb2inode.c +++ b/fs/cifs/smb2inode.c @@ -521,7 +521,7 @@ 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, @@ -577,7 +577,7 @@ 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 e47190cae163..c31e84ee3c39 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -1364,6 +1364,7 @@ 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 */ @@ -3327,7 +3328,7 @@ 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 1234f9ccab03..28c0be5e69b7 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -2771,6 +2771,7 @@ 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 */