CIFS: Move rename to ops struct
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
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3c1bf7e48e
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8ceb984379
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@ -275,6 +275,9 @@ struct smb_version_operations {
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/* open, rename and delete file */
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int (*rename_pending_delete)(const char *, struct dentry *,
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const unsigned int);
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/* send rename request */
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int (*rename)(const unsigned int, struct cifs_tcon *, const char *,
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const char *, struct cifs_sb_info *);
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/* open a file for non-posix mounts */
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int (*open)(const unsigned int, struct cifs_tcon *, const char *, int,
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int, int, struct cifs_fid *, __u32 *, FILE_ALL_INFO *,
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@ -310,9 +310,8 @@ extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
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extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
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const char *name, struct cifs_sb_info *cifs_sb);
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extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
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const char *fromName, const char *toName,
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const struct nls_table *nls_codepage,
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int remap_special_chars);
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const char *from_name, const char *to_name,
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struct cifs_sb_info *cifs_sb);
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extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
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int netfid, const char *target_name,
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const struct nls_table *nls_codepage,
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@ -2531,8 +2531,8 @@ CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon, int smb_file_id)
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int
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CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
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const char *fromName, const char *toName,
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const struct nls_table *nls_codepage, int remap)
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const char *from_name, const char *to_name,
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struct cifs_sb_info *cifs_sb)
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{
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int rc = 0;
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RENAME_REQ *pSMB = NULL;
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@ -2540,6 +2540,7 @@ CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
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int bytes_returned;
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int name_len, name_len2;
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__u16 count;
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int remap = cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR;
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cFYI(1, "In CIFSSMBRename");
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renameRetry:
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@ -2554,9 +2555,9 @@ renameRetry:
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ATTR_DIRECTORY);
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if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
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name_len =
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cifsConvertToUTF16((__le16 *) pSMB->OldFileName, fromName,
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PATH_MAX, nls_codepage, remap);
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name_len = cifsConvertToUTF16((__le16 *) pSMB->OldFileName,
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from_name, PATH_MAX,
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cifs_sb->local_nls, remap);
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name_len++; /* trailing null */
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name_len *= 2;
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pSMB->OldFileName[name_len] = 0x04; /* pad */
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@ -2564,17 +2565,18 @@ renameRetry:
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pSMB->OldFileName[name_len + 1] = 0x00;
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name_len2 =
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cifsConvertToUTF16((__le16 *)&pSMB->OldFileName[name_len+2],
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toName, PATH_MAX, nls_codepage, remap);
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to_name, PATH_MAX, cifs_sb->local_nls,
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remap);
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name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ;
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name_len2 *= 2; /* convert to bytes */
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} else { /* BB improve the check for buffer overruns BB */
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name_len = strnlen(fromName, PATH_MAX);
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name_len = strnlen(from_name, PATH_MAX);
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name_len++; /* trailing null */
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strncpy(pSMB->OldFileName, fromName, name_len);
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name_len2 = strnlen(toName, PATH_MAX);
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strncpy(pSMB->OldFileName, from_name, name_len);
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name_len2 = strnlen(to_name, PATH_MAX);
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name_len2++; /* trailing null */
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pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */
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strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2);
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strncpy(&pSMB->OldFileName[name_len + 1], to_name, name_len2);
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name_len2++; /* trailing null */
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name_len2++; /* signature byte */
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}
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@ -1512,29 +1512,32 @@ rmdir_exit:
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}
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static int
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cifs_do_rename(unsigned int xid, struct dentry *from_dentry,
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const char *fromPath, struct dentry *to_dentry,
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const char *toPath)
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cifs_do_rename(const unsigned int xid, struct dentry *from_dentry,
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const char *from_path, struct dentry *to_dentry,
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const char *to_path)
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{
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struct cifs_sb_info *cifs_sb = CIFS_SB(from_dentry->d_sb);
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struct tcon_link *tlink;
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struct cifs_tcon *pTcon;
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struct cifs_tcon *tcon;
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struct TCP_Server_Info *server;
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__u16 srcfid;
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int oplock, rc;
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tlink = cifs_sb_tlink(cifs_sb);
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if (IS_ERR(tlink))
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return PTR_ERR(tlink);
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pTcon = tlink_tcon(tlink);
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tcon = tlink_tcon(tlink);
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server = tcon->ses->server;
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if (!server->ops->rename)
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return -ENOSYS;
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/* try path-based rename first */
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rc = CIFSSMBRename(xid, pTcon, fromPath, toPath, cifs_sb->local_nls,
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cifs_sb->mnt_cifs_flags &
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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rc = server->ops->rename(xid, tcon, from_path, to_path, cifs_sb);
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/*
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* don't bother with rename by filehandle unless file is busy and
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* source Note that cross directory moves do not work with
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* Don't bother with rename by filehandle unless file is busy and
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* source. Note that cross directory moves do not work with
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* rename by filehandle to various Windows servers.
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*/
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if (rc == 0 || rc != -ETXTBSY)
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@ -1545,29 +1548,28 @@ cifs_do_rename(unsigned int xid, struct dentry *from_dentry,
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goto do_rename_exit;
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/* open the file to be renamed -- we need DELETE perms */
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rc = CIFSSMBOpen(xid, pTcon, fromPath, FILE_OPEN, DELETE,
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rc = CIFSSMBOpen(xid, tcon, from_path, FILE_OPEN, DELETE,
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CREATE_NOT_DIR, &srcfid, &oplock, NULL,
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cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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if (rc == 0) {
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rc = CIFSSMBRenameOpenFile(xid, pTcon, srcfid,
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rc = CIFSSMBRenameOpenFile(xid, tcon, srcfid,
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(const char *) to_dentry->d_name.name,
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cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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CIFSSMBClose(xid, pTcon, srcfid);
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CIFSSMBClose(xid, tcon, srcfid);
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}
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do_rename_exit:
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cifs_put_tlink(tlink);
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return rc;
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}
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int cifs_rename(struct inode *source_dir, struct dentry *source_dentry,
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struct inode *target_dir, struct dentry *target_dentry)
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int
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cifs_rename(struct inode *source_dir, struct dentry *source_dentry,
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struct inode *target_dir, struct dentry *target_dentry)
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{
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char *fromName = NULL;
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char *toName = NULL;
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char *from_name = NULL;
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char *to_name = NULL;
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struct cifs_sb_info *cifs_sb;
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struct tcon_link *tlink;
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struct cifs_tcon *tcon;
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@ -1588,25 +1590,25 @@ int cifs_rename(struct inode *source_dir, struct dentry *source_dentry,
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* we already have the rename sem so we do not need to
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* grab it again here to protect the path integrity
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*/
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fromName = build_path_from_dentry(source_dentry);
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if (fromName == NULL) {
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from_name = build_path_from_dentry(source_dentry);
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if (from_name == NULL) {
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rc = -ENOMEM;
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goto cifs_rename_exit;
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}
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toName = build_path_from_dentry(target_dentry);
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if (toName == NULL) {
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to_name = build_path_from_dentry(target_dentry);
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if (to_name == NULL) {
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rc = -ENOMEM;
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goto cifs_rename_exit;
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}
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rc = cifs_do_rename(xid, source_dentry, fromName,
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target_dentry, toName);
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rc = cifs_do_rename(xid, source_dentry, from_name, target_dentry,
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to_name);
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if (rc == -EEXIST && tcon->unix_ext) {
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/*
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* Are src and dst hardlinks of same inode? We can
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* only tell with unix extensions enabled
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* Are src and dst hardlinks of same inode? We can only tell
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* with unix extensions enabled.
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*/
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info_buf_source =
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kmalloc(2 * sizeof(FILE_UNIX_BASIC_INFO),
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@ -1617,19 +1619,19 @@ int cifs_rename(struct inode *source_dir, struct dentry *source_dentry,
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}
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info_buf_target = info_buf_source + 1;
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tmprc = CIFSSMBUnixQPathInfo(xid, tcon, fromName,
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info_buf_source,
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cifs_sb->local_nls,
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cifs_sb->mnt_cifs_flags &
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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tmprc = CIFSSMBUnixQPathInfo(xid, tcon, from_name,
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info_buf_source,
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cifs_sb->local_nls,
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cifs_sb->mnt_cifs_flags &
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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if (tmprc != 0)
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goto unlink_target;
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tmprc = CIFSSMBUnixQPathInfo(xid, tcon, toName,
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info_buf_target,
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cifs_sb->local_nls,
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cifs_sb->mnt_cifs_flags &
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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tmprc = CIFSSMBUnixQPathInfo(xid, tcon, to_name,
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info_buf_target,
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cifs_sb->local_nls,
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cifs_sb->mnt_cifs_flags &
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CIFS_MOUNT_MAP_SPECIAL_CHR);
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if (tmprc == 0 && (info_buf_source->UniqueId ==
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info_buf_target->UniqueId)) {
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@ -1637,8 +1639,11 @@ int cifs_rename(struct inode *source_dir, struct dentry *source_dentry,
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rc = 0;
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goto cifs_rename_exit;
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}
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} /* else ... BB we could add the same check for Windows by
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checking the UniqueId via FILE_INTERNAL_INFO */
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}
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/*
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* else ... BB we could add the same check for Windows by
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* checking the UniqueId via FILE_INTERNAL_INFO
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*/
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unlink_target:
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/* Try unlinking the target dentry if it's not negative */
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tmprc = cifs_unlink(target_dir, target_dentry);
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if (tmprc)
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goto cifs_rename_exit;
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rc = cifs_do_rename(xid, source_dentry, fromName,
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target_dentry, toName);
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rc = cifs_do_rename(xid, source_dentry, from_name,
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target_dentry, to_name);
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}
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cifs_rename_exit:
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kfree(info_buf_source);
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kfree(fromName);
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kfree(toName);
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kfree(from_name);
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kfree(to_name);
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free_xid(xid);
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cifs_put_tlink(tlink);
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return rc;
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@ -800,6 +800,7 @@ struct smb_version_operations smb1_operations = {
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.rmdir = CIFSSMBRmDir,
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.unlink = CIFSSMBDelFile,
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.rename_pending_delete = cifs_rename_pending_delete,
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.rename = CIFSSMBRename,
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.open = cifs_open_file,
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.set_fid = cifs_set_fid,
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.close = cifs_close_file,
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