@@ -74,6 +74,10 @@ smb2_open_op_close(const unsigned int xid, struct cifs_tcon *tcon,
* SMB2_open() call.
*/
break;
+ case SMB2_OP_RENAME:
+ tmprc = SMB2_rename(xid, tcon, persistent_fid, volatile_fid,
+ (__le16 *)data);
+ break;
default:
cERROR(1, "Invalid command");
break;
@@ -170,3 +174,24 @@ smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
0, CREATE_DELETE_ON_CLOSE, NULL,
SMB2_OP_DELETE);
}
+
+int
+smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon,
+ const char *from_name, const char *to_name,
+ struct cifs_sb_info *cifs_sb)
+{
+ __le16 *smb2_to_name = NULL;
+ int rc;
+
+ smb2_to_name = cifs_convert_path_to_utf16(to_name, cifs_sb);
+ if (smb2_to_name == NULL) {
+ rc = -ENOMEM;
+ goto smb2_rename_path;
+ }
+
+ rc = smb2_open_op_close(xid, tcon, cifs_sb, from_name, DELETE,
+ FILE_OPEN, 0, 0, smb2_to_name, SMB2_OP_RENAME);
+smb2_rename_path:
+ kfree(smb2_to_name);
+ return rc;
+}
@@ -442,6 +442,7 @@ struct smb_version_operations smb21_operations = {
.mkdir_setinfo = smb2_mkdir_setinfo,
.rmdir = smb2_rmdir,
.unlink = smb2_unlink,
+ .rename = smb2_rename_path,
.open = smb2_open_file,
.set_fid = smb2_set_fid,
.close = smb2_close_file,
@@ -1597,3 +1597,110 @@ SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
}
return rc;
}
+
+static int
+send_set_info(const unsigned int xid, struct cifs_tcon *tcon,
+ u64 persistent_fid, u64 volatile_fid, int info_class,
+ unsigned int num, void **data, unsigned int *size)
+{
+ struct smb2_set_info_req *req;
+ struct smb2_set_info_rsp *rsp = NULL;
+ struct kvec *iov;
+ int rc = 0;
+ int resp_buftype;
+ unsigned int i;
+ struct TCP_Server_Info *server;
+ struct cifs_ses *ses = tcon->ses;
+
+ if (ses && (ses->server))
+ server = ses->server;
+ else
+ return -EIO;
+
+ if (!num)
+ return -EINVAL;
+
+ iov = kmalloc(sizeof(struct kvec) * num, GFP_KERNEL);
+ if (!iov)
+ return -ENOMEM;
+
+ rc = small_smb2_init(SMB2_SET_INFO, tcon, (void **) &req);
+ if (rc) {
+ kfree(iov);
+ return rc;
+ }
+
+ req->InfoType = SMB2_O_INFO_FILE;
+ req->FileInfoClass = info_class;
+ req->PersistentFileId = persistent_fid;
+ req->VolatileFileId = volatile_fid;
+
+ /* 4 for RFC1001 length and 1 for Buffer */
+ req->BufferOffset =
+ cpu_to_le16(sizeof(struct smb2_set_info_req) - 1 - 4);
+ req->BufferLength = cpu_to_le32(*size);
+
+ inc_rfc1001_len(req, *size - 1 /* Buffer */);
+
+ memcpy(req->Buffer, *data, *size);
+
+ iov[0].iov_base = (char *)req;
+ /* 4 for RFC1001 length */
+ iov[0].iov_len = get_rfc1002_length(req) + 4;
+
+ for (i = 1; i < num; i++) {
+ inc_rfc1001_len(req, size[i]);
+ le32_add_cpu(&req->BufferLength, size[i]);
+ iov[i].iov_base = (char *)data[i];
+ iov[i].iov_len = size[i];
+ }
+
+ rc = SendReceive2(xid, ses, iov, num, &resp_buftype, 0);
+ rsp = (struct smb2_set_info_rsp *)iov[0].iov_base;
+
+ if (rc != 0) {
+ cifs_stats_fail_inc(tcon, SMB2_SET_INFO_HE);
+ goto out;
+ }
+
+ if (rsp == NULL) {
+ rc = -EIO;
+ goto out;
+ }
+
+out:
+ free_rsp_buf(resp_buftype, rsp);
+ kfree(iov);
+ return rc;
+}
+
+int
+SMB2_rename(const unsigned int xid, struct cifs_tcon *tcon,
+ u64 persistent_fid, u64 volatile_fid, __le16 *target_file)
+{
+ struct smb2_file_rename_info info;
+ void **data;
+ unsigned int size[2];
+ int rc;
+ int len = (2 * UniStrnlen((wchar_t *)target_file, PATH_MAX));
+
+ data = kmalloc(sizeof(void *) * 2, GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ info.ReplaceIfExists = 1; /* 1 = replace existing target with new */
+ /* 0 = fail if target already exists */
+ info.RootDirectory = 0; /* MBZ for network ops (why does spec say?) */
+ info.FileNameLength = cpu_to_le32(len);
+
+ data[0] = &info;
+ size[0] = sizeof(struct smb2_file_rename_info);
+
+ data[1] = target_file;
+ size[1] = len + 2 /* null */;
+
+ rc = send_set_info(xid, tcon, persistent_fid, volatile_fid,
+ FILE_RENAME_INFORMATION, 2, data, size);
+ kfree(data);
+ return rc;
+}
@@ -566,6 +566,25 @@ struct smb2_query_info_rsp {
__u8 Buffer[1];
} __packed;
+struct smb2_set_info_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 33 */
+ __u8 InfoType;
+ __u8 FileInfoClass;
+ __le32 BufferLength;
+ __le16 BufferOffset;
+ __u16 Reserved;
+ __le32 AdditionalInformation;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+ __u8 Buffer[1];
+} __packed;
+
+struct smb2_set_info_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 2 */
+} __packed;
+
/*
* PDU infolevel structure definitions
* BB consider moving to a different header
@@ -623,6 +642,15 @@ struct smb2_file_internal_info {
__le64 IndexNumber;
} __packed; /* level 6 Query */
+struct smb2_file_rename_info { /* encoding of request for level 10 */
+ __u8 ReplaceIfExists; /* 1 = replace existing target with new */
+ /* 0 = fail if target already exists */
+ __u8 Reserved[7];
+ __u64 RootDirectory; /* MBZ for network operations (why says spec?) */
+ __le32 FileNameLength;
+ char FileName[0]; /* New name to be assigned */
+} __packed; /* level 10 Set */
+
/*
* This level 18, although with struct with same name is different from cifs
* level 0x107. Level 0x107 has an extra u64 between AccessFlags and
@@ -65,6 +65,9 @@ extern int smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon,
const char *name, struct cifs_sb_info *cifs_sb);
extern int smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon,
const char *name, struct cifs_sb_info *cifs_sb);
+extern int smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon,
+ const char *from_name, const char *to_name,
+ struct cifs_sb_info *cifs_sb);
extern int smb2_open_file(const unsigned int xid, struct cifs_tcon *tcon,
const char *full_path, int disposition,
@@ -106,5 +109,8 @@ extern int smb2_async_writev(struct cifs_writedata *wdata);
extern int SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
unsigned int *nbytes, struct kvec *iov, int n_vec);
extern int SMB2_echo(struct TCP_Server_Info *server);
+extern int SMB2_rename(const unsigned int xid, struct cifs_tcon *tcon,
+ u64 persistent_fid, u64 volatile_fid,
+ __le16 *target_file);
#endif /* _SMB2PROTO_H */
Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com> --- fs/cifs/smb2inode.c | 25 ++++++++++++ fs/cifs/smb2ops.c | 1 + fs/cifs/smb2pdu.c | 107 +++++++++++++++++++++++++++++++++++++++++++++++++++ fs/cifs/smb2pdu.h | 28 +++++++++++++ fs/cifs/smb2proto.h | 6 +++ 5 files changed, 167 insertions(+), 0 deletions(-)