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/* SPDX-License-Identifier: GPL-2.0 */
/*
* SE/HMC Drive FTP Services
*
* Copyright IBM Corp. 2013
* Author(s): Ralf Hoppe (rhoppe@de.ibm.com)
*/
#ifndef __HMCDRV_FTP_H__
#define __HMCDRV_FTP_H__
#include <linux/types.h> /* size_t, loff_t */
/*
* HMC drive FTP Service max. length of path (w/ EOS)
*/
#define HMCDRV_FTP_FIDENT_MAX 192
/**
* enum hmcdrv_ftp_cmdid - HMC drive FTP commands
* @HMCDRV_FTP_NOOP: do nothing (only for probing)
* @HMCDRV_FTP_GET: read a file
* @HMCDRV_FTP_PUT: (over-) write a file
* @HMCDRV_FTP_APPEND: append to a file
* @HMCDRV_FTP_DIR: list directory long (ls -l)
* @HMCDRV_FTP_NLIST: list files, no directories (name list)
* @HMCDRV_FTP_DELETE: delete a file
* @HMCDRV_FTP_CANCEL: cancel operation (SCLP/LPAR only)
*/
enum hmcdrv_ftp_cmdid {
HMCDRV_FTP_NOOP = 0,
HMCDRV_FTP_GET = 1,
HMCDRV_FTP_PUT = 2,
HMCDRV_FTP_APPEND = 3,
HMCDRV_FTP_DIR = 4,
HMCDRV_FTP_NLIST = 5,
HMCDRV_FTP_DELETE = 6,
HMCDRV_FTP_CANCEL = 7
};
/**
* struct hmcdrv_ftp_cmdspec - FTP command specification
* @id: FTP command ID
* @ofs: offset in file
* @fname: filename (ASCII), null-terminated
* @buf: kernel-space transfer data buffer, 4k aligned
* @len: (max) number of bytes to transfer from/to @buf
*/
struct hmcdrv_ftp_cmdspec {
enum hmcdrv_ftp_cmdid id;
loff_t ofs;
const char *fname;
void __kernel *buf;
size_t len;
};
int hmcdrv_ftp_startup(void);
void hmcdrv_ftp_shutdown(void);
int hmcdrv_ftp_probe(void);
ssize_t hmcdrv_ftp_do(const struct hmcdrv_ftp_cmdspec *ftp);
ssize_t hmcdrv_ftp_cmd(char __kernel *cmd, loff_t offset,
char __user *buf, size_t len);
#endif /* __HMCDRV_FTP_H__ */
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