1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * SE/HMC Drive FTP Services |
4 | * |
5 | * Copyright IBM Corp. 2013 |
6 | * Author(s): Ralf Hoppe (rhoppe@de.ibm.com) |
7 | */ |
8 | |
9 | #ifndef __HMCDRV_FTP_H__ |
10 | #define __HMCDRV_FTP_H__ |
11 | |
12 | #include <linux/types.h> /* size_t, loff_t */ |
13 | |
14 | /* |
15 | * HMC drive FTP Service max. length of path (w/ EOS) |
16 | */ |
17 | #define HMCDRV_FTP_FIDENT_MAX 192 |
18 | |
19 | /** |
20 | * enum hmcdrv_ftp_cmdid - HMC drive FTP commands |
21 | * @HMCDRV_FTP_NOOP: do nothing (only for probing) |
22 | * @HMCDRV_FTP_GET: read a file |
23 | * @HMCDRV_FTP_PUT: (over-) write a file |
24 | * @HMCDRV_FTP_APPEND: append to a file |
25 | * @HMCDRV_FTP_DIR: list directory long (ls -l) |
26 | * @HMCDRV_FTP_NLIST: list files, no directories (name list) |
27 | * @HMCDRV_FTP_DELETE: delete a file |
28 | * @HMCDRV_FTP_CANCEL: cancel operation (SCLP/LPAR only) |
29 | */ |
30 | enum hmcdrv_ftp_cmdid { |
31 | HMCDRV_FTP_NOOP = 0, |
32 | HMCDRV_FTP_GET = 1, |
33 | HMCDRV_FTP_PUT = 2, |
34 | HMCDRV_FTP_APPEND = 3, |
35 | HMCDRV_FTP_DIR = 4, |
36 | HMCDRV_FTP_NLIST = 5, |
37 | HMCDRV_FTP_DELETE = 6, |
38 | HMCDRV_FTP_CANCEL = 7 |
39 | }; |
40 | |
41 | /** |
42 | * struct hmcdrv_ftp_cmdspec - FTP command specification |
43 | * @id: FTP command ID |
44 | * @ofs: offset in file |
45 | * @fname: filename (ASCII), null-terminated |
46 | * @buf: kernel-space transfer data buffer, 4k aligned |
47 | * @len: (max) number of bytes to transfer from/to @buf |
48 | */ |
49 | struct hmcdrv_ftp_cmdspec { |
50 | enum hmcdrv_ftp_cmdid id; |
51 | loff_t ofs; |
52 | const char *fname; |
53 | void __kernel *buf; |
54 | size_t len; |
55 | }; |
56 | |
57 | int hmcdrv_ftp_startup(void); |
58 | void hmcdrv_ftp_shutdown(void); |
59 | int hmcdrv_ftp_probe(void); |
60 | ssize_t hmcdrv_ftp_do(const struct hmcdrv_ftp_cmdspec *ftp); |
61 | ssize_t hmcdrv_ftp_cmd(char __kernel *cmd, loff_t offset, |
62 | char __user *buf, size_t len); |
63 | |
64 | #endif /* __HMCDRV_FTP_H__ */ |
65 | |