blob: 6359cd2848e56abe7bdd39afbdea7c6aa7eaae3e [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -04001/* SPDX-License-Identifier: GPL-2.0+ */
wdenkcbd8a352004-02-24 02:00:03 +00002/*
3 * (C) Masami Komiya <mkomiya@sonare.it> 2004
wdenkcbd8a352004-02-24 02:00:03 +00004 */
5
6#ifndef __NFS_H__
7#define __NFS_H__
8
9#define SUNRPC_PORT 111
10
11#define PROG_PORTMAP 100000
12#define PROG_NFS 100003
13#define PROG_MOUNT 100005
14
15#define MSG_CALL 0
16#define MSG_REPLY 1
17
18#define PORTMAP_GETPORT 3
19
20#define MOUNT_ADDENTRY 1
21#define MOUNT_UMOUNTALL 4
22
23#define NFS_LOOKUP 4
24#define NFS_READLINK 5
25#define NFS_READ 6
26
Guillaume GARDETb0baca92016-07-29 11:31:00 +020027#define NFS3PROC_LOOKUP 3
28
wdenkcbd8a352004-02-24 02:00:03 +000029#define NFS_FHSIZE 32
Guillaume GARDETb0baca92016-07-29 11:31:00 +020030#define NFS3_FHSIZE 64
wdenkcbd8a352004-02-24 02:00:03 +000031
32#define NFSERR_PERM 1
33#define NFSERR_NOENT 2
34#define NFSERR_ACCES 13
35#define NFSERR_ISDIR 21
36#define NFSERR_INVAL 22
37
Tom Rini0b1e5802017-08-20 22:40:01 -040038/*
39 * Block size used for NFS read accesses. A RPC reply packet (including all
wdenkcbd8a352004-02-24 02:00:03 +000040 * headers) must fit within a single Ethernet frame to avoid fragmentation.
Tom Rini0b1e5802017-08-20 22:40:01 -040041 * However, if CONFIG_IP_DEFRAG is set, a bigger value could be used. In any
42 * case, most NFS servers are optimized for a power of 2.
Alessandro Rubinibd931ca2009-08-07 13:59:16 +020043 */
Tom Rini0b1e5802017-08-20 22:40:01 -040044#define NFS_READ_SIZE 1024 /* biggest power of two that fits Ether frame */
wdenkcbd8a352004-02-24 02:00:03 +000045
Guillaume GARDETb0baca92016-07-29 11:31:00 +020046/* Values for Accept State flag on RPC answers (See: rfc1831) */
47enum rpc_accept_stat {
48 NFS_RPC_SUCCESS = 0, /* RPC executed successfully */
49 NFS_RPC_PROG_UNAVAIL = 1, /* remote hasn't exported program */
50 NFS_RPC_PROG_MISMATCH = 2, /* remote can't support version # */
51 NFS_RPC_PROC_UNAVAIL = 3, /* program can't support procedure */
52 NFS_RPC_GARBAGE_ARGS = 4, /* procedure can't decode params */
53 NFS_RPC_SYSTEM_ERR = 5 /* errors like memory allocation failure */
54};
55
wdenkcbd8a352004-02-24 02:00:03 +000056struct rpc_t {
57 union {
58 uint8_t data[2048];
59 struct {
60 uint32_t id;
61 uint32_t type;
62 uint32_t rpcvers;
63 uint32_t prog;
64 uint32_t vers;
65 uint32_t proc;
66 uint32_t data[1];
67 } call;
68 struct {
69 uint32_t id;
70 uint32_t type;
71 uint32_t rstatus;
72 uint32_t verifier;
73 uint32_t v2;
74 uint32_t astatus;
Joe Hershberger11e8ec92016-09-09 13:01:24 -050075 uint32_t data[NFS_READ_SIZE];
wdenkcbd8a352004-02-24 02:00:03 +000076 } reply;
77 } u;
Denis Pynkin704f3ac2017-07-21 19:28:42 +030078} __attribute__((packed));
Joe Hershberger68c76a32015-04-08 01:41:10 -050079void nfs_start(void); /* Begin NFS */
wdenkcbd8a352004-02-24 02:00:03 +000080
81
82/**********************************************************************/
83
84#endif /* __NFS_H__ */