TrustedFirmware Git Browser
Code Review Sign In
review.trustedfirmware.org / hafnium / third_party / linux / refs/heads/master / . / fs / nfsd / xdr.h
blob: b8cc6a4b2e0ec6f272cb9f17d8c66f951d3bad53 [file] [log] [blame]
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0 */
2/* XDR types for nfsd. This is mainly a typing exercise. */
3
4#ifndef LINUX_NFSD_H
5#define LINUX_NFSD_H
6
7#include <linux/vfs.h>
8#include "nfsd.h"
9#include "nfsfh.h"
10
11struct nfsd_fhandle {
12 struct svc_fh fh;
13};
14
15struct nfsd_sattrargs {
16 struct svc_fh fh;
17 struct iattr attrs;
18};
19
20struct nfsd_diropargs {
21 struct svc_fh fh;
22 char * name;
23 unsigned int len;
24};
25
26struct nfsd_readargs {
27 struct svc_fh fh;
28 __u32 offset;
29 __u32 count;
30 int vlen;
31};
32
33struct nfsd_writeargs {
34 svc_fh fh;
35 __u32 offset;
Olivier Deprez92d4c212022-12-06 15:05:30 +0100[diff] [blame]36 __u32 len;
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]37 struct kvec first;
38};
39
40struct nfsd_createargs {
41 struct svc_fh fh;
42 char * name;
43 unsigned int len;
44 struct iattr attrs;
45};
46
47struct nfsd_renameargs {
48 struct svc_fh ffh;
49 char * fname;
50 unsigned int flen;
51 struct svc_fh tfh;
52 char * tname;
53 unsigned int tlen;
54};
55
56struct nfsd_readlinkargs {
57 struct svc_fh fh;
58 char * buffer;
59};
60
61struct nfsd_linkargs {
62 struct svc_fh ffh;
63 struct svc_fh tfh;
64 char * tname;
65 unsigned int tlen;
66};
67
68struct nfsd_symlinkargs {
69 struct svc_fh ffh;
70 char * fname;
71 unsigned int flen;
72 char * tname;
73 unsigned int tlen;
74 struct iattr attrs;
75 struct kvec first;
76};
77
78struct nfsd_readdirargs {
79 struct svc_fh fh;
80 __u32 cookie;
81 __u32 count;
82 __be32 * buffer;
83};
84
Olivier Deprez157378f2022-04-04 15:47:50 +0200[diff] [blame]85struct nfsd_stat {
86 __be32 status;
87};
88
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]89struct nfsd_attrstat {
Olivier Deprez157378f2022-04-04 15:47:50 +0200[diff] [blame]90 __be32 status;
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]91 struct svc_fh fh;
92 struct kstat stat;
93};
94
95struct nfsd_diropres {
Olivier Deprez157378f2022-04-04 15:47:50 +0200[diff] [blame]96 __be32 status;
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]97 struct svc_fh fh;
98 struct kstat stat;
99};
100
101struct nfsd_readlinkres {
Olivier Deprez157378f2022-04-04 15:47:50 +0200[diff] [blame]102 __be32 status;
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]103 int len;
104};
105
106struct nfsd_readres {
Olivier Deprez157378f2022-04-04 15:47:50 +0200[diff] [blame]107 __be32 status;
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]108 struct svc_fh fh;
109 unsigned long count;
110 struct kstat stat;
111};
112
113struct nfsd_readdirres {
Olivier Deprez157378f2022-04-04 15:47:50 +0200[diff] [blame]114 __be32 status;
115
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]116 int count;
117
118 struct readdir_cd common;
119 __be32 * buffer;
120 int buflen;
121 __be32 * offset;
122};
123
124struct nfsd_statfsres {
Olivier Deprez157378f2022-04-04 15:47:50 +0200[diff] [blame]125 __be32 status;
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]126 struct kstatfs stats;
127};
128
129/*
130 * Storage requirements for XDR arguments and results.
131 */
132union nfsd_xdrstore {
133 struct nfsd_sattrargs sattr;
134 struct nfsd_diropargs dirop;
135 struct nfsd_readargs read;
136 struct nfsd_writeargs write;
137 struct nfsd_createargs create;
138 struct nfsd_renameargs rename;
139 struct nfsd_linkargs link;
140 struct nfsd_symlinkargs symlink;
141 struct nfsd_readdirargs readdir;
142};
143
144#define NFS2_SVC_XDRSIZE sizeof(union nfsd_xdrstore)
145
146
147int nfssvc_decode_void(struct svc_rqst *, __be32 *);
148int nfssvc_decode_fhandle(struct svc_rqst *, __be32 *);
149int nfssvc_decode_sattrargs(struct svc_rqst *, __be32 *);
150int nfssvc_decode_diropargs(struct svc_rqst *, __be32 *);
151int nfssvc_decode_readargs(struct svc_rqst *, __be32 *);
152int nfssvc_decode_writeargs(struct svc_rqst *, __be32 *);
153int nfssvc_decode_createargs(struct svc_rqst *, __be32 *);
154int nfssvc_decode_renameargs(struct svc_rqst *, __be32 *);
155int nfssvc_decode_readlinkargs(struct svc_rqst *, __be32 *);
156int nfssvc_decode_linkargs(struct svc_rqst *, __be32 *);
157int nfssvc_decode_symlinkargs(struct svc_rqst *, __be32 *);
158int nfssvc_decode_readdirargs(struct svc_rqst *, __be32 *);
159int nfssvc_encode_void(struct svc_rqst *, __be32 *);
Olivier Deprez157378f2022-04-04 15:47:50 +0200[diff] [blame]160int nfssvc_encode_stat(struct svc_rqst *, __be32 *);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]161int nfssvc_encode_attrstat(struct svc_rqst *, __be32 *);
162int nfssvc_encode_diropres(struct svc_rqst *, __be32 *);
163int nfssvc_encode_readlinkres(struct svc_rqst *, __be32 *);
164int nfssvc_encode_readres(struct svc_rqst *, __be32 *);
165int nfssvc_encode_statfsres(struct svc_rqst *, __be32 *);
166int nfssvc_encode_readdirres(struct svc_rqst *, __be32 *);
167
168int nfssvc_encode_entry(void *, const char *name,
169 int namlen, loff_t offset, u64 ino, unsigned int);
170
Olivier Deprez157378f2022-04-04 15:47:50 +0200[diff] [blame]171void nfssvc_release_attrstat(struct svc_rqst *rqstp);
172void nfssvc_release_diropres(struct svc_rqst *rqstp);
173void nfssvc_release_readres(struct svc_rqst *rqstp);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]174
175/* Helper functions for NFSv2 ACL code */
176__be32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp, struct kstat *stat);
177__be32 *nfs2svc_decode_fh(__be32 *p, struct svc_fh *fhp);
178
179#endif /* LINUX_NFSD_H */