[linux.git] / fs / nfsd / xdr.h

/* SPDX-License-Identifier: GPL-2.0 */
/* XDR types for nfsd. This is mainly a typing exercise. */

#ifndef LINUX_NFSD_H
#define LINUX_NFSD_H

#include <linux/vfs.h>
#include "nfsd.h"
#include "nfsfh.h"

struct nfsd_fhandle {
	struct svc_fh		fh;
};

struct nfsd_sattrargs {
	struct svc_fh		fh;
	struct iattr		attrs;
};

struct nfsd_diropargs {
	struct svc_fh		fh;
	char *			name;
	unsigned int		len;
};

struct nfsd_readargs {
	struct svc_fh		fh;
	__u32			offset;
	__u32			count;
	int			vlen;
};

struct nfsd_writeargs {
	svc_fh			fh;
	__u32			offset;
	int			len;
	struct kvec		first;
};

struct nfsd_createargs {
	struct svc_fh		fh;
	char *			name;
	unsigned int		len;
	struct iattr		attrs;
};

struct nfsd_renameargs {
	struct svc_fh		ffh;
	char *			fname;
	unsigned int		flen;
	struct svc_fh		tfh;
	char *			tname;
	unsigned int		tlen;
};

struct nfsd_readlinkargs {
	struct svc_fh		fh;
	char *			buffer;
};
	
struct nfsd_linkargs {
	struct svc_fh		ffh;
	struct svc_fh		tfh;
	char *			tname;
	unsigned int		tlen;
};

struct nfsd_symlinkargs {
	struct svc_fh		ffh;
	char *			fname;
	unsigned int		flen;
	char *			tname;
	unsigned int		tlen;
	struct iattr		attrs;
	struct kvec		first;
};

struct nfsd_readdirargs {
	struct svc_fh		fh;
	__u32			cookie;
	__u32			count;
	__be32 *		buffer;
};

struct nfsd_attrstat {
	struct svc_fh		fh;
	struct kstat		stat;
};

struct nfsd_diropres  {
	struct svc_fh		fh;
	struct kstat		stat;
};

struct nfsd_readlinkres {
	int			len;
};

struct nfsd_readres {
	struct svc_fh		fh;
	unsigned long		count;
	struct kstat		stat;
};

struct nfsd_readdirres {
	int			count;

	struct readdir_cd	common;
	__be32 *		buffer;
	int			buflen;
	__be32 *		offset;
};

struct nfsd_statfsres {
	struct kstatfs		stats;
};

/*
 * Storage requirements for XDR arguments and results.
 */
union nfsd_xdrstore {
	struct nfsd_sattrargs	sattr;
	struct nfsd_diropargs	dirop;
	struct nfsd_readargs	read;
	struct nfsd_writeargs	write;
	struct nfsd_createargs	create;
	struct nfsd_renameargs	rename;
	struct nfsd_linkargs	link;
	struct nfsd_symlinkargs	symlink;
	struct nfsd_readdirargs	readdir;
};

#define NFS2_SVC_XDRSIZE	sizeof(union nfsd_xdrstore)


int nfssvc_decode_void(struct svc_rqst *, __be32 *);
int nfssvc_decode_fhandle(struct svc_rqst *, __be32 *);
int nfssvc_decode_sattrargs(struct svc_rqst *, __be32 *);
int nfssvc_decode_diropargs(struct svc_rqst *, __be32 *);
int nfssvc_decode_readargs(struct svc_rqst *, __be32 *);
int nfssvc_decode_writeargs(struct svc_rqst *, __be32 *);
int nfssvc_decode_createargs(struct svc_rqst *, __be32 *);
int nfssvc_decode_renameargs(struct svc_rqst *, __be32 *);
int nfssvc_decode_readlinkargs(struct svc_rqst *, __be32 *);
int nfssvc_decode_linkargs(struct svc_rqst *, __be32 *);
int nfssvc_decode_symlinkargs(struct svc_rqst *, __be32 *);
int nfssvc_decode_readdirargs(struct svc_rqst *, __be32 *);
int nfssvc_encode_void(struct svc_rqst *, __be32 *);
int nfssvc_encode_attrstat(struct svc_rqst *, __be32 *);
int nfssvc_encode_diropres(struct svc_rqst *, __be32 *);
int nfssvc_encode_readlinkres(struct svc_rqst *, __be32 *);
int nfssvc_encode_readres(struct svc_rqst *, __be32 *);
int nfssvc_encode_statfsres(struct svc_rqst *, __be32 *);
int nfssvc_encode_readdirres(struct svc_rqst *, __be32 *);

int nfssvc_encode_entry(void *, const char *name,
			int namlen, loff_t offset, u64 ino, unsigned int);

void nfssvc_release_fhandle(struct svc_rqst *);

/* Helper functions for NFSv2 ACL code */
__be32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp, struct kstat *stat);
__be32 *nfs2svc_decode_fh(__be32 *p, struct svc_fh *fhp);

#endif /* LINUX_NFSD_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
7663dacd	2	/* XDR types for nfsd. This is mainly a typing exercise. */
1da177e4 LT	3
	4	#ifndef LINUX_NFSD_H
	5	#define LINUX_NFSD_H
	6
1da177e4	7	#include <linux/vfs.h>
9a74af21	8	#include "nfsd.h"
1557aca7	9	#include "nfsfh.h"
1da177e4 LT	10
	11	struct nfsd_fhandle {
	12	struct svc_fh fh;
	13	};
	14
	15	struct nfsd_sattrargs {
	16	struct svc_fh fh;
	17	struct iattr attrs;
	18	};
	19
	20	struct nfsd_diropargs {
	21	struct svc_fh fh;
	22	char * name;
29d5e555	23	unsigned int len;
1da177e4 LT	24	};
	25
	26	struct nfsd_readargs {
	27	struct svc_fh fh;
	28	__u32 offset;
	29	__u32 count;
1da177e4 LT	30	int vlen;
	31	};
	32
	33	struct nfsd_writeargs {
	34	svc_fh fh;
	35	__u32 offset;
	36	int len;
8154ef27	37	struct kvec first;
1da177e4 LT	38	};
	39
	40	struct nfsd_createargs {
	41	struct svc_fh fh;
	42	char * name;
29d5e555	43	unsigned int len;
1da177e4 LT	44	struct iattr attrs;
	45	};
	46
	47	struct nfsd_renameargs {
	48	struct svc_fh ffh;
	49	char * fname;
29d5e555	50	unsigned int flen;
1da177e4 LT	51	struct svc_fh tfh;
1da177e4 LT	52	char * tname;
29d5e555	53	unsigned int tlen;
1da177e4 LT	54	};
	55
	56	struct nfsd_readlinkargs {
	57	struct svc_fh fh;
	58	char * buffer;
	59	};
	60
	61	struct nfsd_linkargs {
	62	struct svc_fh ffh;
	63	struct svc_fh tfh;
	64	char * tname;
29d5e555	65	unsigned int tlen;
1da177e4 LT	66	};
	67
	68	struct nfsd_symlinkargs {
	69	struct svc_fh ffh;
	70	char * fname;
29d5e555	71	unsigned int flen;
1da177e4	72	char * tname;
48b4ba3f	73	unsigned int tlen;
1da177e4	74	struct iattr attrs;
38a70315	75	struct kvec first;
1da177e4 LT	76	};
	77
	78	struct nfsd_readdirargs {
	79	struct svc_fh fh;
	80	__u32 cookie;
	81	__u32 count;
131a21c2	82	__be32 * buffer;
1da177e4 LT	83	};
	84
	85	struct nfsd_attrstat {
	86	struct svc_fh fh;
a334de28	87	struct kstat stat;
1da177e4 LT	88	};
	89
	90	struct nfsd_diropres {
	91	struct svc_fh fh;
a334de28	92	struct kstat stat;
1da177e4 LT	93	};
	94
	95	struct nfsd_readlinkres {
	96	int len;
	97	};
	98
	99	struct nfsd_readres {
	100	struct svc_fh fh;
	101	unsigned long count;
a334de28	102	struct kstat stat;
1da177e4 LT	103	};
	104
	105	struct nfsd_readdirres {
	106	int count;
	107
	108	struct readdir_cd common;
131a21c2	109	__be32 * buffer;
1da177e4	110	int buflen;
131a21c2	111	__be32 * offset;
1da177e4 LT	112	};
	113
	114	struct nfsd_statfsres {
	115	struct kstatfs stats;
	116	};
	117
	118	/*
	119	* Storage requirements for XDR arguments and results.
	120	*/
	121	union nfsd_xdrstore {
	122	struct nfsd_sattrargs sattr;
	123	struct nfsd_diropargs dirop;
	124	struct nfsd_readargs read;
	125	struct nfsd_writeargs write;
	126	struct nfsd_createargs create;
	127	struct nfsd_renameargs rename;
	128	struct nfsd_linkargs link;
	129	struct nfsd_symlinkargs symlink;
	130	struct nfsd_readdirargs readdir;
	131	};
	132
	133	#define NFS2_SVC_XDRSIZE sizeof(union nfsd_xdrstore)
	134
	135
026fec7e CH	136	int nfssvc_decode_void(struct svc_rqst , __be32 );
	137	int nfssvc_decode_fhandle(struct svc_rqst , __be32 );
	138	int nfssvc_decode_sattrargs(struct svc_rqst , __be32 );
	139	int nfssvc_decode_diropargs(struct svc_rqst , __be32 );
	140	int nfssvc_decode_readargs(struct svc_rqst , __be32 );
	141	int nfssvc_decode_writeargs(struct svc_rqst , __be32 );
	142	int nfssvc_decode_createargs(struct svc_rqst , __be32 );
	143	int nfssvc_decode_renameargs(struct svc_rqst , __be32 );
	144	int nfssvc_decode_readlinkargs(struct svc_rqst , __be32 );
	145	int nfssvc_decode_linkargs(struct svc_rqst , __be32 );
	146	int nfssvc_decode_symlinkargs(struct svc_rqst , __be32 );
	147	int nfssvc_decode_readdirargs(struct svc_rqst , __be32 );
63f8de37 CH	148	int nfssvc_encode_void(struct svc_rqst , __be32 );
	149	int nfssvc_encode_attrstat(struct svc_rqst , __be32 );
	150	int nfssvc_encode_diropres(struct svc_rqst , __be32 );
	151	int nfssvc_encode_readlinkres(struct svc_rqst , __be32 );
	152	int nfssvc_encode_readres(struct svc_rqst , __be32 );
	153	int nfssvc_encode_statfsres(struct svc_rqst , __be32 );
	154	int nfssvc_encode_readdirres(struct svc_rqst , __be32 );
1da177e4	155
a0ad13ef N	156	int nfssvc_encode_entry(void , const char name,
a0ad13ef N	157	int namlen, loff_t offset, u64 ino, unsigned int);
1da177e4	158
8537488b	159	void nfssvc_release_fhandle(struct svc_rqst *);
1da177e4	160
a257cdd0	161	/* Helper functions for NFSv2 ACL code */
4f4a4fad	162	__be32 nfs2svc_encode_fattr(struct svc_rqst rqstp, __be32 p, struct svc_fh fhp, struct kstat *stat);
131a21c2	163	__be32 nfs2svc_decode_fh(__be32 p, struct svc_fh *fhp);
a257cdd0	164
1da177e4	165	#endif /* LINUX_NFSD_H */