[net-next-2.6.git] / fs / nfs / callback.h

/*
 * linux/fs/nfs/callback.h
 *
 * Copyright (C) 2004 Trond Myklebust
 *
 * NFSv4 callback definitions
 */
#ifndef __LINUX_FS_NFS_CALLBACK_H
#define __LINUX_FS_NFS_CALLBACK_H

#define NFS4_CALLBACK 0x40000000
#define NFS4_CALLBACK_XDRSIZE 2048
#define NFS4_CALLBACK_BUFSIZE (1024 + NFS4_CALLBACK_XDRSIZE)

enum nfs4_callback_procnum {
	CB_NULL = 0,
	CB_COMPOUND = 1,
};

enum nfs4_callback_opnum {
	OP_CB_GETATTR = 3,
	OP_CB_RECALL  = 4,
	OP_CB_ILLEGAL = 10044,
};

struct cb_compound_hdr_arg {
	unsigned int taglen;
	const char *tag;
	unsigned int callback_ident;
	unsigned nops;
};

struct cb_compound_hdr_res {
	__be32 *status;
	unsigned int taglen;
	const char *tag;
	__be32 *nops;
};

struct cb_getattrargs {
	struct sockaddr_in *addr;
	struct nfs_fh fh;
	uint32_t bitmap[2];
};

struct cb_getattrres {
	__be32 status;
	uint32_t bitmap[2];
	uint64_t size;
	uint64_t change_attr;
	struct timespec ctime;
	struct timespec mtime;
};

struct cb_recallargs {
	struct sockaddr_in *addr;
	struct nfs_fh fh;
	nfs4_stateid stateid;
	uint32_t truncate;
};

extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *res);
extern __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy);

#ifdef CONFIG_NFS_V4
extern int nfs_callback_up(void);
extern void nfs_callback_down(void);
#else
#define nfs_callback_up()	(0)
#define nfs_callback_down()	do {} while(0)
#endif

extern unsigned int nfs_callback_set_tcpport;
extern unsigned short nfs_callback_tcpport;

#endif /* __LINUX_FS_NFS_CALLBACK_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/fs/nfs/callback.h
	3	*
	4	* Copyright (C) 2004 Trond Myklebust
	5	*
	6	* NFSv4 callback definitions
	7	*/
	8	#ifndef __LINUX_FS_NFS_CALLBACK_H
	9	#define __LINUX_FS_NFS_CALLBACK_H
	10
	11	#define NFS4_CALLBACK 0x40000000
	12	#define NFS4_CALLBACK_XDRSIZE 2048
	13	#define NFS4_CALLBACK_BUFSIZE (1024 + NFS4_CALLBACK_XDRSIZE)
	14
	15	enum nfs4_callback_procnum {
	16	CB_NULL = 0,
	17	CB_COMPOUND = 1,
	18	};
	19
	20	enum nfs4_callback_opnum {
	21	OP_CB_GETATTR = 3,
	22	OP_CB_RECALL = 4,
	23	OP_CB_ILLEGAL = 10044,
	24	};
	25
	26	struct cb_compound_hdr_arg {
2e42c3e2	27	unsigned int taglen;
1da177e4 LT	28	const char *tag;
	29	unsigned int callback_ident;
	30	unsigned nops;
	31	};
	32
	33	struct cb_compound_hdr_res {
5704fdeb	34	__be32 *status;
2e42c3e2	35	unsigned int taglen;
1da177e4	36	const char *tag;
5704fdeb	37	__be32 *nops;
1da177e4 LT	38	};
	39
	40	struct cb_getattrargs {
	41	struct sockaddr_in *addr;
	42	struct nfs_fh fh;
	43	uint32_t bitmap[2];
	44	};
	45
	46	struct cb_getattrres {
e6f684f6	47	__be32 status;
1da177e4 LT	48	uint32_t bitmap[2];
	49	uint64_t size;
	50	uint64_t change_attr;
	51	struct timespec ctime;
	52	struct timespec mtime;
	53	};
	54
	55	struct cb_recallargs {
	56	struct sockaddr_in *addr;
	57	struct nfs_fh fh;
	58	nfs4_stateid stateid;
	59	uint32_t truncate;
	60	};
	61
e6f684f6 AV	62	extern __be32 nfs4_callback_getattr(struct cb_getattrargs args, struct cb_getattrres res);
e6f684f6 AV	63	extern __be32 nfs4_callback_recall(struct cb_recallargs args, void dummy);
1da177e4	64
5ae1fbce	65	#ifdef CONFIG_NFS_V4
1da177e4	66	extern int nfs_callback_up(void);
5ae1fbce DH	67	extern void nfs_callback_down(void);
	68	#else
	69	#define nfs_callback_up() (0)
	70	#define nfs_callback_down() do {} while(0)
	71	#endif
1da177e4	72
a72b4422	73	extern unsigned int nfs_callback_set_tcpport;
1da177e4 LT	74	extern unsigned short nfs_callback_tcpport;
	75
	76	#endif /* __LINUX_FS_NFS_CALLBACK_H */