callback.h 1.5 KB
Newer Older
L
Linus Torvalds 已提交
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
/*
 * 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 {
T
Trond Myklebust 已提交
27
	unsigned int taglen;
L
Linus Torvalds 已提交
28 29 30 31 32 33
	const char *tag;
	unsigned int callback_ident;
	unsigned nops;
};

struct cb_compound_hdr_res {
34
	__be32 *status;
T
Trond Myklebust 已提交
35
	unsigned int taglen;
L
Linus Torvalds 已提交
36
	const char *tag;
37
	__be32 *nops;
L
Linus Torvalds 已提交
38 39 40
};

struct cb_getattrargs {
41
	struct sockaddr *addr;
L
Linus Torvalds 已提交
42 43 44 45 46
	struct nfs_fh fh;
	uint32_t bitmap[2];
};

struct cb_getattrres {
47
	__be32 status;
L
Linus Torvalds 已提交
48 49 50 51 52 53 54 55
	uint32_t bitmap[2];
	uint64_t size;
	uint64_t change_attr;
	struct timespec ctime;
	struct timespec mtime;
};

struct cb_recallargs {
56
	struct sockaddr *addr;
L
Linus Torvalds 已提交
57 58 59 60 61
	struct nfs_fh fh;
	nfs4_stateid stateid;
	uint32_t truncate;
};

62 63
extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *res);
extern __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy);
L
Linus Torvalds 已提交
64

65
#ifdef CONFIG_NFS_V4
L
Linus Torvalds 已提交
66
extern int nfs_callback_up(void);
67 68 69 70 71
extern void nfs_callback_down(void);
#else
#define nfs_callback_up()	(0)
#define nfs_callback_down()	do {} while(0)
#endif
L
Linus Torvalds 已提交
72

73
extern unsigned int nfs_callback_set_tcpport;
L
Linus Torvalds 已提交
74
extern unsigned short nfs_callback_tcpport;
75
extern unsigned short nfs_callback_tcpport6;
L
Linus Torvalds 已提交
76 77

#endif /* __LINUX_FS_NFS_CALLBACK_H */