| /* |
| * 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 { |
| int taglen; |
| const char *tag; |
| unsigned int callback_ident; |
| unsigned nops; |
| }; |
| |
| struct cb_compound_hdr_res { |
| uint32_t *status; |
| int taglen; |
| const char *tag; |
| uint32_t *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 */ |