1 /* 2 * linux/include/linux/lockd/bind.h 3 * 4 * This is the part of lockd visible to nfsd and the nfs client. 5 * 6 * Copyright (C) 1996, Olaf Kirch <[email protected]> 7 */ 8 9 #ifndef LINUX_LOCKD_BIND_H 10 #define LINUX_LOCKD_BIND_H 11 12 #include <linux/lockd/nlm.h> 13 /* need xdr-encoded error codes too, so... */ 14 #include <linux/lockd/xdr.h> 15 #ifdef CONFIG_LOCKD_V4 16 #include <linux/lockd/xdr4.h> 17 #endif 18 19 /* Dummy declarations */ 20 struct svc_rqst; 21 22 /* 23 * This is the set of functions for lockd->nfsd communication 24 */ 25 struct nlmsvc_binding { 26 __be32 (*fopen)(struct svc_rqst *, 27 struct nfs_fh *, 28 struct file **); 29 void (*fclose)(struct file *); 30 unsigned long (*get_grace_period)(void); 31 }; 32 33 extern struct nlmsvc_binding * nlmsvc_ops; 34 35 /* 36 * Similar to nfs_client_initdata, but without the NFS-specific 37 * rpc_ops field. 38 */ 39 struct nlmclnt_initdata { 40 const char *hostname; 41 const struct sockaddr *address; 42 size_t addrlen; 43 unsigned short protocol; 44 u32 nfs_version; 45 }; 46 47 /* 48 * Functions exported by the lockd module 49 */ 50 51 extern struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init); 52 extern void nlmclnt_done(struct nlm_host *host); 53 54 extern int nlmclnt_proc(struct nlm_host *host, int cmd, 55 struct file_lock *fl); 56 extern int lockd_up(int proto); 57 extern void lockd_down(void); 58 59 unsigned long get_nfs_grace_period(void); 60 61 #ifdef CONFIG_NFSD_V4 62 unsigned long get_nfs4_grace_period(void); 63 #else 64 static inline unsigned long get_nfs4_grace_period(void) {return 0;} 65 #endif 66 67 #endif /* LINUX_LOCKD_BIND_H */ 68