include/linux/lockd/bind.h

   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 <okir@monad.swb.de>
   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 };
  31
  32 extern struct nlmsvc_binding *  nlmsvc_ops;
  33
  34 /*
  35  * Similar to nfs_client_initdata, but without the NFS-specific
  36  * rpc_ops field.
  37  */
  38 struct nlmclnt_initdata {
  39         const char              *hostname;
  40         const struct sockaddr   *address;
  41         size_t                  addrlen;
  42         unsigned short          protocol;
  43         u32                     nfs_version;
  44         int                     noresvport;
  45         struct net              *net;
  46 };
  47
  48 /*
  49  * Functions exported by the lockd module
  50  */
  51
  52 extern struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init);
  53 extern void     nlmclnt_done(struct nlm_host *host);
  54
  55 extern int      nlmclnt_proc(struct nlm_host *host, int cmd,
  56                                         struct file_lock *fl);
  57 extern int      lockd_up(struct net *net);
  58 extern void     lockd_down(struct net *net);
  59
  60 #endif /* LINUX_LOCKD_BIND_H */