linux/include/linux/lockd/bind.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * linux/include/linux/lockd/bind.h
 *
 * This is the part of lockd visible to nfsd and the nfs client.
 *
 * Copyright (C) 1996, Olaf Kirch <[email protected]>
 */

#ifndef LINUX_LOCKD_BIND_H
#define LINUX_LOCKD_BIND_H

#include <linux/lockd/nlm.h>
/* need xdr-encoded error codes too, so... */
#include <linux/lockd/xdr.h>
#ifdef CONFIG_LOCKD_V4
#include <linux/lockd/xdr4.h>
#endif

/* Dummy declarations */
struct svc_rqst;
struct rpc_task;
struct rpc_clnt;

/*
 * This is the set of functions for lockd->nfsd communication
 */
struct nlmsvc_binding { … };

extern const struct nlmsvc_binding *nlmsvc_ops;

/*
 * Similar to nfs_client_initdata, but without the NFS-specific
 * rpc_ops field.
 */
struct nlmclnt_initdata { … };

/*
 * Functions exported by the lockd module
 */

extern struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init);
extern void	nlmclnt_done(struct nlm_host *host);
extern struct rpc_clnt *nlmclnt_rpc_clnt(struct nlm_host *host);

/*
 * NLM client operations provide a means to modify RPC processing of NLM
 * requests.  Callbacks receive a pointer to data passed into the call to
 * nlmclnt_proc().
 */
struct nlmclnt_operations { … };

extern int	nlmclnt_proc(struct nlm_host *host, int cmd, struct file_lock *fl, void *data);
extern int	lockd_up(struct net *net, const struct cred *cred);
extern void	lockd_down(struct net *net);

#endif /* LINUX_LOCKD_BIND_H */