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82 lines
2.2 KiB
82 lines
2.2 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* linux/include/linux/lockd/bind.h |
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* |
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* This is the part of lockd visible to nfsd and the nfs client. |
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* |
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* Copyright (C) 1996, Olaf Kirch <[email protected]> |
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*/ |
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#ifndef LINUX_LOCKD_BIND_H |
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#define LINUX_LOCKD_BIND_H |
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#include <linux/lockd/nlm.h> |
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/* need xdr-encoded error codes too, so... */ |
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#include <linux/lockd/xdr.h> |
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#ifdef CONFIG_LOCKD_V4 |
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#include <linux/lockd/xdr4.h> |
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#endif |
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/* Dummy declarations */ |
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struct svc_rqst; |
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struct rpc_task; |
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/* |
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* This is the set of functions for lockd->nfsd communication |
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*/ |
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struct nlmsvc_binding { |
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__be32 (*fopen)(struct svc_rqst *, |
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struct nfs_fh *, |
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struct file **); |
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void (*fclose)(struct file *); |
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}; |
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extern const struct nlmsvc_binding *nlmsvc_ops; |
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/* |
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* Similar to nfs_client_initdata, but without the NFS-specific |
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* rpc_ops field. |
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*/ |
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struct nlmclnt_initdata { |
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const char *hostname; |
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const struct sockaddr *address; |
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size_t addrlen; |
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unsigned short protocol; |
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u32 nfs_version; |
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int noresvport; |
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struct net *net; |
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const struct nlmclnt_operations *nlmclnt_ops; |
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const struct cred *cred; |
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}; |
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/* |
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* Functions exported by the lockd module |
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*/ |
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extern struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init); |
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extern void nlmclnt_done(struct nlm_host *host); |
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/* |
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* NLM client operations provide a means to modify RPC processing of NLM |
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* requests. Callbacks receive a pointer to data passed into the call to |
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* nlmclnt_proc(). |
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*/ |
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struct nlmclnt_operations { |
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/* Called on successful allocation of nlm_rqst, use for allocation or |
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* reference counting. */ |
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void (*nlmclnt_alloc_call)(void *); |
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/* Called in rpc_task_prepare for unlock. A return value of true |
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* indicates the callback has put the task to sleep on a waitqueue |
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* and NLM should not call rpc_call_start(). */ |
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bool (*nlmclnt_unlock_prepare)(struct rpc_task*, void *); |
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/* Called when the nlm_rqst is freed, callbacks should clean up here */ |
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void (*nlmclnt_release_call)(void *); |
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}; |
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extern int nlmclnt_proc(struct nlm_host *host, int cmd, struct file_lock *fl, void *data); |
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extern int lockd_up(struct net *net, const struct cred *cred); |
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extern void lockd_down(struct net *net); |
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#endif /* LINUX_LOCKD_BIND_H */
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