| /* |
| * linux/include/linux/lockd/bind.h |
| * |
| * This is the part of lockd visible to nfsd and the nfs client. |
| * |
| * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de> |
| */ |
| |
| #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; |
| |
| /* |
| * This is the set of functions for lockd->nfsd communication |
| */ |
| struct nlmsvc_binding { |
| __be32 (*fopen)(struct svc_rqst *, |
| struct nfs_fh *, |
| struct file **); |
| void (*fclose)(struct file *); |
| }; |
| |
| extern const struct nlmsvc_binding *nlmsvc_ops; |
| |
| /* |
| * Similar to nfs_client_initdata, but without the NFS-specific |
| * rpc_ops field. |
| */ |
| struct nlmclnt_initdata { |
| const char *hostname; |
| const struct sockaddr *address; |
| size_t addrlen; |
| unsigned short protocol; |
| u32 nfs_version; |
| int noresvport; |
| struct net *net; |
| const struct nlmclnt_operations *nlmclnt_ops; |
| }; |
| |
| /* |
| * 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); |
| |
| /* |
| * 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 { |
| /* Called on successful allocation of nlm_rqst, use for allocation or |
| * reference counting. */ |
| void (*nlmclnt_alloc_call)(void *); |
| |
| /* Called in rpc_task_prepare for unlock. A return value of true |
| * indicates the callback has put the task to sleep on a waitqueue |
| * and NLM should not call rpc_call_start(). */ |
| bool (*nlmclnt_unlock_prepare)(struct rpc_task*, void *); |
| |
| /* Called when the nlm_rqst is freed, callbacks should clean up here */ |
| void (*nlmclnt_release_call)(void *); |
| }; |
| |
| extern int nlmclnt_proc(struct nlm_host *host, int cmd, struct file_lock *fl, void *data); |
| extern int lockd_up(struct net *net); |
| extern void lockd_down(struct net *net); |
| |
| #endif /* LINUX_LOCKD_BIND_H */ |