[deb_libnfs.git] / include / nfsc / libnfs-raw.h

/*
   Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as published by
   the Free Software Foundation; either version 2.1 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License
   along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
/*
 * This is the lowlevel interface to access NFS resources.
 * Through this interface you have access to the full gamut of nfs and nfs related
 * protocol as well as the XDR encoded/decoded structures.
 */
#ifndef _LIBNFS_RAW_H_
#define _LIBNFS_RAW_H_

#include <stdint.h>
#include <nfsc/libnfs-zdr.h>

struct rpc_data {
       int size;
       unsigned char *data;
};

struct rpc_context;
struct rpc_context *rpc_init_context(void);
void rpc_destroy_context(struct rpc_context *rpc);

void rpc_set_auth(struct rpc_context *rpc, struct AUTH *auth);

int rpc_get_fd(struct rpc_context *rpc);
int rpc_which_events(struct rpc_context *rpc);
int rpc_service(struct rpc_context *rpc, int revents);
char *rpc_get_error(struct rpc_context *rpc);
int rpc_queue_length(struct rpc_context *rpc);

/* Utility function to get an RPC context from a NFS context. Useful for doing low level NFSACL
 * calls on a NFS context.
 */
struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs);

/* This function returns the nfs_fh3 structure from a nfsfh structure.
   This allows to use a file onened with nfs_open() together with low-level
   rpc functions that thake a nfs filehandle
*/
struct nfs_fh3 *nfs_get_fh(struct nfsfh *nfsfh);

/* Control what the next XID value to be used on the context will be.
   This can be used when multiple contexts are used to the same server
   to avoid that the two contexts have xid collissions.
 */
void rpc_set_next_xid(struct rpc_context *rpc, uint32_t xid);

#define RPC_STATUS_SUCCESS	   	0
#define RPC_STATUS_ERROR		1
#define RPC_STATUS_CANCEL		2

/*
 * Async connection to the tcp port at server:port.
 * Function returns
 *  0 : The connection was initiated. Once the connection establish finishes, the callback will be invoked.
 * <0 : An error occured when trying to set up the connection. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : The tcp connection was successfully established.
 *                      data is NULL.
 * RPC_STATUS_ERROR   : The connection failed to establish.
 *                      data is the erro string.
 * RPC_STATUS_CANCEL  : The connection attempt was aborted before it could complete.
 *                    : data is NULL.
 */
int rpc_connect_async(struct rpc_context *rpc, const char *server, int port, rpc_cb cb, void *private_data);
/*
 * Async function to connect to a specific RPC program/version
 * Function returns
 *  0 : The connection was initiated. Once the connection establish finishes, the callback will be invoked.
 * <0 : An error occured when trying to set up the connection. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : The tcp connection was successfully established.
 *                      data is NULL.
 * RPC_STATUS_ERROR   : The connection failed to establish.
 *                      data is the erro string.
 * RPC_STATUS_CANCEL  : The connection attempt was aborted before it could complete.
 *                    : data is NULL.
 */
int rpc_connect_program_async(struct rpc_context *rpc, char *server, int program, int version, rpc_cb cb, void *private_data);
/*
 * When disconnecting a connection in flight. All commands in flight will be called with the callback
 * and status RPC_STATUS_ERROR. Data will be the error string for the disconnection.
 */
int rpc_disconnect(struct rpc_context *rpc, char *error);


/* 
 * PORTMAP FUNCTIONS
 */

/*
 * Call PORTMAPPER/NULL
 * Function returns
 *  0 : The connection was initiated. Once the connection establish finishes, the callback will be invoked.
 * <0 : An error occured when trying to set up the connection. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the portmapper daemon.
 *                      data is NULL.
 * RPC_STATUS_ERROR   : An error occured when trying to contact the portmapper.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_pmap_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data);


/*
 * Call PORTMAPPER/GETPORT.
 * Function returns
 *  0 : The connection was initiated. Once the connection establish finishes, the callback will be invoked.
 * <0 : An error occured when trying to set up the connection. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the portmapper daemon.
 *                      data is a (uint32_t *), containing the port returned.
 * RPC_STATUS_ERROR   : An error occured when trying to contact the portmapper.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_pmap_getport_async(struct rpc_context *rpc, int program, int version, int protocol, rpc_cb cb, void *private_data);

/*
 * Call PORTMAPPER/SET
 * Function returns
 *  0 : The connection was initiated. Once the connection establish finishes, the callback will be invoked.
 * <0 : An error occured when trying to set up the connection. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the portmapper daemon.
 *                      data is a (uint32_t *), containing status
 * RPC_STATUS_ERROR   : An error occured when trying to contact the portmapper.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_pmap_set_async(struct rpc_context *rpc, int program, int version, int protocol, int port, rpc_cb cb, void *private_data);

/*
 * Call PORTMAPPER/UNSET
 * Function returns
 *  0 : The connection was initiated. Once the connection establish finishes, the callback will be invoked.
 * <0 : An error occured when trying to set up the connection. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the portmapper daemon.
 *                      data is a (uint32_t *), containing status
 * RPC_STATUS_ERROR   : An error occured when trying to contact the portmapper.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_pmap_unset_async(struct rpc_context *rpc, int program, int version, int protocol, int port, rpc_cb cb, void *private_data);

/*
 * Call PORTMAPPER/CALLIT.
 * Function returns
 *  0 : The connection was initiated. Once the connection establish finishes, the callback will be invoked.
 * <0 : An error occured when trying to set up the connection. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the portmapper daemon
 *                      data is a 'pmap_call_result' pointer.
 * RPC_STATUS_ERROR   : An error occured when trying to contact the portmapper.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_pmap_callit_async(struct rpc_context *rpc, int program, int version, int procedure, char *data, int datalen, rpc_cb cb, void *private_data);

/* 
 * MOUNT FUNCTIONS
 */
char *mountstat3_to_str(int stat);
int mountstat3_to_errno(int error);

/*
 * Call MOUNT/NULL
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the mount daemon.
 *                      data is NULL.
 * RPC_STATUS_ERROR   : An error occured when trying to contact the mount daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_mount_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data);

/*
 * Call MOUNT/MNT
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the mount daemon.
 *                      data is union mountres3.
 * RPC_STATUS_ERROR   : An error occured when trying to contact the mount daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_mount_mnt_async(struct rpc_context *rpc, rpc_cb cb, char *export, void *private_data);

/*
 * Call MOUNT/DUMP
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the mount daemon.
 *                      data is a mountlist.
 * RPC_STATUS_ERROR   : An error occured when trying to contact the mount daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_mount_dump_async(struct rpc_context *rpc, rpc_cb cb, void *private_data);

/*
 * Call MOUNT/UMNT
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the mount daemon.
 *                      data NULL.
 * RPC_STATUS_ERROR   : An error occured when trying to contact the mount daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_mount_umnt_async(struct rpc_context *rpc, rpc_cb cb, char *export, void *private_data);

/*
 * Call MOUNT/UMNTALL
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the mount daemon.
 *                      data NULL.
 * RPC_STATUS_ERROR   : An error occured when trying to contact the mount daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_mount_umntall_async(struct rpc_context *rpc, rpc_cb cb, void *private_data);

/*
 * Call MOUNT/EXPORT
 * NOTE: You must include 'libnfs-raw-mount.h' to get the definitions of the
 * returned structures.
 *
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the mount daemon.
 *                      data is a pointer to an exports pointer:
 *                      exports export = *(exports *)data;
 * RPC_STATUS_ERROR   : An error occured when trying to contact the mount daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_mount_export_async(struct rpc_context *rpc, rpc_cb cb, void *private_data);


/* 
 * NFS FUNCTIONS
 */
struct nfs_fh3;
char *nfsstat3_to_str(int error);
int nfsstat3_to_errno(int error);

/*
 * Call NFS/NULL
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is NULL.
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data);

/*
 * Call NFS/GETATTR
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is GETATTR3res
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_getattr_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, void *private_data);

/*
 * Call NFS/PATHCONF
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is PATHCONF3res
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_pathconf_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, void *private_data);

/*
 * Call NFS/LOOKUP
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is LOOKUP3res
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_lookup_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, char *name, void *private_data);

/*
 * Call NFS/ACCESS
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is ACCESS3res
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_access_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, int access, void *private_data);

/*
 * Call NFS/READ
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is READ3res
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_read_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, uint64_t offset, uint64_t count, void *private_data);

/*
 * Call NFS/WRITE
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is WRITE3res *
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_write_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, char *buf, uint64_t offset, uint64_t count, int stable_how, void *private_data);

/*
 * Call NFS/COMMIT
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is COMMIT3res *
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_commit_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, void *private_data);


/*
 * Call NFS/SETATTR
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is SETATTR3res *
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
struct SETATTR3args;
int rpc_nfs_setattr_async(struct rpc_context *rpc, rpc_cb cb, struct SETATTR3args *args, void *private_data);


/*
 * Call NFS/MKDIR
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is MKDIR3res *
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
struct MKDIR3args;
int rpc_nfs_mkdir_async(struct rpc_context *rpc, rpc_cb cb, struct MKDIR3args *args, void *private_data);


/*
 * Call NFS/RMDIR
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is RMDIR3res *
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_rmdir_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, char *dir, void *private_data);


/*
 * Call NFS/CREATE
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is CREATE3res *
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
struct CREATE3args;
int rpc_nfs_create_async(struct rpc_context *rpc, rpc_cb cb, struct CREATE3args *args, void *private_data);


/*
 * Call NFS/MKNOD
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is MKNOD3res *
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_mknod_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, char *file, int mode, int major, int minor, void *private_data);


/*
 * Call NFS/REMOVE
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is REMOVE3res *
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_remove_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, char *name, void *private_data);


/*
 * Call NFS/READDIR
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is READDIR3res *
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_readdir_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, uint64_t cookie, char *cookieverf, int count, void *private_data);

/*
 * Call NFS/READDIRPLUS
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is READDIRPLUS3res *
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_readdirplus_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, uint64_t cookie, char *cookieverf, int count, void *private_data);

/*
 * Call NFS/FSSTAT
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is FSSTAT3res
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_fsstat_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, void *private_data);


/*
 * Call NFS/FSINFO
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is FSINFO3res
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_fsinfo_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, void *private_data);


/*
 * Call NFS/READLINK
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is READLINK3res *
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
struct READLINK3args;
int rpc_nfs_readlink_async(struct rpc_context *rpc, rpc_cb cb, struct READLINK3args *args, void *private_data);


/*
 * Call NFS/SYMLINK
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is SYMLINK3res *
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
struct SYMLINK3args;
int rpc_nfs_symlink_async(struct rpc_context *rpc, rpc_cb cb, struct SYMLINK3args *args, void *private_data);


/*
 * Call NFS/RENAME
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is RENAME3res *
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_rename_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *olddir, char *oldname, struct nfs_fh3 *newdir, char *newname, void *private_data);


/*
 * Call NFS/LINK
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is LINK3res *
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfs_link_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *file, struct nfs_fh3 *newdir, char *newname, void *private_data);


/* 
 * RQUOTA FUNCTIONS
 */
char *rquotastat_to_str(int error);
int rquotastat_to_errno(int error);

/*
 * Call RQUOTA1/NULL
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the rquota daemon.
 *                      data is NULL.
 * RPC_STATUS_ERROR   : An error occured when trying to contact the rquota daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_rquota1_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data);

/*
 * Call RQUOTA1/GETQUOTA
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the rquota daemon.
 *                      data is a RQUOTA1res structure.
 * RPC_STATUS_ERROR   : An error occured when trying to contact the rquota daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_rquota1_getquota_async(struct rpc_context *rpc, rpc_cb cb, char *export, int uid, void *private_data);

/*
 * Call RQUOTA1/GETACTIVEQUOTA
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the rquota daemon.
 *                      data is a RQUOTA1res structure.
 * RPC_STATUS_ERROR   : An error occured when trying to contact the rquota daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_rquota1_getactivequota_async(struct rpc_context *rpc, rpc_cb cb, char *export, int uid, void *private_data);


/*
 * Call RQUOTA2/NULL
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the rquota daemon.
 *                      data is NULL.
 * RPC_STATUS_ERROR   : An error occured when trying to contact the rquota daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_rquota2_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data);

/*
 * Call RQUOTA2/GETQUOTA
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the rquota daemon.
 *                      data is a RQUOTA1res structure.
 * RPC_STATUS_ERROR   : An error occured when trying to contact the rquota daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_rquota2_getquota_async(struct rpc_context *rpc, rpc_cb cb, char *export, int type, int uid, void *private_data);

/*
 * Call RQUOTA2/GETACTIVEQUOTA
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the rquota daemon.
 *                      data is a RQUOTA1res structure.
 * RPC_STATUS_ERROR   : An error occured when trying to contact the rquota daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_rquota2_getactivequota_async(struct rpc_context *rpc, rpc_cb cb, char *export, int type, int uid, void *private_data);


/*
 * NFSACL functions 
 */

/*
 * Call NFSACL/NULL
 * Call the NULL procedure for the NFSACL
 *
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the rquota daemon.
 *                      data is NULL
 * RPC_STATUS_ERROR   : An error occured when trying to contact the rquota daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nfsacl_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data);

/*
 * Call NFSACL/GETACL
 *
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is a GETACL3res pointer
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
struct GETACL3args;
int rpc_nfsacl_getacl_async(struct rpc_context *rpc, rpc_cb cb, struct GETACL3args *args, void *private_data);


/*
 * Call NFSACL/SETACL
 *
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
 *                      data is a SETACL3res pointer
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
struct SETACL3args;
int rpc_nfsacl_setacl_async(struct rpc_context *rpc, rpc_cb cb, struct SETACL3args *args, void *private_data);


/*
 * NLM functions
 */
char *nlmstat4_to_str(int stat);
	
/*
 * Call NLM/NULL
 * Call the NULL procedure for the NLM protocol
 *
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nlm daemon.
 *                      data is NULL
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nlm daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nlm4_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data);

/*
 * Call NLM/TEST
 * Call the TEST procedure for the NLM protocol
 *
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nlm daemon.
 *                      data is NLM4_TESTres
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nlm daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
struct NLM4_TESTargs;
int rpc_nlm4_test_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_TESTargs *args, void *private_data);

/*
 * Call NLM/LOCK
 * Call the LOCK procedure for the NLM protocol
 *
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nlm daemon.
 *                      data is NLM4_LOCKres
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nlm daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
struct NLM4_LOCKargs;
int rpc_nlm4_lock_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_LOCKargs *args, void *private_data);

/*
 * Call NLM/CANCEL
 * Call the CANCEL procedure for the NLM protocol
 *
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nlm daemon.
 *                      data is NLM4_CANCres
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nlm daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
struct NLM4_CANCargs;
int rpc_nlm4_cancel_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_CANCargs *args, void *private_data);

/*
 * Call NLM/UNLOCK
 * Call the UNLOCK procedure for the NLM protocol
 *
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nlm daemon.
 *                      data is NLM4_UNLOCKres
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nlm daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
struct NLM4_UNLOCKargs;
int rpc_nlm4_unlock_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_UNLOCKargs *args, void *private_data);

/*
 * NSM functions
 */
char *nsmstat1_to_str(int stat);
	
/*
 * Call NSM/NULL
 * Call the NULL procedure for the NSM protocol
 *
 * Function returns
 *  0 : The call was initiated. The callback will be invoked when the call completes.
 * <0 : An error occured when trying to set up the call. The callback will not be invoked.
 *
 * When the callback is invoked, status indicates the result:
 * RPC_STATUS_SUCCESS : We got a successful response from the nsm daemon.
 *                      data is NULL
 * RPC_STATUS_ERROR   : An error occured when trying to contact the nsm daemon.
 *                      data is the error string.
 * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
 *                     data is NULL.
 */
int rpc_nsm1_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data);


#endif