/* @(#)mount.x  2.1 88/08/01 4.0 RPCSRC */
/* @(#)mount.x 1.2 87/09/18 Copyr 1987 Sun Micro */

/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part.  Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California  94043
*/

/*
* Protocol description for the mount program
*/


const MNTPATHLEN = 1024;        /* maximum bytes in a pathname argument */
const MNTNAMLEN = 255;          /* maximum bytes in a name argument */
const FHSIZE = 32;              /* size in bytes of a file handle */

/*
* The fhandle is the file handle that the server passes to the client.
* All file operations are done using the file handles to refer to a file
* or a directory. The file handle can contain whatever information the
* server needs to distinguish an individual file.
*/
typedef opaque fhandle[FHSIZE];

/*
* If a status of zero is returned, the call completed successfully, and
* a file handle for the directory follows. A non-zero status indicates
* some sort of error. The status corresponds with UNIX error numbers.
*/
union fhstatus switch (unsigned fhs_status) {
case 0:
       fhandle fhs_fhandle;
default:
       void;
};

/*
* The type dirpath is the pathname of a directory
*/
typedef string dirpath<MNTPATHLEN>;

/*
* The type name is used for arbitrary names (hostnames, groupnames)
*/
typedef string name<MNTNAMLEN>;

/*
* A list of who has what mounted
*/
typedef struct mountbody *mountlist;
struct mountbody {
       name ml_hostname;
       dirpath ml_directory;
       mountlist ml_next;
};

/*
* A list of netgroups
*/
typedef struct groupnode *groups;
struct groupnode {
       name gr_name;
       groups gr_next;
};

/*
* A list of what is exported and to whom
*/
typedef struct exportnode *exports;
struct exportnode {
       dirpath ex_dir;
       groups ex_groups;
       exports ex_next;
};

program MOUNTPROG {
       /*
        * Version one of the mount protocol communicates with version two
        * of the NFS protocol. The only connecting point is the fhandle
        * structure, which is the same for both protocols.
        */
       version MOUNTVERS {
               /*
                * Does no work. It is made available in all RPC services
                * to allow server reponse testing and timing
                */
               void
               MOUNTPROC_NULL(void) = 0;

               /*
                * If fhs_status is 0, then fhs_fhandle contains the
                * file handle for the directory. This file handle may
                * be used in the NFS protocol. This procedure also adds
                * a new entry to the mount list for this client mounting
                * the directory.
                * Unix authentication required.
                */
               fhstatus
               MOUNTPROC_MNT(dirpath) = 1;

               /*
                * Returns the list of remotely mounted filesystems. The
                * mountlist contains one entry for each hostname and
                * directory pair.
                */
               mountlist
               MOUNTPROC_DUMP(void) = 2;

               /*
                * Removes the mount list entry for the directory
                * Unix authentication required.
                */
               void
               MOUNTPROC_UMNT(dirpath) = 3;

               /*
                * Removes all of the mount list entries for this client
                * Unix authentication required.
                */
               void
               MOUNTPROC_UMNTALL(void) = 4;

               /*
                * Returns a list of all the exported filesystems, and which
                * machines are allowed to import it.
                */
               exports
               MOUNTPROC_EXPORT(void)  = 5;

               /*
                * Identical to MOUNTPROC_EXPORT above
                */
               exports
               MOUNTPROC_EXPORTALL(void) = 6;
       } = 1;
} = 100005;