/*
  Copyright (c) 2007-2012 Red Hat, Inc. <http://www.redhat.com>
  This file is part of GlusterFS.

  This file is licensed to you under your choice of the GNU Lesser
  General Public License, version 3 or any later version (LGPLv3 or
  later), or the GNU General Public License, version 2 (GPLv2), in all
  cases as published by the Free Software Foundation.
*/

#include <sys/uio.h>
#include <rpc/rpc.h>
#include <rpc/xdr.h>
#include <sys/types.h>

#include "xdr-nfs3.h"
#include "msg-nfs3.h"
#include "xdr-generic.h"
#include "xdr-common.h"

/* Decode the mount path from the network message in inmsg
 * into the memory referenced by outpath.iov_base.
 * The size allocated for outpath.iov_base is outpath.iov_len.
 * The size of the path extracted from the message is returned.
 */
ssize_t
xdr_to_mountpath(struct iovec outpath, struct iovec inmsg)
{
    XDR xdr;
    ssize_t ret = -1;
    char *mntpath = NULL;

    if ((!outpath.iov_base) || (!inmsg.iov_base))
        return -1;

    xdrmem_create(&xdr, inmsg.iov_base, (unsigned int)inmsg.iov_len,
                  XDR_DECODE);

    mntpath = outpath.iov_base;
    if (!xdr_dirpath(&xdr, (dirpath *)&mntpath)) {
        ret = -1;
        goto ret;
    }

    ret = xdr_decoded_length(xdr);

ret:
    return ret;
}

/* Translate the mountres3 structure in res into XDR format into memory
 * referenced by outmsg.iov_base.
 * Returns the number of bytes used in encoding into XDR format.
 */
ssize_t
xdr_serialize_mountres3(struct iovec outmsg, mountres3 *res)
{
    return xdr_serialize_generic(outmsg, (void *)res, (xdrproc_t)xdr_mountres3);
}

ssize_t
xdr_serialize_mountbody(struct iovec outmsg, mountbody *mb)
{
    return xdr_serialize_generic(outmsg, (void *)mb, (xdrproc_t)xdr_mountbody);
}

ssize_t
xdr_serialize_mountlist(struct iovec outmsg, mountlist *ml)
{
    return xdr_serialize_generic(outmsg, (void *)ml, (xdrproc_t)xdr_mountlist);
}

ssize_t
xdr_serialize_mountstat3(struct iovec outmsg, mountstat3 *m)
{
    return xdr_serialize_generic(outmsg, (void *)m, (xdrproc_t)xdr_mountstat3);
}

ssize_t
xdr_to_getattr3args(struct iovec inmsg, getattr3args *ga)
{
    return xdr_to_generic(inmsg, (void *)ga, (xdrproc_t)xdr_getattr3args);
}

ssize_t
xdr_serialize_getattr3res(struct iovec outmsg, getattr3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_getattr3res);
}

ssize_t
xdr_serialize_setattr3res(struct iovec outmsg, setattr3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_setattr3res);
}

ssize_t
xdr_to_setattr3args(struct iovec inmsg, setattr3args *sa)
{
    return xdr_to_generic(inmsg, (void *)sa, (xdrproc_t)xdr_setattr3args);
}

ssize_t
xdr_serialize_lookup3res(struct iovec outmsg, lookup3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_lookup3res);
}

ssize_t
xdr_to_lookup3args(struct iovec inmsg, lookup3args *la)
{
    return xdr_to_generic(inmsg, (void *)la, (xdrproc_t)xdr_lookup3args);
}

ssize_t
xdr_to_access3args(struct iovec inmsg, access3args *ac)
{
    return xdr_to_generic(inmsg, (void *)ac, (xdrproc_t)xdr_access3args);
}

ssize_t
xdr_serialize_access3res(struct iovec outmsg, access3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_access3res);
}

ssize_t
xdr_to_readlink3args(struct iovec inmsg, readlink3args *ra)
{
    return xdr_to_generic(inmsg, (void *)ra, (xdrproc_t)xdr_readlink3args);
}

ssize_t
xdr_serialize_readlink3res(struct iovec outmsg, readlink3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_readlink3res);
}

ssize_t
xdr_to_read3args(struct iovec inmsg, read3args *ra)
{
    return xdr_to_generic(inmsg, (void *)ra, (xdrproc_t)xdr_read3args);
}

ssize_t
xdr_serialize_read3res(struct iovec outmsg, read3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res, (xdrproc_t)xdr_read3res);
}

ssize_t
xdr_serialize_read3res_nocopy(struct iovec outmsg, read3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_read3res_nocopy);
}

ssize_t
xdr_to_write3args(struct iovec inmsg, write3args *wa)
{
    return xdr_to_generic(inmsg, (void *)wa, (xdrproc_t)xdr_write3args);
}

ssize_t
xdr_to_write3args_nocopy(struct iovec inmsg, write3args *wa,
                         struct iovec *payload)
{
    return xdr_to_generic_payload(inmsg, (void *)wa, (xdrproc_t)xdr_write3args,
                                  payload);
}

ssize_t
xdr_serialize_write3res(struct iovec outmsg, write3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res, (xdrproc_t)xdr_write3res);
}

ssize_t
xdr_to_create3args(struct iovec inmsg, create3args *ca)
{
    return xdr_to_generic(inmsg, (void *)ca, (xdrproc_t)xdr_create3args);
}

ssize_t
xdr_serialize_create3res(struct iovec outmsg, create3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_create3res);
}

ssize_t
xdr_serialize_mkdir3res(struct iovec outmsg, mkdir3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res, (xdrproc_t)xdr_mkdir3res);
}

ssize_t
xdr_to_mkdir3args(struct iovec inmsg, mkdir3args *ma)
{
    return xdr_to_generic(inmsg, (void *)ma, (xdrproc_t)xdr_mkdir3args);
}

ssize_t
xdr_to_symlink3args(struct iovec inmsg, symlink3args *sa)
{
    return xdr_to_generic(inmsg, (void *)sa, (xdrproc_t)xdr_symlink3args);
}

ssize_t
xdr_serialize_symlink3res(struct iovec outmsg, symlink3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_symlink3res);
}

ssize_t
xdr_to_mknod3args(struct iovec inmsg, mknod3args *ma)
{
    return xdr_to_generic(inmsg, (void *)ma, (xdrproc_t)xdr_mknod3args);
}

ssize_t
xdr_serialize_mknod3res(struct iovec outmsg, mknod3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res, (xdrproc_t)xdr_mknod3res);
}

ssize_t
xdr_to_remove3args(struct iovec inmsg, remove3args *ra)
{
    return xdr_to_generic(inmsg, (void *)ra, (xdrproc_t)xdr_remove3args);
}

ssize_t
xdr_serialize_remove3res(struct iovec outmsg, remove3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_remove3res);
}

ssize_t
xdr_to_rmdir3args(struct iovec inmsg, rmdir3args *ra)
{
    return xdr_to_generic(inmsg, (void *)ra, (xdrproc_t)xdr_rmdir3args);
}

ssize_t
xdr_serialize_rmdir3res(struct iovec outmsg, rmdir3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res, (xdrproc_t)xdr_rmdir3res);
}

ssize_t
xdr_serialize_rename3res(struct iovec outmsg, rename3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_rename3res);
}

ssize_t
xdr_to_rename3args(struct iovec inmsg, rename3args *ra)
{
    return xdr_to_generic(inmsg, (void *)ra, (xdrproc_t)xdr_rename3args);
}

ssize_t
xdr_serialize_link3res(struct iovec outmsg, link3res *li)
{
    return xdr_serialize_generic(outmsg, (void *)li, (xdrproc_t)xdr_link3res);
}

ssize_t
xdr_to_link3args(struct iovec inmsg, link3args *la)
{
    return xdr_to_generic(inmsg, (void *)la, (xdrproc_t)xdr_link3args);
}

ssize_t
xdr_to_readdir3args(struct iovec inmsg, readdir3args *rd)
{
    return xdr_to_generic(inmsg, (void *)rd, (xdrproc_t)xdr_readdir3args);
}

ssize_t
xdr_serialize_readdir3res(struct iovec outmsg, readdir3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_readdir3res);
}

ssize_t
xdr_to_readdirp3args(struct iovec inmsg, readdirp3args *rp)
{
    return xdr_to_generic(inmsg, (void *)rp, (xdrproc_t)xdr_readdirp3args);
}

ssize_t
xdr_serialize_readdirp3res(struct iovec outmsg, readdirp3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_readdirp3res);
}

ssize_t
xdr_to_fsstat3args(struct iovec inmsg, fsstat3args *fa)
{
    return xdr_to_generic(inmsg, (void *)fa, (xdrproc_t)xdr_fsstat3args);
}

ssize_t
xdr_serialize_fsstat3res(struct iovec outmsg, fsstat3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_fsstat3res);
}

ssize_t
xdr_to_fsinfo3args(struct iovec inmsg, fsinfo3args *fi)
{
    return xdr_to_generic(inmsg, (void *)fi, (xdrproc_t)xdr_fsinfo3args);
}

ssize_t
xdr_serialize_fsinfo3res(struct iovec outmsg, fsinfo3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_fsinfo3res);
}

ssize_t
xdr_to_pathconf3args(struct iovec inmsg, pathconf3args *pc)
{
    return xdr_to_generic(inmsg, (void *)pc, (xdrproc_t)xdr_pathconf3args);
}

ssize_t
xdr_serialize_pathconf3res(struct iovec outmsg, pathconf3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_pathconf3res);
}

ssize_t
xdr_to_commit3args(struct iovec inmsg, commit3args *ca)
{
    return xdr_to_generic(inmsg, (void *)ca, (xdrproc_t)xdr_commit3args);
}

ssize_t
xdr_serialize_commit3res(struct iovec outmsg, commit3res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_commit3res);
}

ssize_t
xdr_serialize_exports(struct iovec outmsg, exports *elist)
{
    XDR xdr;
    ssize_t ret = -1;

    if ((!outmsg.iov_base) || (!elist))
        return -1;

    xdrmem_create(&xdr, outmsg.iov_base, (unsigned int)outmsg.iov_len,
                  XDR_ENCODE);

    if (!xdr_exports(&xdr, elist))
        goto ret;

    ret = xdr_decoded_length(xdr);

ret:
    return ret;
}

ssize_t
xdr_serialize_nfsstat3(struct iovec outmsg, nfsstat3 *s)
{
    return xdr_serialize_generic(outmsg, (void *)s, (xdrproc_t)xdr_nfsstat3);
}

ssize_t
xdr_to_nlm4_testargs(struct iovec inmsg, nlm4_testargs *args)
{
    return xdr_to_generic(inmsg, (void *)args, (xdrproc_t)xdr_nlm4_testargs);
}

ssize_t
xdr_serialize_nlm4_testres(struct iovec outmsg, nlm4_testres *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_nlm4_testres);
}

ssize_t
xdr_to_nlm4_lockargs(struct iovec inmsg, nlm4_lockargs *args)
{
    return xdr_to_generic(inmsg, (void *)args, (xdrproc_t)xdr_nlm4_lockargs);
}

ssize_t
xdr_serialize_nlm4_res(struct iovec outmsg, nlm4_res *res)
{
    return xdr_serialize_generic(outmsg, (void *)res, (xdrproc_t)xdr_nlm4_res);
}

ssize_t
xdr_to_nlm4_cancelargs(struct iovec inmsg, nlm4_cancargs *args)
{
    return xdr_to_generic(inmsg, (void *)args, (xdrproc_t)xdr_nlm4_cancargs);
}

ssize_t
xdr_to_nlm4_unlockargs(struct iovec inmsg, nlm4_unlockargs *args)
{
    return xdr_to_generic(inmsg, (void *)args, (xdrproc_t)xdr_nlm4_unlockargs);
}

ssize_t
xdr_to_nlm4_shareargs(struct iovec inmsg, nlm4_shareargs *args)
{
    return xdr_to_generic(inmsg, (void *)args, (xdrproc_t)xdr_nlm4_shareargs);
}

ssize_t
xdr_serialize_nlm4_shareres(struct iovec outmsg, nlm4_shareres *res)
{
    return xdr_serialize_generic(outmsg, (void *)res,
                                 (xdrproc_t)xdr_nlm4_shareres);
}

ssize_t
xdr_serialize_nlm4_testargs(struct iovec outmsg, nlm4_testargs *args)
{
    return xdr_serialize_generic(outmsg, (void *)args,
                                 (xdrproc_t)xdr_nlm4_testargs);
}

ssize_t
xdr_to_nlm4_res(struct iovec inmsg, nlm4_res *args)
{
    return xdr_to_generic(inmsg, (void *)args, (xdrproc_t)xdr_nlm4_res);
}

ssize_t
xdr_to_nlm4_freeallargs(struct iovec inmsg, nlm4_freeallargs *args)
{
    return xdr_to_generic(inmsg, (void *)args, (xdrproc_t)xdr_nlm4_freeallargs);
}

ssize_t
xdr_to_getaclargs(struct iovec inmsg, getaclargs *args)
{
    return xdr_to_generic(inmsg, (void *)args, (xdrproc_t)xdr_getaclargs);
}

ssize_t
xdr_to_setaclargs(struct iovec inmsg, setaclargs *args)
{
    return xdr_to_generic(inmsg, (void *)args, (xdrproc_t)xdr_setaclargs);
}

ssize_t
xdr_serialize_getaclreply(struct iovec inmsg, getaclreply *res)
{
    return xdr_serialize_generic(inmsg, (void *)res,
                                 (xdrproc_t)xdr_getaclreply);
}

ssize_t
xdr_serialize_setaclreply(struct iovec inmsg, setaclreply *res)
{
    return xdr_serialize_generic(inmsg, (void *)res,
                                 (xdrproc_t)xdr_setaclreply);
}