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/*
Copyright (c) 2010-2011 Gluster, Inc. <http://www.gluster.com>
This file is part of GlusterFS.
GlusterFS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.
GlusterFS 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see
<http://www.gnu.org/licenses/>.
*/
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
#include "rpcsvc.h"
#include "dict.h"
#include "xlator.h"
#include "xdr-nfs3.h"
#include "msg-nfs3.h"
#include "iobuf.h"
#include "nfs3-fh.h"
#include "nfs-common.h"
#include "iatt.h"
#include "common-utils.h"
int
nfs3_fh_validate (struct nfs3_fh *fh)
{
if (!fh)
return 0;
if (fh->ident[0] != GF_NFSFH_IDENT0)
return 0;
if (fh->ident[1] != GF_NFSFH_IDENT1)
return 0;
if (fh->ident[2] != GF_NFSFH_IDENT2)
return 0;
if (fh->ident[3] != GF_NFSFH_IDENT3)
return 0;
return 1;
}
void
nfs3_fh_init (struct nfs3_fh *fh, struct iatt *buf)
{
if ((!fh) || (!buf))
return;
fh->ident[0] = GF_NFSFH_IDENT0;
fh->ident[1] = GF_NFSFH_IDENT1;
fh->ident[2] = GF_NFSFH_IDENT2;
fh->ident[3] = GF_NFSFH_IDENT3;
uuid_copy (fh->gfid, buf->ia_gfid);
}
struct nfs3_fh
nfs3_fh_build_indexed_root_fh (xlator_list_t *cl, xlator_t *xl)
{
struct nfs3_fh fh = {{0}, };
struct iatt buf = {0, };
uuid_t root = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
if ((!cl) || (!xl))
return fh;
uuid_copy (buf.ia_gfid, root);
nfs3_fh_init (&fh, &buf);
fh.exportid [15] = nfs_xlator_to_xlid (cl, xl);
return fh;
}
struct nfs3_fh
nfs3_fh_build_uuid_root_fh (uuid_t volumeid)
{
struct nfs3_fh fh = {{0}, };
struct iatt buf = {0, };
uuid_t root = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
uuid_copy (buf.ia_gfid, root);
nfs3_fh_init (&fh, &buf);
uuid_copy (fh.exportid, volumeid);
return fh;
}
int
nfs3_fh_is_root_fh (struct nfs3_fh *fh)
{
uuid_t rootgfid = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
if (!fh)
return 0;
if (uuid_compare (fh->gfid, rootgfid) == 0)
return 1;
return 0;
}
void
nfs3_fh_to_str (struct nfs3_fh *fh, char *str, size_t len)
{
char gfid[GF_UUID_BUF_SIZE];
char exportid[GF_UUID_BUF_SIZE];
if ((!fh) || (!str))
return;
snprintf (str, len, "FH: exportid %s, gfid %s",
uuid_utoa_r (fh->exportid, exportid),
uuid_utoa_r (fh->gfid, gfid));
}
void
nfs3_log_fh (struct nfs3_fh *fh)
{
char gfidstr[512];
char exportidstr[512];
if (!fh)
return;
gf_log ("nfs3-fh", GF_LOG_TRACE, "filehandle: exportid "
"0x%s, gfid 0x%s",
uuid_utoa_r (fh->exportid, exportidstr),
uuid_utoa_r (fh->gfid, gfidstr));
}
int
nfs3_fh_build_parent_fh (struct nfs3_fh *child, struct iatt *newstat,
struct nfs3_fh *newfh)
{
if ((!child) || (!newstat) || (!newfh))
return -1;
nfs3_fh_init (newfh, newstat);
uuid_copy (newfh->exportid, child->exportid);
return 0;
}
int
nfs3_build_fh (inode_t *inode, uuid_t exportid, struct nfs3_fh *newfh)
{
if (!newfh || !inode)
return -1;
newfh->ident[0] = GF_NFSFH_IDENT0;
newfh->ident[1] = GF_NFSFH_IDENT1;
newfh->ident[2] = GF_NFSFH_IDENT2;
newfh->ident[3] = GF_NFSFH_IDENT3;
uuid_copy (newfh->gfid, inode->gfid);
uuid_copy (newfh->exportid, exportid);
return 0;
}
int
nfs3_fh_build_child_fh (struct nfs3_fh *parent, struct iatt *newstat,
struct nfs3_fh *newfh)
{
if ((!parent) || (!newstat) || (!newfh))
return -1;
nfs3_fh_init (newfh, newstat);
uuid_copy (newfh->exportid, parent->exportid);
return 0;
}
uint32_t
nfs3_fh_compute_size (struct nfs3_fh *fh)
{
return GF_NFSFH_STATIC_SIZE;
}
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