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-rw-r--r--xlators/nfs/server/src/nfs3-fh.c352
1 files changed, 121 insertions, 231 deletions
diff --git a/xlators/nfs/server/src/nfs3-fh.c b/xlators/nfs/server/src/nfs3-fh.c
index 7a7a06da058..caa3cfa6995 100644
--- a/xlators/nfs/server/src/nfs3-fh.c
+++ b/xlators/nfs/server/src/nfs3-fh.c
@@ -1,296 +1,186 @@
/*
- Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com>
+ 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/>.
+ 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.
*/
-#ifndef _CONFIG_H
-#define _CONFIG_H
-#include "config.h"
-#endif
-
#include "rpcsvc.h"
-#include "dict.h"
-#include "xlator.h"
+#include <glusterfs/dict.h>
+#include <glusterfs/xlator.h>
#include "xdr-nfs3.h"
#include "msg-nfs3.h"
-#include "iobuf.h"
+#include <glusterfs/iobuf.h>
#include "nfs3-fh.h"
#include "nfs-common.h"
-#include "iatt.h"
-
+#include <glusterfs/iatt.h>
+#include <glusterfs/common-utils.h>
+#include "nfs-messages.h"
int
-nfs3_fh_validate (struct nfs3_fh *fh)
+nfs3_fh_validate(struct nfs3_fh *fh)
{
- if (!fh)
- return 0;
-
- if (fh->ident[0] != GF_NFSFH_IDENT0)
- return 0;
+ if (!fh)
+ return 0;
- if (fh->ident[1] != GF_NFSFH_IDENT1)
- return 0;
+ if (fh->ident[0] != GF_NFSFH_IDENT0)
+ return 0;
- return 1;
-}
+ if (fh->ident[1] != GF_NFSFH_IDENT1)
+ return 0;
+ if (fh->ident[2] != GF_NFSFH_IDENT2)
+ return 0;
-xlator_t *
-nfs3_fh_to_xlator (xlator_list_t *cl, struct nfs3_fh *fh)
-{
- if ((!cl) || (!fh))
- return NULL;
+ if (fh->ident[3] != GF_NFSFH_IDENT3)
+ return 0;
- return nfs_xlid_to_xlator (cl, fh->xlatorid);
+ return 1;
}
void
-nfs3_fh_init (struct nfs3_fh *fh, struct iatt *buf)
+nfs3_fh_init(struct nfs3_fh *fh, struct iatt *buf)
{
- if ((!fh) || (!buf))
- return;
+ if ((!fh) || (!buf))
+ return;
- fh->ident[0] = GF_NFSFH_IDENT0;
- fh->ident[1] = GF_NFSFH_IDENT1;
-
- fh->hashcount = 0;
- fh->gen = buf->ia_gen;
- fh->ino = buf->ia_ino;
+ fh->ident[0] = GF_NFSFH_IDENT0;
+ fh->ident[1] = GF_NFSFH_IDENT1;
+ fh->ident[2] = GF_NFSFH_IDENT2;
+ fh->ident[3] = GF_NFSFH_IDENT3;
+ gf_uuid_copy(fh->gfid, buf->ia_gfid);
}
-
struct nfs3_fh
-nfs3_fh_build_root_fh (xlator_list_t *cl, xlator_t *xl)
+nfs3_fh_build_indexed_root_fh(xlator_list_t *cl, xlator_t *xl)
{
- struct nfs3_fh fh = {{0}, };
- struct iatt buf = {0, };
- if ((!cl) || (!xl))
- return fh;
-
- nfs3_fh_init (&fh, &buf);
- fh.xlatorid = nfs_xlator_to_xlid (cl, xl);
- fh.ino = 1;
- fh.gen = 0;
+ struct nfs3_fh fh = {
+ {0},
+ };
+ struct iatt buf = {
+ 0,
+ };
+ static uuid_t root = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
+
+ if ((!cl) || (!xl))
return fh;
-}
+ gf_uuid_copy(buf.ia_gfid, root);
+ nfs3_fh_init(&fh, &buf);
+ fh.exportid[15] = nfs_xlator_to_xlid(cl, xl);
-int
-nfs3_fh_is_root_fh (struct nfs3_fh *fh)
-{
- if (!fh)
- return 0;
-
- if (fh->hashcount == 0)
- return 1;
-
- return 0;
+ return fh;
}
-
-nfs3_hash_entry_t
-nfs3_fh_hash_entry (ino_t ino, uint64_t gen)
+struct nfs3_fh
+nfs3_fh_build_uuid_root_fh(uuid_t volumeid, uuid_t mountid)
{
- nfs3_hash_entry_t hash = 0;
- int shiftsize = 48;
- nfs3_hash_entry_t inomsb = 0;
- nfs3_hash_entry_t inolsb = 0;
- nfs3_hash_entry_t inols23b = 0;
-
- nfs3_hash_entry_t genmsb = 0;
- nfs3_hash_entry_t genlsb = 0;
- nfs3_hash_entry_t genls23b = 0;
-
- hash = ino;
- while (shiftsize != 0) {
- hash ^= (ino >> shiftsize);
- shiftsize -= 16;
- }
-/*
- gf_log ("FILEHANDLE", GF_LOG_TRACE, "INO %"PRIu64, ino);
- gf_log ("FILEHANDLE",GF_LOG_TRACE, "PRI HASH %d", hash);
-*/
- inomsb = (ino >> 56);
-// gf_log ("FILEHANDLE", GF_LOG_TRACE, "inomsb %d", inomsb);
-
- inolsb = ((ino << 56) >> 56);
-// gf_log ("FILEHANDLE", GF_LOG_TRACE, "inolsb %d", inolsb);
-
- inolsb = (inolsb << 8);
-// gf_log ("FILEHANDLE", GF_LOG_TRACE, "inolsb to inomsb %d", inolsb);
- inols23b = ((ino << 40) >> 48);
-// gf_log ("FILEHANDLE", GF_LOG_TRACE, "inols23b %d", inols23b);
-
- inols23b = (inols23b << 8);
-// gf_log ("FILEHDNALE", GF_LOG_TRACE, "inols23b %d", inols23b);
-
- genmsb = (gen >> 56);
-// gf_log ("FILEHANDLE", GF_LOG_TRACE, "inomsb %d", inomsb);
-
- genlsb = ((gen << 56) >> 56);
-// gf_log ("FILEHANDLE", GF_LOG_TRACE, "inolsb %d", inolsb);
-
- genlsb = (genlsb << 8);
-// gf_log ("FILEHANDLE", GF_LOG_TRACE, "inolsb to inomsb %d", inolsb);
+ struct nfs3_fh fh = {
+ {0},
+ };
+ struct iatt buf = {
+ 0,
+ };
+ static uuid_t root = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
+
+ gf_uuid_copy(buf.ia_gfid, root);
+ nfs3_fh_init(&fh, &buf);
+ gf_uuid_copy(fh.exportid, volumeid);
+ gf_uuid_copy(fh.mountid, mountid);
+
+ return fh;
+}
- genls23b = ((gen << 40) >> 48);
-// gf_log ("FILEHANDLE", GF_LOG_TRACE, "inols23b %d", inols23b);
+int
+nfs3_fh_is_root_fh(struct nfs3_fh *fh)
+{
+ static uuid_t rootgfid = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
- genls23b = (genls23b << 8);
-// gf_log ("FILEHDNALE", GF_LOG_TRACE, "inols23b %d", inols23b);
+ if (!fh)
+ return 0;
- hash ^= inolsb ^ inomsb ^ inols23b ^ genmsb ^ genlsb ^ genls23b;
- return hash;
+ if (gf_uuid_compare(fh->gfid, rootgfid) == 0)
+ return 1;
+ return 0;
}
-
void
-nfs3_fh_to_str (struct nfs3_fh *fh, char *str)
+nfs3_fh_to_str(struct nfs3_fh *fh, char *str, size_t len)
{
- if ((!fh) || (!str))
- return;
+ char gfid[GF_UUID_BUF_SIZE];
+ char exportid[GF_UUID_BUF_SIZE];
+ char mountid[GF_UUID_BUF_SIZE];
- sprintf (str, "FH: hashcount %d, xlid %d, gen %"PRIu64", ino %"PRIu64,
- fh->hashcount, fh->xlatorid, fh->gen, fh->ino);
-}
-
-
-void
-nfs3_log_fh (struct nfs3_fh *fh)
-{
-// int x = 0;
- if (!fh)
- return;
+ if ((!fh) || (!str))
+ return;
- gf_log ("nfs3-fh", GF_LOG_TRACE, "filehandle: hashcount %d, xlid %d, "
- "gen %"PRIu64", ino %"PRIu64, fh->hashcount, fh->xlatorid,
- fh->gen, fh->ino);
-/*
- for (; x < fh->hashcount; ++x)
- gf_log ("FILEHANDLE", GF_LOG_TRACE, "Hash %d: %d", x,
- fh->entryhash[x]);
-*/
+ snprintf(str, len, "FH: exportid %s, gfid %s, mountid %s",
+ uuid_utoa_r(fh->exportid, exportid), uuid_utoa_r(fh->gfid, gfid),
+ uuid_utoa_r(fh->mountid, mountid));
}
-
-int
-nfs3_fh_build_parent_fh (struct nfs3_fh *child, struct iatt *newstat,
- struct nfs3_fh *newfh)
+void
+nfs3_log_fh(struct nfs3_fh *fh)
{
- if ((!child) || (!newstat) || (!newfh))
- return -1;
-
- nfs3_fh_init (newfh, newstat);
- newfh->xlatorid = child->xlatorid;
- if ((newstat->ia_ino == 1) && (newstat->ia_gen == 0)) {
- newfh->ino = 1;
- newfh->gen = 0;
- goto done;
- }
-
- newfh->hashcount = child->hashcount - 1;
- memcpy (newfh->entryhash, child->entryhash,
- newfh->hashcount * GF_NFSFH_ENTRYHASH_SIZE);
+ char gfidstr[512];
+ char exportidstr[512];
-done:
-// nfs3_log_fh (newfh);
+ if (!fh)
+ return;
- return 0;
+ gf_msg_trace("nfs3-fh", 0, "filehandle: exportid 0x%s, gfid 0x%s",
+ uuid_utoa_r(fh->exportid, exportidstr),
+ uuid_utoa_r(fh->gfid, gfidstr));
}
-
-
int
-nfs3_fh_build_child_fh (struct nfs3_fh *parent, struct iatt *newstat,
+nfs3_fh_build_parent_fh(struct nfs3_fh *child, struct iatt *newstat,
struct nfs3_fh *newfh)
{
- int hashcount = 0;
- int entry = 0;
-
- if ((!parent) || (!newstat) || (!newfh))
- return -1;
-
- nfs3_fh_init (newfh, newstat);
- newfh->xlatorid = parent->xlatorid;
- if ((newstat->ia_ino == 1) && (newstat->ia_gen == 0)) {
- newfh->ino = 1;
- newfh->gen = 0;
- goto done;
- }
-
- newfh->hashcount = parent->hashcount + 1;
- /* Only copy the hashes that are available in the parent file
- * handle. */
- if (parent->hashcount > GF_NFSFH_MAXHASHES)
- hashcount = GF_NFSFH_MAXHASHES;
- else
- hashcount = parent->hashcount;
-
- memcpy (newfh->entryhash, parent->entryhash,
- hashcount * GF_NFSFH_ENTRYHASH_SIZE);
-
- /* Do not insert parent dir hash if there is no space left in the hash
- * array of the child entry. */
- if (newfh->hashcount <= GF_NFSFH_MAXHASHES) {
- entry = newfh->hashcount - 1;
- newfh->entryhash[entry] = nfs3_fh_hash_entry (parent->ino,
- parent->gen);
- }
-
-done:
-// nfs3_log_fh (newfh);
+ if ((!child) || (!newstat) || (!newfh))
+ return -1;
- return 0;
+ nfs3_fh_init(newfh, newstat);
+ gf_uuid_copy(newfh->exportid, child->exportid);
+ return 0;
}
-
-uint32_t
-nfs3_fh_compute_size (struct nfs3_fh *fh)
+int
+nfs3_build_fh(inode_t *inode, uuid_t exportid, struct nfs3_fh *newfh)
{
- uint32_t fhlen = 0;
-
- if (!fh)
- return 0;
-
- if (fh->hashcount <= GF_NFSFH_MAXHASHES)
- fhlen = nfs3_fh_hashcounted_size (fh->hashcount);
- else
- fhlen = nfs3_fh_hashcounted_size (GF_NFSFH_MAXHASHES);
-
- return fhlen;
+ 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;
+ gf_uuid_copy(newfh->gfid, inode->gfid);
+ gf_uuid_copy(newfh->exportid, exportid);
+ /*gf_uuid_copy (newfh->mountid, mountid);*/
+ return 0;
}
-
-/* There is no point searching at a directory level which is beyond that of
- * the hashcount given in the file handle.
- */
int
-nfs3_fh_hash_index_is_beyond (struct nfs3_fh *fh, int hashidx)
+nfs3_fh_build_child_fh(struct nfs3_fh *parent, struct iatt *newstat,
+ struct nfs3_fh *newfh)
{
- if (!fh)
- return 1;
-
- if (fh->hashcount >= hashidx)
- return 0;
- else
- return 1;
+ if ((!parent) || (!newstat) || (!newfh))
+ return -1;
- return 1;
+ nfs3_fh_init(newfh, newstat);
+ gf_uuid_copy(newfh->exportid, parent->exportid);
+ gf_uuid_copy(newfh->mountid, parent->mountid);
+ return 0;
}
+uint32_t
+nfs3_fh_compute_size()
+{
+ return GF_NFSFH_STATIC_SIZE;
+}
generated by cgit (git 2.34.1) at 2026-01-04 05:20:29 +0000