summaryrefslogtreecommitdiffstats
path: root/xlators/nfs/server/src/nfs3-fh.c
diff options
context:
space:
mode:
Diffstat (limited to 'xlators/nfs/server/src/nfs3-fh.c')
-rw-r--r--xlators/nfs/server/src/nfs3-fh.c183
1 files changed, 34 insertions, 149 deletions
diff --git a/xlators/nfs/server/src/nfs3-fh.c b/xlators/nfs/server/src/nfs3-fh.c
index 9aea88137..e199c56dc 100644
--- a/xlators/nfs/server/src/nfs3-fh.c
+++ b/xlators/nfs/server/src/nfs3-fh.c
@@ -2,19 +2,10 @@
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
@@ -46,6 +37,12 @@ nfs3_fh_validate (struct nfs3_fh *fh)
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;
}
@@ -58,8 +55,9 @@ nfs3_fh_init (struct nfs3_fh *fh, struct iatt *buf)
fh->ident[0] = GF_NFSFH_IDENT0;
fh->ident[1] = GF_NFSFH_IDENT1;
+ fh->ident[2] = GF_NFSFH_IDENT2;
+ fh->ident[3] = GF_NFSFH_IDENT3;
- fh->hashcount = 0;
uuid_copy (fh->gfid, buf->ia_gfid);
}
@@ -112,99 +110,33 @@ nfs3_fh_is_root_fh (struct nfs3_fh *fh)
}
-nfs3_hash_entry_t
-nfs3_fh_hash_entry (uuid_t gfid)
-{
- nfs3_hash_entry_t hash = 0;
- int shiftsize = 48;
- uint64_t ino = 0;
- uint64_t gen = 0;
- 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;
-
- memcpy (&ino, &gfid[8], 8);
- 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);
-
- memcpy (&gen, &gfid[0], 8);
- 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);
-
- genls23b = ((gen << 40) >> 48);
-// gf_log ("FILEHANDLE", GF_LOG_TRACE, "inols23b %d", inols23b);
-
- genls23b = (genls23b << 8);
-// gf_log ("FILEHDNALE", GF_LOG_TRACE, "inols23b %d", inols23b);
-
- hash ^= inolsb ^ inomsb ^ inols23b ^ genmsb ^ genlsb ^ genls23b;
- return hash;
-
-}
-
void
-nfs3_fh_to_str (struct nfs3_fh *fh, char *str)
+nfs3_fh_to_str (struct nfs3_fh *fh, char *str, size_t len)
{
- char gfid[512];
- char exportid[512];
+ char gfid[GF_UUID_BUF_SIZE];
+ char exportid[GF_UUID_BUF_SIZE];
if ((!fh) || (!str))
return;
- sprintf (str, "FH: hashcount %d, exportid %s, gfid %s",
- fh->hashcount, uuid_utoa_r (fh->exportid, exportid),
- uuid_utoa_r (fh->gfid, gfid));
+ 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)
{
-// int x = 0;
char gfidstr[512];
char exportidstr[512];
if (!fh)
return;
- gf_log ("nfs3-fh", GF_LOG_TRACE, "filehandle: hashcount %d, exportid "
- "0x%s, gfid 0x%s", fh->hashcount,
+ 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));
-/*
- for (; x < fh->hashcount; ++x)
- gf_log ("FILEHANDLE", GF_LOG_TRACE, "Hash %d: %d", x,
- fh->entryhash[x]);
-*/
}
int
@@ -216,53 +148,35 @@ nfs3_fh_build_parent_fh (struct nfs3_fh *child, struct iatt *newstat,
nfs3_fh_init (newfh, newstat);
uuid_copy (newfh->exportid, child->exportid);
- if (newstat->ia_ino == 1)
- goto done;
- newfh->hashcount = child->hashcount - 1;
- memcpy (newfh->entryhash, child->entryhash,
- newfh->hashcount * GF_NFSFH_ENTRYHASH_SIZE);
+ return 0;
+}
-done:
-// nfs3_log_fh (newfh);
+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)
{
- int hashcount = 0;
- int entry = 0;
-
if ((!parent) || (!newstat) || (!newfh))
return -1;
nfs3_fh_init (newfh, newstat);
uuid_copy (newfh->exportid, parent->exportid);
- 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->gfid);
- }
-
-// nfs3_log_fh (newfh);
-
return 0;
}
@@ -270,34 +184,5 @@ nfs3_fh_build_child_fh (struct nfs3_fh *parent, struct iatt *newstat,
uint32_t
nfs3_fh_compute_size (struct nfs3_fh *fh)
{
- 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;
-}
-
-
-/* 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)
-{
- if (!fh)
- return 1;
-
- if (fh->hashcount >= hashidx)
- return 0;
- else
- return 1;
-
- return 1;
+ return GF_NFSFH_STATIC_SIZE;
}
-
generated by cgit (git 2.34.1) at 2026-01-04 19:00:15 +0000