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/*
Copyright (c) 2017 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 "common-utils.h"
#include "xlator.h"
#include "syscall.h"
#include "logging.h"
#include "posix-messages.h"
int32_t
posix_set_gfid2path_xattr (xlator_t *this, const char *path, uuid_t pgfid,
const char *bname)
{
char xxh64[GF_XXH64_DIGEST_LENGTH*2+1] = {0,};
char pgfid_bname[1024] = {0,};
char *key = NULL;
char *val = NULL;
size_t key_size = 0;
size_t val_size = 0;
int ret = 0;
GF_VALIDATE_OR_GOTO ("posix", this, err);
snprintf (pgfid_bname, sizeof (pgfid_bname), "%s/%s", uuid_utoa (pgfid),
bname);
gf_xxh64_wrapper ((unsigned char *) pgfid_bname,
strlen(pgfid_bname), GF_XXHSUM64_DEFAULT_SEED, xxh64);
key_size = strlen(GFID2PATH_XATTR_KEY_PREFIX) + GF_XXH64_DIGEST_LENGTH*2+1;
key = alloca (key_size);
snprintf (key, key_size, GFID2PATH_XATTR_KEY_PREFIX"%s", xxh64);
val_size = UUID_CANONICAL_FORM_LEN + NAME_MAX + 2;
val = alloca (val_size);
snprintf (val, val_size, "%s/%s", uuid_utoa (pgfid), bname);
ret = sys_lsetxattr (path, key, val, strlen(val), XATTR_CREATE);
if (ret == -1) {
gf_msg (this->name, GF_LOG_WARNING, errno, P_MSG_PGFID_OP,
"setting gfid2path xattr failed on %s: key = %s ",
path, key);
goto err;
}
return 0;
err:
return -1;
}
int32_t
posix_remove_gfid2path_xattr (xlator_t *this, const char *path,
uuid_t pgfid, const char *bname)
{
char xxh64[GF_XXH64_DIGEST_LENGTH*2+1] = {0,};
char pgfid_bname[1024] = {0,};
int ret = 0;
char *key = NULL;
size_t key_size = 0;
GF_VALIDATE_OR_GOTO ("posix", this, err);
snprintf (pgfid_bname, sizeof (pgfid_bname), "%s/%s", uuid_utoa (pgfid),
bname);
gf_xxh64_wrapper ((unsigned char *) pgfid_bname,
strlen(pgfid_bname), GF_XXHSUM64_DEFAULT_SEED, xxh64);
key_size = strlen(GFID2PATH_XATTR_KEY_PREFIX) + GF_XXH64_DIGEST_LENGTH*2+1;
key = alloca (key_size);
snprintf (key, key_size, GFID2PATH_XATTR_KEY_PREFIX"%s", xxh64);
ret = sys_lremovexattr (path, key);
if (ret == -1) {
gf_msg (this->name, GF_LOG_WARNING, errno, P_MSG_PGFID_OP,
"removing gfid2path xattr failed on %s: key = %s",
path, key);
goto err;
}
return 0;
err:
return -1;
}
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