-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * libiam.c
- * iam user level library
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * Copyright (c) 2006 Cluster File Systems, Inc.
- * Author: Wang Di <wangdi@clusterfs.com>
- * Author: Nikita Danilov <nikita@clusterfs.com>
- * Author: Fan Yong <fanyong@clusterfs.com>
+ * This program 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 version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * This file is part of the Lustre file system, http://www.lustre.org
- * Lustre is a trademark of Cluster File Systems, Inc.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2014, 2015, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*
- * You may have signed or agreed to another license before downloading
- * this software. If so, you are bound by the terms and conditions
- * of that agreement, and the following does not apply to you. See the
- * LICENSE file included with this distribution for more information.
+ * lustre/utils/libiam.c
*
- * If you did not agree to a different license, then this copy of Lustre
- * is open source software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
+ * iam user level library
*
- * In either case, Lustre 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
- * license text for more details.
+ * Author: Wang Di <wangdi@clusterfs.com>
+ * Author: Nikita Danilov <nikita@clusterfs.com>
+ * Author: Fan Yong <fanyong@clusterfs.com>
*/
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
+#include <endian.h>
#include <errno.h>
-#include <assert.h>
-
+#include <sys/ioctl.h>
#include <sys/types.h>
-#ifdef HAVE_ENDIAN_H
-#include <endian.h>
-#endif
-
-#include <libcfs/libcfs.h>
-#include <liblustre.h>
+#include <libcfs/util/string.h>
#include <lustre/libiam.h>
typedef __u32 lvar_hash_t;
LVAR_ROUND = LVAR_PAD - 1
};
+/**
+ * Stores \a val at \a dst, where the latter is possibly unaligned. Uses
+ * memcpy(). This macro is needed to avoid dependency of user level tools on
+ * the kernel headers.
+ */
+#define STORE_UNALIGNED(val, dst) \
+({ \
+ typeof(*(dst)) __val = (val); \
+ \
+ memcpy(dst, &__val, sizeof *(dst)); \
+})
+
static int root_limit(int rootgap, int blocksize, int size)
{
int limit;
root = buf;
*root = (typeof(*root)) {
- .ilr_magic = cpu_to_le64(IAM_LFIX_ROOT_MAGIC),
- .ilr_keysize = cpu_to_le16(keysize),
- .ilr_recsize = cpu_to_le16(recsize),
- .ilr_ptrsize = cpu_to_le16(ptrsize),
+ .ilr_magic = htole64(IAM_LFIX_ROOT_MAGIC),
+ .ilr_keysize = htole16(keysize),
+ .ilr_recsize = htole16(recsize),
+ .ilr_ptrsize = htole16(ptrsize),
.ilr_indirect_levels = 0
};
/*
* limit itself + one pointer to the leaf.
*/
- .count = cpu_to_le16(2),
+ .count = htole16(2),
.limit = lfix_root_limit(blocksize, keysize + ptrsize)
};
entry += keysize;
/* now @entry points to <ptr> */
if (ptrsize == 4)
- *(u_int32_t *)entry = cpu_to_le32(1);
+ STORE_UNALIGNED(htole32(1), (u_int32_t *)entry);
else
- *(u_int64_t *)entry = cpu_to_le64(1);
+ STORE_UNALIGNED(htole64(1), (u_int64_t *)entry);
}
static void lfix_leaf(void *buf,
/* form leaf */
head = buf;
*head = (typeof(*head)) {
- .ill_magic = cpu_to_le16(IAM_LEAF_HEADER_MAGIC),
+ .ill_magic = htole16(IAM_LEAF_HEADER_MAGIC),
/*
* Leaf contains an entry with the smallest possible key
* (created by zeroing).
*/
- .ill_count = cpu_to_le16(1),
+ .ill_count = htole16(1),
};
}
isize = sizeof(lvar_hash_t) + ptrsize;
root = buf;
*root = (typeof(*root)) {
- .vr_magic = cpu_to_le32(IAM_LVAR_ROOT_MAGIC),
- .vr_recsize = cpu_to_le16(recsize),
- .vr_ptrsize = cpu_to_le16(ptrsize),
+ .vr_magic = htole32(IAM_LVAR_ROOT_MAGIC),
+ .vr_recsize = htole16(recsize),
+ .vr_ptrsize = htole16(ptrsize),
.vr_indirect_levels = 0
};
/*
* limit itself + one pointer to the leaf.
*/
- .count = cpu_to_le16(2),
+ .count = htole16(2),
.limit = lvar_root_limit(blocksize, keysize + ptrsize)
};
entry += sizeof(lvar_hash_t);
/* now @entry points to <ptr> */
if (ptrsize == 4)
- *(u_int32_t *)entry = cpu_to_le32(1);
+ STORE_UNALIGNED(htole32(1), (u_int32_t *)entry);
else
- *(u_int64_t *)entry = cpu_to_le64(1);
+ STORE_UNALIGNED(htole64(1), (u_int64_t *)entry);
}
static int lvar_esize(int namelen, int recsize)
/* form leaf */
head = buf;
*head = (typeof(*head)) {
- .vlh_magic = cpu_to_le16(IAM_LVAR_LEAF_MAGIC),
- .vlh_used = cpu_to_le16(sizeof *head + lvar_esize(0, recsize))
+ .vlh_magic = htole16(IAM_LVAR_LEAF_MAGIC),
+ .vlh_used = htole16(sizeof *head + lvar_esize(0, recsize))
};
rec = (void *)(head + 1);
rec[offsetof(struct lvar_leaf_entry, vle_key)] = recsize;
unsigned char *area;
unsigned char *scan;
- area = calloc(strlen(number) / 2 + 2, sizeof(char));
+ area = calloc(strlen((char *)number) / 2 + 2, sizeof(char));
if (area != NULL) {
for (scan = area; *number; number += 2, scan++)
*scan = (hex2dec(number[0]) << 4) | hex2dec(number[1]);
static char *iam_convert(int size, int need_convert, char *source)
{
char *ptr;
- char *opt;
+ unsigned char *opt;
if (source == NULL)
return NULL;
return NULL;
if (need_convert) {
- opt = packdigit(source);
+ opt = packdigit((unsigned char*)source);
if (opt == NULL) {
free(ptr);
return NULL;
free(opt);
}
} else {
- strncpy(ptr, source, size + 1);
+ strlcpy(ptr, source, size + 1);
}
return ptr;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff