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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 08:06:26 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 08:06:26 +0000 |
commit | 1660d4b7a65d9ad2ce0deaa19d35579ca4084ac5 (patch) | |
tree | 6cf8220b628ebd2ccfc1375dd6516c6996e9abcc /lib/libcryptsetup_macros.h | |
parent | Initial commit. (diff) | |
download | cryptsetup-upstream.tar.xz cryptsetup-upstream.zip |
Adding upstream version 2:2.6.1.upstream/2%2.6.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | lib/libcryptsetup_macros.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/lib/libcryptsetup_macros.h b/lib/libcryptsetup_macros.h new file mode 100644 index 0000000..55187ab --- /dev/null +++ b/lib/libcryptsetup_macros.h @@ -0,0 +1,70 @@ +/* + * Definitions of common constant and generic macros of libcryptsetup + * + * Copyright (C) 2009-2023 Red Hat, Inc. All rights reserved. + * Copyright (C) 2009-2023 Milan Broz + * + * This program 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 2 + * of the License, or (at your option) any later version. + * + * 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 for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef _LIBCRYPTSETUP_MACROS_H +#define _LIBCRYPTSETUP_MACROS_H + +/* to silent gcc -Wcast-qual for const cast */ +#define CONST_CAST(x) (x)(uintptr_t) + +/* to silent clang -Wcast-align when working with byte arrays */ +#define VOIDP_CAST(x) (x)(void*) + +#define UNUSED(x) (void)(x) + +#ifndef ARRAY_SIZE +# define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) +#endif + +#define BITFIELD_SIZE(BF_PTR) (sizeof(*(BF_PTR)) * 8) + +#define MOVE_REF(x, y) \ + do { \ + __typeof__(x) *_px = &(x), *_py = &(y); \ + *_px = *_py; \ + *_py = NULL; \ + } while (0) + +#define FREE_AND_NULL(x) do { free(x); x = NULL; } while (0) + +#define AT_LEAST(a, b) ({ __typeof__(a) __at_least = (a); (__at_least >= (b))?__at_least:(b); }) + +#define SHIFT_4K 12 +#define SECTOR_SHIFT 9 +#define SECTOR_SIZE (1 << SECTOR_SHIFT) +#define MAX_SECTOR_SIZE 4096 /* min page size among all platforms */ +#define ROUND_SECTOR(x) (((x) + SECTOR_SIZE - 1) / SECTOR_SIZE) + +#define MISALIGNED(a, b) ((a) & ((b) - 1)) +#define MISALIGNED_4K(a) MISALIGNED((a), 1 << SHIFT_4K) +#define MISALIGNED_512(a) MISALIGNED((a), 1 << SECTOR_SHIFT) +#define NOTPOW2(a) MISALIGNED((a), (a)) + +#define DEFAULT_DISK_ALIGNMENT 1048576 /* 1MiB */ +#define DEFAULT_MEM_ALIGNMENT 4096 + +#define DM_UUID_LEN 129 +#define DM_BY_ID_PREFIX "dm-uuid-" +#define DM_BY_ID_PREFIX_LEN 8 +#define DM_UUID_PREFIX "CRYPT-" +#define DM_UUID_PREFIX_LEN 6 + +#endif /* _LIBCRYPTSETUP_MACROS_H */ |