+/*
+ * libcryptsetup - cryptsetup library internal
+ *
+ * Copyright (C) 2004, Christophe Saout <christophe@saout.de>
+ * Copyright (C) 2004-2007, Clemens Fruhwirth <clemens@endorphin.org>
+ * Copyright (C) 2009-2012, Red Hat, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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 INTERNAL_H
#define INTERNAL_H
#include <inttypes.h>
#include "nls.h"
+#include "bitops.h"
#include "utils_crypt.h"
#include "utils_loop.h"
#include "utils_dm.h"
+#include "utils_fips.h"
+#include "crypto_backend.h"
+
+#include "libcryptsetup.h"
/* to silent gcc -Wcast-qual for const cast */
#define CONST_CAST(x) (x)(uintptr_t)
#define SECTOR_SIZE (1 << SECTOR_SHIFT)
#define DEFAULT_DISK_ALIGNMENT 1048576 /* 1MiB */
#define DEFAULT_MEM_ALIGNMENT 4096
-
-/* private struct crypt_options flags */
-
-#define CRYPT_FLAG_FREE_DEVICE (1 << 24)
-#define CRYPT_FLAG_FREE_CIPHER (1 << 25)
-
-#define CRYPT_FLAG_PRIVATE_MASK ((unsigned int)-1 << 24)
+#define MAX_ERROR_LENGTH 512
#define at_least(a, b) ({ __typeof__(a) __at_least = (a); (__at_least >= (b))?__at_least:(b); })
struct volume_key *crypt_generate_volume_key(struct crypt_device *cd, unsigned keylength);
void crypt_free_volume_key(struct volume_key *vk);
-int crypt_confirm(struct crypt_device *cd, const char *msg);
+/* Device backend */
+struct device;
+int device_alloc(struct device **device, const char *path);
+void device_free(struct device *device);
+const char *device_path(const struct device *device);
+const char *device_block_path(const struct device *device);
+void device_topology_alignment(struct device *device,
+ unsigned long *required_alignment, /* bytes */
+ unsigned long *alignment_offset, /* bytes */
+ unsigned long default_alignment);
+int device_block_size(struct device *device);
+int device_read_ahead(struct device *device, uint32_t *read_ahead);
+int device_size(struct device *device, uint64_t *size);
-void set_error_va(const char *fmt, va_list va);
-void set_error(const char *fmt, ...);
-const char *get_error(void);
+enum devcheck { DEV_OK = 0, DEV_EXCL = 1, DEV_SHARED = 2 };
+int device_block_adjust(struct crypt_device *cd,
+ struct device *device,
+ enum devcheck device_check,
+ uint64_t device_offset,
+ uint64_t *size,
+ uint32_t *flags);
+size_t size_round_up(size_t size, unsigned int block);
+
+/* Receive backend devices from context helpers */
+struct device *crypt_metadata_device(struct crypt_device *cd);
+struct device *crypt_data_device(struct crypt_device *cd);
+
+int crypt_confirm(struct crypt_device *cd, const char *msg);
char *crypt_lookup_dev(const char *dev_id);
-int crypt_sysfs_check_crypt_segment(const char *device, uint64_t offset, uint64_t size);
int crypt_sysfs_get_rotational(int major, int minor, int *rotational);
-int sector_size_for_device(const char *device);
-int device_read_ahead(const char *dev, uint32_t *read_ahead);
-ssize_t write_blockwise(int fd, void *buf, size_t count);
-ssize_t read_blockwise(int fd, void *_buf, size_t count);
-ssize_t write_lseek_blockwise(int fd, char *buf, size_t count, off_t offset);
-int device_ready(struct crypt_device *cd, const char *device, int mode);
-int device_size(const char *device, uint64_t *size);
+ssize_t write_blockwise(int fd, int bsize, void *buf, size_t count);
+ssize_t read_blockwise(int fd, int bsize, void *_buf, size_t count);
+ssize_t write_lseek_blockwise(int fd, int bsize, char *buf, size_t count, off_t offset);
-enum devcheck { DEV_OK = 0, DEV_EXCL = 1, DEV_SHARED = 2 };
-int device_check_and_adjust(struct crypt_device *cd,
- const char *device,
- enum devcheck device_check,
- uint64_t *size,
- uint64_t *offset,
- uint32_t *flags);
+unsigned crypt_getpagesize(void);
+int init_crypto(struct crypt_device *ctx);
void logger(struct crypt_device *cd, int class, const char *file, int line, const char *format, ...);
#define log_dbg(x...) logger(NULL, CRYPT_LOG_DEBUG, __FILE__, __LINE__, x)
#define log_std(c, x...) logger(c, CRYPT_LOG_NORMAL, __FILE__, __LINE__, x)
#define log_verbose(c, x...) logger(c, CRYPT_LOG_VERBOSE, __FILE__, __LINE__, x)
-#define log_err(c, x...) do { \
- logger(c, CRYPT_LOG_ERROR, __FILE__, __LINE__, x); \
- set_error(x); } while(0)
+#define log_err(c, x...) logger(c, CRYPT_LOG_ERROR, __FILE__, __LINE__, x)
int crypt_get_debug_level(void);
-void debug_processes_using_device(const char *name);
int crypt_memlock_inc(struct crypt_device *ctx);
int crypt_memlock_dec(struct crypt_device *ctx);
-void get_topology_alignment(const char *device,
- unsigned long *required_alignment, /* bytes */
- unsigned long *alignment_offset, /* bytes */
- unsigned long default_alignment);
-
-enum { CRYPT_RND_NORMAL = 0, CRYPT_RND_KEY = 1 };
int crypt_random_init(struct crypt_device *ctx);
int crypt_random_get(struct crypt_device *ctx, char *buf, size_t len, int quality);
void crypt_random_exit(void);
* random algorithm */
} crypt_wipe_type;
-int crypt_wipe(const char *device,
+int crypt_wipe(struct device *device,
uint64_t offset,
uint64_t sectors,
crypt_wipe_type type,