82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#ifndef _CDC_H
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#define _CDC_H
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#include <glib.h>
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#include <stdint.h>
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#define BLOCK_SZ (1024*1024*1)
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#define BLOCK_MIN_SZ (1024*256)
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#define BLOCK_MAX_SZ (1024*1024*4)
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#define BLOCK_WIN_SZ 48
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#define NAME_MAX_SZ 4096
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#define BREAK_VALUE 0x0013 ///0x0513
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#ifdef HAVE_MD5
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#include "md5.h"
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#define get_checksum md5
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#define CHECKSUM_LENGTH 16
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#else
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#include <openssl/sha.h>
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#define get_checksum sha1
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#define CHECKSUM_LENGTH 20
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#endif
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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struct _CDCFileDescriptor;
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struct _CDCDescriptor;
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struct SeafileCrypt;
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typedef int (*WriteblockFunc)(const char *repo_id,
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int version,
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struct _CDCDescriptor *chunk_descr,
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struct SeafileCrypt *crypt,
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uint8_t *checksum,
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gboolean write_data);
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/* define chunk file header and block entry */
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typedef struct _CDCFileDescriptor {
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uint32_t block_min_sz;
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uint32_t block_max_sz;
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uint32_t block_sz;
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uint64_t file_size;
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uint32_t block_nr;
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uint8_t *blk_sha1s;
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int max_block_nr;
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uint8_t file_sum[CHECKSUM_LENGTH];
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WriteblockFunc write_block;
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char repo_id[37];
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int version;
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} CDCFileDescriptor;
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typedef struct _CDCDescriptor {
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uint64_t offset;
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uint32_t len;
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uint8_t checksum[CHECKSUM_LENGTH];
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char *block_buf;
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int result;
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} CDCDescriptor;
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int file_chunk_cdc(int fd_src,
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CDCFileDescriptor *file_descr,
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struct SeafileCrypt *crypt,
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gboolean write_data);
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int filename_chunk_cdc(const char *filename,
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CDCFileDescriptor *file_descr,
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struct SeafileCrypt *crypt,
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gboolean write_data);
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void cdc_init ();
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#endif
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