/**
* main function - for clone or restore data
*/
int main(int argc, char **argv) {
#ifdef MEMTRACE
setenv("MALLOC_TRACE", "partclone_mtrace.log", 1);
mtrace();
#endif
char* source; /// source data
char* target; /// target data
int dfr, dfw; /// file descriptor for source and target
int r_size, w_size; /// read and write size
unsigned cs_size = 0; /// checksum_size
int cs_reseed = 1;
int start, stop; /// start, range, stop number for progress bar
unsigned long *bitmap = NULL; /// the point for bitmap data
int debug = 0; /// debug level
int tui = 0; /// text user interface
int pui = 0; /// progress mode(default text)
int flag;
int pres = 0;
pthread_t prog_thread;
void *p_result;
static const char *const bad_sectors_warning_msg =
"*************************************************************************\n"
"* WARNING: The disk has bad sectors. This means physical damage on the *\n"
"* disk surface caused by deterioration, manufacturing faults, or *\n"
"* another reason. The reliability of the disk may remain stable or *\n"
"* degrade quickly. Use the --rescue option to efficiently save as much *\n"
"* data as possible! *\n"
"*************************************************************************\n";
file_system_info fs_info; /// description of the file system
image_options img_opt;
init_fs_info(&fs_info);
init_image_options(&img_opt);
/**
* get option and assign to opt structure
* check parameter and read from argv
*/
parse_options(argc, argv, &opt);
/**
* if "-d / --debug" given
* open debug file in "/var/log/partclone.log" for log message
*/
memset(&fs_opt, 0, sizeof(fs_cmd_opt));
debug = opt.debug;
fs_opt.debug = debug;
fs_opt.ignore_fschk = opt.ignore_fschk;
//if(opt.debug)
open_log(opt.logfile);
/**
* using Text User Interface
*/
if (opt.ncurses) {
pui = NCURSES;
log_mesg(1, 0, 0, debug, "Using Ncurses User Interface mode.\n");
} else
pui = TEXT;
tui = open_pui(pui, opt.fresh);
if ((opt.ncurses) && (!tui)) {
opt.ncurses = 0;
pui = TEXT;
log_mesg(1, 0, 0, debug, "Open Ncurses User Interface Error.\n");
}
/// print partclone info
print_partclone_info(opt);
#ifndef CHKIMG
if (geteuid() != 0)
log_mesg(0, 1, 1, debug, "You are not logged as root. You may have \"access denied\" errors when working.\n");
else
log_mesg(1, 0, 0, debug, "UID is root.\n");
#endif
/// ignore crc check
if (opt.ignore_crc)
log_mesg(1, 0, 1, debug, "Ignore CRC errors\n");
/**
* open source and target
* clone mode, source is device and target is image file/stdout
* restore mode, source is image file/stdin and target is device
* dd mode, source is device and target is device !!not complete
*/
source = opt.source;
target = opt.target;
log_mesg(1, 0, 0, debug, "source=%s, target=%s \n", source, target);
dfr = open_source(source, &opt);
if (dfr == -1) {
log_mesg(0, 1, 1, debug, "Error exit\n");
}
#ifndef CHKIMG
dfw = open_target(target, &opt);
if (dfw == -1) {
log_mesg(0, 1, 1, debug, "Error exit\n");
}
#else
dfw = -1;
#endif
/**
* get partition information like super block, bitmap from device or image file.
*/
if (opt.clone) {
log_mesg(1, 0, 0, debug, "Initiate image options - version %s\n", IMAGE_VERSION_CURRENT);
img_opt.checksum_mode = opt.checksum_mode;
img_opt.checksum_size = get_checksum_size(opt.checksum_mode, opt.debug);
img_opt.blocks_per_checksum = opt.blocks_per_checksum;
img_opt.reseed_checksum = opt.reseed_checksum;
cs_size = img_opt.checksum_size;
cs_reseed = img_opt.reseed_checksum;
log_mesg(1, 0, 0, debug, "Initial image hdr - get Super Block from partition\n");
log_mesg(0, 0, 1, debug, "Reading Super Block\n");
/// get Super Block information from partition
read_super_blocks(source, &fs_info);
if (img_opt.checksum_mode != CSM_NONE && img_opt.blocks_per_checksum == 0) {
const unsigned int buffer_capacity = opt.buffer_size > fs_info.block_size
? opt.buffer_size / fs_info.block_size : 1; // in blocks
img_opt.blocks_per_checksum = buffer_capacity;
}
log_mesg(1, 0, 0, debug, "%u blocks per checksum\n", img_opt.blocks_per_checksum);
check_mem_size(fs_info, img_opt, opt);
/// alloc a memory to store bitmap
bitmap = pc_alloc_bitmap(fs_info.totalblock);
if (bitmap == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, not enough memory\n", __func__, __LINE__);
}
log_mesg(2, 0, 0, debug, "initial main bitmap pointer %p\n", bitmap);
log_mesg(1, 0, 0, debug, "Initial image hdr - read bitmap table\n");
/// read and check bitmap from partition
log_mesg(0, 0, 1, debug, "Calculating bitmap... Please wait... \n");
read_bitmap(source, fs_info, bitmap, pui);
update_used_blocks_count(&fs_info, bitmap);
if (opt.check) {
unsigned long long needed_space = 0;
needed_space += sizeof(image_head) + sizeof(file_system_info) + sizeof(image_options);
needed_space += get_bitmap_size_on_disk(&fs_info, &img_opt, &opt);
needed_space += cnv_blocks_to_bytes(0, fs_info.usedblocks, fs_info.block_size, &img_opt);
check_free_space(&dfw, needed_space);
}
log_mesg(2, 0, 0, debug, "check main bitmap pointer %p\n", bitmap);
log_mesg(1, 0, 0, debug, "Writing super block and bitmap...\n");
write_image_desc(&dfw, fs_info, img_opt, &opt);
write_image_bitmap(&dfw, fs_info, img_opt, bitmap, &opt);
log_mesg(0, 0, 1, debug, "done!\n");
} else if (opt.restore) {
image_head_v2 img_head;
log_mesg(1, 0, 0, debug, "restore image hdr - get information from image file\n");
log_mesg(1, 0, 1, debug, "Reading Super Block\n");
/// get image information from image file
load_image_desc(&dfr, &opt, &img_head, &fs_info, &img_opt);
cs_size = img_opt.checksum_size;
cs_reseed = img_opt.reseed_checksum;
check_mem_size(fs_info, img_opt, opt);
/// alloc a memory to restore bitmap
bitmap = pc_alloc_bitmap(fs_info.totalblock);
if (bitmap == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, not enough memory\n", __func__, __LINE__);
}
log_mesg(2, 0, 0, debug, "initial main bitmap pointer %p\n", bitmap);
log_mesg(1, 0, 0, debug, "Initial image hdr - read bitmap table\n");
/// read and check bitmap from image file
log_mesg(0, 0, 1, debug, "Calculating bitmap... Please wait...\n");
load_image_bitmap(&dfr, opt, fs_info, img_opt, bitmap);
#ifndef CHKIMG
/// check the dest partition size.
if (opt.restore_raw_file)
check_free_space(&dfw, fs_info.device_size);
else if (opt.check)
check_size(&dfw, fs_info.device_size);
#endif
log_mesg(2, 0, 0, debug, "check main bitmap pointer %p\n", bitmap);
log_mesg(0, 0, 1, debug, "done!\n");
} else if (opt.dd || opt.domain) {
log_mesg(1, 0, 0, debug, "Initiate image options - version %s\n", IMAGE_VERSION_CURRENT);
img_opt.checksum_mode = opt.checksum_mode;
img_opt.checksum_size = get_checksum_size(opt.checksum_mode, opt.debug);
img_opt.blocks_per_checksum = opt.blocks_per_checksum;
img_opt.reseed_checksum = opt.reseed_checksum;
log_mesg(1, 0, 0, debug, "Initial image hdr - get Super Block from partition\n");
log_mesg(1, 0, 1, debug, "Reading Super Block\n");
/// get Super Block information from partition
read_super_blocks(source, &fs_info);
check_mem_size(fs_info, img_opt, opt);
/// alloc a memory to restore bitmap
bitmap = pc_alloc_bitmap(fs_info.totalblock);
if (bitmap == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, not enough memory\n", __func__, __LINE__);
}
log_mesg(2, 0, 0, debug, "initial main bitmap pointer %p\n", bitmap);
log_mesg(1, 0, 0, debug, "Initial image hdr - read bitmap table\n");
/// read and check bitmap from partition
log_mesg(0, 0, 1, debug, "Calculating bitmap... Please wait... ");
read_bitmap(source, fs_info, bitmap, pui);
/// check the dest partition size.
if (opt.dd && opt.check) {
check_size(&dfw, fs_info.device_size);
}
log_mesg(2, 0, 0, debug, "check main bitmap pointer %p\n", bitmap);
log_mesg(0, 0, 1, debug, "done!\n");
} else if (opt.ddd){
if (dfr != 0)
read_super_blocks(source, &fs_info);
else
read_super_blocks(target, &fs_info);
img_opt.checksum_mode = opt.checksum_mode;
img_opt.checksum_size = get_checksum_size(opt.checksum_mode, opt.debug);
img_opt.blocks_per_checksum = opt.blocks_per_checksum;
check_mem_size(fs_info, img_opt, opt);
/// alloc a memory to restore bitmap
bitmap = pc_alloc_bitmap(fs_info.totalblock);
if (bitmap == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, not enough memory\n", __func__, __LINE__);
}
log_mesg(2, 0, 0, debug, "initial main bitmap pointer %p\n", bitmap);
log_mesg(1, 0, 0, debug, "Initial image hdr - read bitmap table\n");
/// read and check bitmap from partition
log_mesg(0, 0, 1, debug, "Calculating bitmap... Please wait... ");
read_bitmap(source, fs_info, bitmap, pui);
/// check the dest partition size.
if (opt.check) {
struct stat target_stat;
if ((stat(opt.target, &target_stat) != -1) && (strcmp(opt.target, "-") != 0)) {
if (S_ISBLK(target_stat.st_mode))
check_size(&dfw, fs_info.device_size);
else {
unsigned long long needed_space = 0;
needed_space += sizeof(image_head) + sizeof(file_system_info) + sizeof(image_options);
needed_space += get_bitmap_size_on_disk(&fs_info, &img_opt, &opt);
needed_space += cnv_blocks_to_bytes(0, fs_info.usedblocks, fs_info.block_size, &img_opt);
check_free_space(&dfw, needed_space);
}
}
}
log_mesg(2, 0, 0, debug, "check main bitmap pointer %p\n", bitmap);
log_mesg(0, 0, 1, debug, "done!\n");
}
log_mesg(1, 0, 0, debug, "print image information\n");
/// print option to log file
if (debug)
print_opt(opt);
print_file_system_info(fs_info, opt);
/**
* initial progress bar
*/
start = 0; /// start number of progress bar
stop = (fs_info.usedblocks); /// get the end of progress number, only used block
log_mesg(1, 0, 0, debug, "Initial Progress bar\n");
/// Initial progress bar
if (opt.no_block_detail)
flag = NO_BLOCK_DETAIL;
else
flag = IO;
progress_init(&prog, start, stop, fs_info.totalblock, flag, fs_info.block_size);
copied = 0; /// initial number is 0
/**
* thread to print progress
*/
pres = pthread_create(&prog_thread, NULL, thread_update_pui, NULL);
if(pres)
log_mesg(0, 1, 1, debug, "%s, %i, thread create error\n", __func__, __LINE__);
/**
* start read and write data between source and destination
*/
if (opt.clone) {
const unsigned long long blocks_total = fs_info.totalblock;
const unsigned int block_size = fs_info.block_size;
const unsigned int buffer_capacity = opt.buffer_size > block_size ? opt.buffer_size / block_size : 1; // in blocks
unsigned char checksum[cs_size];
unsigned int blocks_in_cs, blocks_per_cs, write_size;
char *read_buffer, *write_buffer;
blocks_per_cs = img_opt.blocks_per_checksum;
log_mesg(1, 0, 0, debug, "#\nBuffer capacity = %u, Blocks per cs = %u\n#\n", buffer_capacity, blocks_per_cs);
write_size = cnv_blocks_to_bytes(0, buffer_capacity, block_size, &img_opt);
read_buffer = (char*)malloc(buffer_capacity * block_size);
write_buffer = (char*)malloc(write_size + cs_size);
if (read_buffer == NULL || write_buffer == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, not enough memory\n", __func__, __LINE__);
}
/// read data from the first block
if (lseek(dfr, 0, SEEK_SET) == (off_t)-1)
log_mesg(0, 1, 1, debug, "source seek ERROR:%s\n", strerror(errno));
log_mesg(0, 0, 0, debug, "Total block %llu\n", blocks_total);
/// start clone partition to image file
log_mesg(1, 0, 0, debug, "start backup data...\n");
blocks_in_cs = 0;
init_checksum(img_opt.checksum_mode, checksum, debug);
block_id = 0;
do {
/// scan bitmap
unsigned long long i, blocks_skip, blocks_read;
unsigned int cs_added = 0, write_offset = 0;
off_t offset;
/// skip unused blocks
for (blocks_skip = 0;
block_id + blocks_skip < blocks_total &&
!pc_test_bit(block_id + blocks_skip, bitmap);
blocks_skip++);
if (block_id + blocks_skip == blocks_total)
break;
if (blocks_skip)
block_id += blocks_skip;
/// read blocks
for (blocks_read = 0;
block_id + blocks_read < blocks_total && blocks_read < buffer_capacity &&
pc_test_bit(block_id + blocks_read, bitmap);
++blocks_read);
if (!blocks_read)
break;
offset = (off_t)(block_id * block_size);
if (lseek(dfr, offset, SEEK_SET) == (off_t)-1)
log_mesg(0, 1, 1, debug, "source seek ERROR:%s\n", strerror(errno));
r_size = read_all(&dfr, read_buffer, blocks_read * block_size, &opt);
if (r_size != (int)(blocks_read * block_size)) {
if ((r_size == -1) && (errno == EIO)) {
if (opt.rescue) {
memset(read_buffer, 0, blocks_read * block_size);
for (r_size = 0; r_size < blocks_read * block_size; r_size += PART_SECTOR_SIZE)
rescue_sector(&dfr, offset + r_size, read_buffer + r_size, &opt);
} else
log_mesg(0, 1, 1, debug, "%s", bad_sectors_warning_msg);
} else
log_mesg(0, 1, 1, debug, "read error: %s\n", strerror(errno));
}
/// calculate checksum
log_mesg(2, 0, 0, debug, "blocks_read = %i\n", blocks_read);
for (i = 0; i < blocks_read; ++i) {
memcpy(write_buffer + write_offset,
read_buffer + i * block_size, block_size);
write_offset += block_size;
update_checksum(checksum, read_buffer + i * block_size, block_size);
if (blocks_per_cs > 0 && ++blocks_in_cs == blocks_per_cs) {
log_mesg(3, 0, 0, debug, "CRC = %x%x%x%x \n", checksum[0], checksum[1], checksum[2], checksum[3]);
memcpy(write_buffer + write_offset, checksum, cs_size);
++cs_added;
write_offset += cs_size;
blocks_in_cs = 0;
if (cs_reseed)
init_checksum(img_opt.checksum_mode, checksum, debug);
}
}
/// write buffer to target
w_size = write_all(&dfw, write_buffer, write_offset, &opt);
if (w_size != write_offset)
log_mesg(0, 1, 1, debug, "image write ERROR:%s\n", strerror(errno));
/// count copied block
copied += blocks_read;
log_mesg(2, 0, 0, debug, "copied = %lld\n", copied);
/// next block
block_id += blocks_read;
/// read or write error
if (r_size + cs_added * cs_size != w_size)
log_mesg(0, 1, 1, debug, "read(%i) and write(%i) different\n", r_size, w_size);
} while (1);
if (blocks_in_cs > 0) {
// Write the checksum for the latest blocks
log_mesg(1, 0, 0, debug, "Write the checksum for the latest blocks. size = %i\n", cs_size);
log_mesg(3, 0, 0, debug, "CRC = %x%x%x%x \n", checksum[0], checksum[1], checksum[2], checksum[3]);
w_size = write_all(&dfw, (char*)checksum, cs_size, &opt);
if (w_size != cs_size)
log_mesg(0, 1, 1, debug, "image write ERROR:%s\n", strerror(errno));
}
free(write_buffer);
free(read_buffer);
// check only the size when the image does not contains checksums and does not
// comes from a pipe
} else if (opt.chkimg && img_opt.checksum_mode == CSM_NONE
&& strcmp(opt.source, "-") != 0) {
unsigned long long total_offset = (fs_info.usedblocks - 1) * fs_info.block_size;
char last_block[fs_info.block_size];
off_t partial_offset = INT32_MAX;
while (total_offset) {
if (partial_offset > total_offset)
partial_offset = total_offset;
if (lseek(dfr, partial_offset, SEEK_CUR) == (off_t)-1)
log_mesg(0, 1, 1, debug, "source seek ERROR: %s\n", strerror(errno));
total_offset -= partial_offset;
}
if (read_all(&dfr, last_block, fs_info.block_size, &opt) != fs_info.block_size)
log_mesg(0, 1, 1, debug, "ERROR: source image too short\n");
} else if (opt.restore) {
const unsigned long long blocks_total = fs_info.totalblock;
const unsigned int block_size = fs_info.block_size;
const unsigned int buffer_capacity = opt.buffer_size > block_size ? opt.buffer_size / block_size : 1; // in blocks
const unsigned int blocks_per_cs = img_opt.blocks_per_checksum;
unsigned long long blocks_used = fs_info.usedblocks;
unsigned int blocks_in_cs, buffer_size, read_offset;
unsigned char checksum[cs_size];
char *read_buffer, *write_buffer;
unsigned long long blocks_used_fix = 0, test_block = 0;
log_mesg(1, 0, 0, debug, "#\nBuffer capacity = %u, Blocks per cs = %u\n#\n", buffer_capacity, blocks_per_cs);
// fix some super block record incorrect
for (test_block = 0; test_block < blocks_total; ++test_block)
if (pc_test_bit(test_block, bitmap))
blocks_used_fix++;
if (blocks_used_fix != blocks_used) {
blocks_used = blocks_used_fix;
log_mesg(1, 0, 0, debug, "info: fixed used blocks count\n");
}
buffer_size = cnv_blocks_to_bytes(0, buffer_capacity, block_size, &img_opt);
if (img_opt.image_version != 0x0001)
read_buffer = (char*)malloc(buffer_size);
else {
// Allocate more memory in case the image is affected by the 64 bits bug
read_buffer = (char*)malloc(buffer_size + buffer_capacity * cs_size);
}
write_buffer = (char*)malloc(buffer_capacity * block_size);
if (read_buffer == NULL || write_buffer == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, not enough memory\n", __func__, __LINE__);
}
#ifndef CHKIMG
/// seek to the first
if (lseek(dfw, opt.offset, SEEK_SET) == (off_t)-1)
log_mesg(0, 1, 1, debug, "target seek ERROR:%s\n", strerror(errno));
#endif
/// start restore image file to partition
log_mesg(1, 0, 0, debug, "start restore data...\n");
blocks_in_cs = 0;
if (!opt.ignore_crc)
init_checksum(img_opt.checksum_mode, checksum, debug);
block_id = 0;
do {
unsigned int i;
unsigned long long blocks_written, bytes_skip;
unsigned int read_size;
// max chunk to read using one read(2) syscall
int blocks_read = copied + buffer_capacity < blocks_used ?
buffer_capacity : blocks_used - copied;
if (!blocks_read)
break;
log_mesg(1, 0, 0, debug, "blocks_read = %d and copied = %lld\n", blocks_read, copied);
read_size = cnv_blocks_to_bytes(copied, blocks_read, block_size, &img_opt);
// increase read_size to make room for the oversized checksum
if (blocks_per_cs && blocks_read < buffer_capacity &&
(blocks_read % blocks_per_cs) && (blocks_used % blocks_per_cs)) {
/// it is the last read and there is a partial chunk at the end
log_mesg(1, 0, 0, debug, "# PARTIAL CHUNK\n");
read_size += cs_size;
}
// read chunk from image
log_mesg(1, 0, 0, debug, "read more: ");
r_size = read_all(&dfr, read_buffer, read_size, &opt);
if (r_size != read_size)
log_mesg(0, 1, 1, debug, "read ERROR:%s\n", strerror(errno));
// read buffer is the follows:
// <blocks_per_cs><cs1><blocks_per_cs><cs2>...
// write buffer should be the following:
// <block1><block2>...
read_offset = 0;
for (i = 0; i < blocks_read; ++i) {
memcpy(write_buffer + i * block_size,
read_buffer + read_offset, block_size);
if (opt.ignore_crc) {
read_offset += block_size;
if (++blocks_in_cs == blocks_per_cs)
read_offset += cs_size;
continue;
}
update_checksum(checksum, read_buffer + read_offset, block_size);
if (++blocks_in_cs == blocks_per_cs) {
unsigned char checksum_orig[cs_size];
memcpy(checksum_orig, read_buffer + read_offset + block_size, cs_size);
log_mesg(3, 0, 0, debug, "CRC = %x%x%x%x \n", checksum[0], checksum[1], checksum[2], checksum[3]);
log_mesg(3, 0, 0, debug, "CRC.orig = %x%x%x%x \n", checksum_orig[0], checksum_orig[1], checksum_orig[2], checksum_orig[3]);
if (memcmp(read_buffer + read_offset + block_size, checksum, cs_size)) {
log_mesg(0, 1, 1, debug, "CRC error, block_id=%llu...\n ", block_id + i);
}
read_offset += cs_size;
blocks_in_cs = 0;
if (cs_reseed)
init_checksum(img_opt.checksum_mode, checksum, debug);
}
read_offset += block_size;
}
if (blocks_in_cs && blocks_per_cs && blocks_read < buffer_capacity &&
(blocks_read % blocks_per_cs)) {
log_mesg(1, 0, 0, debug, "check latest chunk's checksum covering %u blocks\n", blocks_in_cs);
if (memcmp(read_buffer + read_offset, checksum, cs_size)){
unsigned char checksum_orig[cs_size];
memcpy(checksum_orig, read_buffer + read_offset, cs_size);
log_mesg(1, 0, 0, debug, "CRC = %x%x%x%x \n", checksum[0], checksum[1], checksum[2], checksum[3]);
log_mesg(1, 0, 0, debug, "CRC.orig = %x%x%x%x \n", checksum_orig[0], checksum_orig[1], checksum_orig[2], checksum_orig[3]);
log_mesg(0, 1, 1, debug, "CRC error, block_id=%llu...\n ", block_id + i);
}
}
blocks_written = 0;
do {
int blocks_write;
/// count bytes to skip
for (bytes_skip = 0;
block_id < blocks_total &&
!pc_test_bit(block_id, bitmap);
block_id++, bytes_skip += block_size);
#ifndef CHKIMG
/// skip empty blocks
if (bytes_skip > 0 && lseek(dfw, (off_t)bytes_skip, SEEK_CUR) == (off_t)-1)
log_mesg(0, 1, 1, debug, "target seek ERROR:%s\n", strerror(errno));
#endif
/// blocks to write
for (blocks_write = 0;
block_id + blocks_write < blocks_total &&
blocks_written + blocks_write < blocks_read &&
pc_test_bit(block_id + blocks_write, bitmap);
blocks_write++);
#ifndef CHKIMG
// write blocks
if (blocks_write > 0) {
w_size = write_all(&dfw, write_buffer + blocks_written * block_size,
blocks_write * block_size, &opt);
if (w_size != blocks_write * block_size) {
if (!opt.skip_write_error)
log_mesg(0, 1, 1, debug, "write block %llu ERROR:%s\n", block_id + blocks_written, strerror(errno));
else
log_mesg(0, 0, 1, debug, "skip write block %llu error:%s\n", block_id + blocks_written, strerror(errno));
}
}
#endif
blocks_written += blocks_write;
block_id += blocks_write;
copied += blocks_write;
} while (blocks_written < blocks_read);
} while(1);
free(write_buffer);
free(read_buffer);
#ifndef CHKIMG
/// restore_raw_file option
if (opt.restore_raw_file && !pc_test_bit(blocks_total - 1, bitmap)) {
if (ftruncate(dfw, (off_t)(blocks_total * block_size)) == -1)
log_mesg(0, 0, 1, debug, "ftruncate ERROR:%s\n", strerror(errno));
}
#endif
} else if (opt.dd) {
char *buffer;
int block_size = fs_info.block_size;
unsigned long long blocks_total = fs_info.totalblock;
int buffer_capacity = block_size < opt.buffer_size ? opt.buffer_size / block_size : 1;
buffer = (char*)malloc(buffer_capacity * block_size);
if (buffer == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, not enough memory\n", __func__, __LINE__);
}
block_id = 0;
if (lseek(dfr, 0, SEEK_SET) == (off_t)-1)
log_mesg(0, 1, 1, debug, "source seek ERROR:%d\n", strerror(errno));
log_mesg(0, 0, 0, debug, "Total block %llu\n", blocks_total);
/// start clone partition to partition
log_mesg(1, 0, 0, debug, "start backup data device-to-device...\n");
do {
/// scan bitmap
unsigned long long blocks_skip, blocks_read;
off_t offset;
/// skip unused blocks
for (blocks_skip = 0;
block_id + blocks_skip < blocks_total &&
!pc_test_bit(block_id + blocks_skip, bitmap);
blocks_skip++);
if (block_id + blocks_skip == blocks_total)
break;
if (blocks_skip)
block_id += blocks_skip;
/// read chunk from source
for (blocks_read = 0;
block_id + blocks_read < blocks_total && blocks_read < buffer_capacity &&
pc_test_bit(block_id + blocks_read, bitmap);
++blocks_read);
if (!blocks_read)
break;
offset = (off_t)(block_id * block_size);
if (lseek(dfr, offset, SEEK_SET) == (off_t)-1)
log_mesg(0, 1, 1, debug, "source seek ERROR:%s\n", strerror(errno));
if (lseek(dfw, offset + opt.offset, SEEK_SET) == (off_t)-1)
log_mesg(0, 1, 1, debug, "target seek ERROR:%s\n", strerror(errno));
r_size = read_all(&dfr, buffer, blocks_read * block_size, &opt);
if (r_size != (int)(blocks_read * block_size)) {
if ((r_size == -1) && (errno == EIO)) {
if (opt.rescue) {
memset(buffer, 0, blocks_read * block_size);
for (r_size = 0; r_size < blocks_read * block_size; r_size += PART_SECTOR_SIZE)
rescue_sector(&dfr, offset + r_size, buffer + r_size, &opt);
} else
log_mesg(0, 1, 1, debug, "%s", bad_sectors_warning_msg);
} else
log_mesg(0, 1, 1, debug, "source read ERROR %s\n", strerror(errno));
}
/// write buffer to target
w_size = write_all(&dfw, buffer, blocks_read * block_size, &opt);
if (w_size != (int)(blocks_read * block_size)) {
if (opt.skip_write_error)
log_mesg(0, 0, 1, debug, "skip write block %lli error:%s\n", block_id, strerror(errno));
else
log_mesg(0, 1, 1, debug, "write block %lli ERROR:%s\n", block_id, strerror(errno));
}
/// count copied block
copied += blocks_read;
/// next block
block_id += blocks_read;
/// read or write error
if (r_size != w_size) {
if (opt.skip_write_error)
log_mesg(0, 0, 1, debug, "read and write different\n");
else
log_mesg(0, 1, 1, debug, "read and write different\n");
}
} while (1);
free(buffer);
/// restore_raw_file option
if (opt.restore_raw_file && !pc_test_bit(blocks_total - 1, bitmap)) {
if (ftruncate(dfw, (off_t)(blocks_total * block_size)) == -1)
log_mesg(0, 0, 1, debug, "ftruncate ERROR:%s\n", strerror(errno));
}
} else if (opt.domain) {
int cmp, nx_current = 0;
unsigned long long next_block_id = 0;
log_mesg(0, 0, 0, debug, "Total block %i\n", fs_info.totalblock);
log_mesg(1, 0, 0, debug, "start writing domain log...\n");
// write domain log comment and status line
dprintf(dfw, "# Domain logfile created by %s v%s\n", get_exec_name(), VERSION);
dprintf(dfw, "# Source: %s\n", opt.source);
dprintf(dfw, "# Offset: 0x%08llX\n", opt.offset_domain);
dprintf(dfw, "# current_pos current_status\n");
dprintf(dfw, "0x%08llX ?\n", opt.offset_domain + (fs_info.totalblock * fs_info.block_size));
dprintf(dfw, "# pos size status\n");
// start logging the used/unused areas
cmp = pc_test_bit(0, bitmap);
for (block_id = 0; block_id <= fs_info.totalblock; block_id++) {
if (block_id < fs_info.totalblock) {
nx_current = pc_test_bit(block_id, bitmap);
if (nx_current)
copied++;
} else
nx_current = -1;
if (nx_current != cmp) {
dprintf(dfw, "0x%08llX 0x%08llX %c\n",
opt.offset_domain + (next_block_id * fs_info.block_size),
(block_id - next_block_id) * fs_info.block_size,
cmp ? '+' : '?');
next_block_id = block_id;
cmp = nx_current;
}
// don't bother updating progress
} /// end of for
} else if (opt.ddd) {
char *buffer;
int block_size = fs_info.block_size;
unsigned long long blocks_total = fs_info.totalblock;
int blocks_in_buffer = block_size < opt.buffer_size ? opt.buffer_size / block_size : 1;
buffer = (char*)malloc(blocks_in_buffer * block_size);
if (buffer == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, not enough memory\n", __func__, __LINE__);
}
block_id = 0;
log_mesg(0, 0, 0, debug, "Total block %llu\n", blocks_total);
/// start clone partition to partition
log_mesg(1, 0, 0, debug, "start backup data device-to-device...\n");
do {
/// scan bitmap
unsigned long long blocks_read;
/// read chunk from source
for (blocks_read = 0;
block_id + blocks_read < blocks_total && blocks_read < blocks_in_buffer &&
pc_test_bit(block_id + blocks_read, bitmap);
blocks_read++);
if (!blocks_read)
break;
r_size = read_all(&dfr, buffer, blocks_read * block_size, &opt);
if (r_size != (int)(blocks_read * block_size)) {
if ((r_size == -1) && (errno == EIO)) {
if (opt.rescue) {
memset(buffer, 0, blocks_read * block_size);
for (r_size = 0; r_size < blocks_read * block_size; r_size += PART_SECTOR_SIZE)
rescue_sector(&dfr, r_size, buffer + r_size, &opt);
} else
log_mesg(0, 1, 1, debug, "%s", bad_sectors_warning_msg);
} else if (r_size == 0){ // done for ddd
/// write buffer to target
w_size = write_all(&dfw, buffer, rescue_write_size, &opt);
break;
} else
log_mesg(0, 1, 1, debug, "source read ERROR %s\n", strerror(errno));
}
/// write buffer to target
w_size = write_all(&dfw, buffer, blocks_read * block_size, &opt);
if (w_size != (int)(blocks_read * block_size)) {
if (opt.skip_write_error)
log_mesg(0, 0, 1, debug, "skip write block %lli error:%s\n", block_id, strerror(errno));
else
log_mesg(0, 1, 1, debug, "write block %lli ERROR:%s\n", block_id, strerror(errno));
}
/// count copied block
copied += blocks_read;
/// next block
block_id += blocks_read;
/// read or write error
if (r_size != w_size) {
if (opt.skip_write_error)
log_mesg(0, 0, 1, debug, "read and write different\n");
else
log_mesg(0, 1, 1, debug, "read and write different\n");
}
} while (1);
free(buffer);
/// restore_raw_file option
if (opt.restore_raw_file && !pc_test_bit(blocks_total - 1, bitmap)) {
if (ftruncate(dfw, (off_t)(blocks_total * block_size)) == -1)
log_mesg(0, 0, 1, debug, "ftruncate ERROR:%s\n", strerror(errno));
}
}
done = 1;
pres = pthread_join(prog_thread, &p_result);
if(pres)
log_mesg(0, 1, 1, debug, "%s, %i, thread join error\n", __func__, __LINE__);
update_pui(&prog, copied, block_id, done);
#ifndef CHKIMG
sync_data(dfw, &opt);
#endif
print_finish_info(opt);
/// close source
close(dfr);
/// close target
if (dfw != -1)
close(dfw);
/// free bitmp
free(bitmap);
close_pui(pui);
#ifndef CHKIMG
fprintf(stderr, "Cloned successfully.\n");
#else
printf("Checked successfully.\n");
#endif
if (opt.debug)
close_log();
#ifdef MEMTRACE
muntrace();
#endif
return 0; /// finish
}
/**
* main functiom - for colne or restore data
*/
int main(int argc, char **argv) {
#ifdef MEMTRACE
setenv("MALLOC_TRACE", "partclone_mtrace.log", 1);
mtrace();
#endif
char* source; /// source data
char* target; /// target data
char* buffer; /// buffer data for malloc used
char* buffer2; /// buffer data for malloc used
int dfr, dfw; /// file descriptor for source and target
int r_size, w_size; /// read and write size
//unsigned long long block_id, copied = 0; /// block_id is every block in partition
/// copied is copied block count
off_t offset = 0, sf = 0; /// seek postition, lseek result
int start, stop; /// start, range, stop number for progress bar
unsigned long long total_write = 0; /// the copied size
unsigned long long needed_size = 0; /// the copied size
unsigned long long needed_mem = 0; /// the copied size
char bitmagic[8] = "BiTmAgIc";// only for check postition
char bitmagic_r[8]="00000000";/// read magic string from image
int cmp; /// compare magic string
unsigned long *bitmap; /// the point for bitmap data
int debug = 0; /// debug or not
unsigned long crc = 0xffffffffL; /// CRC32 check code for writint to image
unsigned long crc_ck = 0xffffffffL; /// CRC32 check code for checking
unsigned long crc_ck2 = 0xffffffffL; /// CRC32 check code for checking
int c_size; /// CRC32 code size
int n_crc_size = CRC_SIZE;
char* crc_buffer; /// buffer data for malloc crc code
//int done = 0;
int s_count = 0;
int rescue_num = 0;
unsigned long long rescue_pos = 0;
unsigned long long main_pos = 0;
int tui = 0; /// text user interface
int pui = 0; /// progress mode(default text)
int next=1,next_int=1,next_max_count=7,next_count=7,i;
unsigned long long next_block_id;
char* cache_buffer;
int nx_current=0;
char bbuffer[4096];
int flag;
int pres;
pthread_t prog_thread;
void *p_result;
char *bad_sectors_warning_msg =
"*************************************************************************\n"
"* WARNING: The disk has bad sector. This means physical damage on the *\n"
"* disk surface caused by deterioration, manufacturing faults or other *\n"
"* reason. The reliability of the disk may stay stable or degrade fast. *\n"
"* Use the --rescue option to efficiently save as much data as possible! *\n"
"*************************************************************************\n";
image_head image_hdr; /// image_head structure defined in partclone.h
memset(&image_hdr, 0, sizeof(image_hdr));
/**
* get option and assign to opt structure
* check parameter and read from argv
*/
parse_options(argc, argv, &opt);
/**
* if "-d / --debug" given
* open debug file in "/var/log/partclone.log" for log message
*/
memset(&fs_opt, 0, sizeof(fs_cmd_opt));
debug = opt.debug;
fs_opt.debug = debug;
fs_opt.ignore_fschk = opt.ignore_fschk;
next_max_count = opt.max_block_cache-1;
next_count = opt.max_block_cache-1;
//if(opt.debug)
open_log(opt.logfile);
/**
* using Text User Interface
*/
if (opt.ncurses) {
pui = NCURSES;
log_mesg(1, 0, 0, debug, "Using Ncurses User Interface mode.\n");
} else
pui = TEXT;
tui = open_pui(pui, opt.fresh);
if ((opt.ncurses) && (tui == 0)) {
opt.ncurses = 0;
log_mesg(1, 0, 0, debug, "Open Ncurses User Interface Error.\n");
}
/// print partclone info
print_partclone_info(opt);
if (geteuid() != 0)
log_mesg(0, 1, 1, debug, "You are not logged as root. You may have \"access denied\" errors when working.\n");
else
log_mesg(1, 0, 0, debug, "UID is root.\n");
/// ignore crc check
if(opt.ignore_crc)
log_mesg(1, 0, 1, debug, "Ignore CRC error\n");
/**
* open source and target
* clone mode, source is device and target is image file/stdout
* restore mode, source is image file/stdin and target is device
* dd mode, source is device and target is device !!not complete
*/
#ifdef _FILE_OFFSET_BITS
log_mesg(1, 0, 0, debug, "enable _FILE_OFFSET_BITS %i\n", _FILE_OFFSET_BITS);
#endif
source = opt.source;
target = opt.target;
dfr = open_source(source, &opt);
if (dfr == -1) {
log_mesg(0, 1, 1, debug, "Erro EXIT.\n");
}
dfw = open_target(target, &opt);
if (dfw == -1) {
log_mesg(0, 1, 1, debug, "Error Exit.\n");
}
/**
* get partition information like super block, image_head, bitmap
* from device or image file.
*/
if (opt.clone) {
log_mesg(1, 0, 0, debug, "Initial image hdr - get Super Block from partition\n");
log_mesg(0, 0, 1, debug, "Reading Super Block\n");
/// get Super Block information from partition
initial_image_hdr(source, &image_hdr);
/// check memory size
if (check_mem_size(image_hdr, opt, &needed_mem) == -1)
log_mesg(0, 1, 1, debug, "Ther is no enough free memory, partclone suggests you should have %lld bytes memory\n", needed_mem);
strncpy(image_hdr.version, IMAGE_VERSION, VERSION_SIZE);
/// alloc a memory to restore bitmap
bitmap = (unsigned long*)calloc(sizeof(unsigned long), LONGS(image_hdr.totalblock));
if(bitmap == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, ERROR:%s", __func__, __LINE__, strerror(errno));
}
log_mesg(2, 0, 0, debug, "initial main bitmap pointer %i\n", bitmap);
log_mesg(1, 0, 0, debug, "Initial image hdr - read bitmap table\n");
/// read and check bitmap from partition
log_mesg(0, 0, 1, debug, "Calculating bitmap... Please wait... ");
readbitmap(source, image_hdr, bitmap, pui);
needed_size = (unsigned long long)(((image_hdr.block_size+sizeof(unsigned long))*image_hdr.usedblocks)+sizeof(image_hdr)+sizeof(char)*image_hdr.totalblock);
if (opt.check)
check_free_space(&dfw, needed_size);
log_mesg(2, 0, 0, debug, "check main bitmap pointer %i\n", bitmap);
log_mesg(1, 0, 0, debug, "Writing super block and bitmap... ");
// write image_head to image file
w_size = write_all(&dfw, (char *)&image_hdr, sizeof(image_head), &opt);
if(w_size == -1)
log_mesg(0, 1, 1, debug, "write image_hdr to image error\n");
// write bitmap information to image file
for (i = 0; i < image_hdr.totalblock; i++) {
if (pc_test_bit(i, bitmap)) {
bbuffer[i % sizeof(bbuffer)] = 1;
} else {
bbuffer[i % sizeof(bbuffer)] = 0;
}
if (i % sizeof(bbuffer) == sizeof(bbuffer) - 1 || i == image_hdr.totalblock - 1) {
w_size = write_all(&dfw, bbuffer, 1 + (i % sizeof(bbuffer)), &opt);
if(w_size == -1)
log_mesg(0, 1, 1, debug, "write bitmap to image error\n");
}
}
log_mesg(0, 0, 1, debug, "done!\n");
} else if (opt.restore) {
log_mesg(1, 0, 0, debug, "restore image hdr - get image_head from image file\n");
log_mesg(1, 0, 1, debug, "Reading Super Block\n");
/// get image information from image file
restore_image_hdr(&dfr, &opt, &image_hdr);
/// check memory size
if (check_mem_size(image_hdr, opt, &needed_mem) == -1)
log_mesg(0, 1, 1, debug, "Ther is no enough free memory, partclone suggests you should have %lld bytes memory\n", needed_mem);
/// alloc a memory to restore bitmap
bitmap = (unsigned long*)calloc(sizeof(unsigned long), LONGS(image_hdr.totalblock));
if(bitmap == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, ERROR:%s", __func__, __LINE__, strerror(errno));
}
/// check the image magic
if (memcmp(image_hdr.magic, IMAGE_MAGIC, IMAGE_MAGIC_SIZE) != 0)
log_mesg(0, 1, 1, debug, "This is not partclone image.\n");
/// check the file system
//if (strcmp(image_hdr.fs, FS) != 0)
// log_mesg(0, 1, 1, debug, "%s can't restore from the image which filesystem is %s not %s\n", argv[0], image_hdr.fs, FS);
log_mesg(2, 0, 0, debug, "initial main bitmap pointer %lli\n", bitmap);
log_mesg(1, 0, 0, debug, "Initial image hdr - read bitmap table\n");
/// read and check bitmap from image file
log_mesg(0, 0, 1, debug, "Calculating bitmap... Please wait... ");
get_image_bitmap(&dfr, opt, image_hdr, bitmap);
/// check the dest partition size.
if (opt.restore_row_file)
check_free_space(&dfw, image_hdr.device_size);
else if(opt.check)
check_size(&dfw, image_hdr.device_size);
log_mesg(2, 0, 0, debug, "check main bitmap pointer %i\n", bitmap);
log_mesg(0, 0, 1, debug, "done!\n");
} else if (opt.dd) {
log_mesg(1, 0, 0, debug, "Initial image hdr - get Super Block from partition\n");
log_mesg(1, 0, 1, debug, "Reading Super Block\n");
/// get Super Block information from partition
initial_image_hdr(source, &image_hdr);
/// check memory size
if (check_mem_size(image_hdr, opt, &needed_mem) == -1)
log_mesg(0, 1, 1, debug, "Ther is no enough free memory, partclone suggests you should have %lld bytes memory\n", needed_mem);
strncpy(image_hdr.version, IMAGE_VERSION, VERSION_SIZE);
/// alloc a memory to restore bitmap
bitmap = (unsigned long*)calloc(sizeof(unsigned long), LONGS(image_hdr.totalblock));
if(bitmap == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, ERROR:%s", __func__, __LINE__, strerror(errno));
}
log_mesg(2, 0, 0, debug, "initial main bitmap pointer %i\n", bitmap);
log_mesg(1, 0, 0, debug, "Initial image hdr - read bitmap table\n");
/// read and check bitmap from partition
log_mesg(0, 0, 1, debug, "Calculating bitmap... Please wait... ");
readbitmap(source, image_hdr, bitmap, pui);
/// check the dest partition size.
if(opt.check) {
check_size(&dfw, image_hdr.device_size);
}
log_mesg(2, 0, 0, debug, "check main bitmap pointer %i\n", bitmap);
log_mesg(0, 0, 1, debug, "done!\n");
} else if (opt.domain) {
log_mesg(1, 0, 0, debug, "Initial image hdr - get Super Block from partition\n");
log_mesg(1, 0, 1, debug, "Reading Super Block\n");
/// get Super Block information from partition
initial_image_hdr(source, &image_hdr);
/// check memory size
if (check_mem_size(image_hdr, opt, &needed_mem) == -1)
log_mesg(0, 1, 1, debug, "Ther is no enough free memory, partclone suggests you should have %lld bytes memory\n", needed_mem);
strncpy(image_hdr.version, IMAGE_VERSION, VERSION_SIZE);
/// alloc a memory to restore bitmap
bitmap = (unsigned long*)calloc(sizeof(unsigned long), LONGS(image_hdr.totalblock));
if(bitmap == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, ERROR:%s", __func__, __LINE__, strerror(errno));
}
log_mesg(2, 0, 0, debug, "initial main bitmap pointer %i\n", bitmap);
log_mesg(1, 0, 0, debug, "Initial image hdr - read bitmap table\n");
/// read and check bitmap from partition
log_mesg(0, 0, 1, debug, "Calculating bitmap... Please wait... ");
readbitmap(source, image_hdr, bitmap, pui);
log_mesg(2, 0, 0, debug, "check main bitmap pointer %i\n", bitmap);
log_mesg(0, 0, 1, debug, "done!\n");
}
log_mesg(1, 0, 0, debug, "print image_head\n");
/// print option to log file
if (debug)
print_opt(opt);
/// print image_head
print_image_hdr_info(image_hdr, opt);
/**
* initial progress bar
*/
//progress_bar prog; /// progress_bar structure defined in progress.h
start = 0; /// start number of progress bar
stop = (image_hdr.usedblocks); /// get the end of progress number, only used block
log_mesg(1, 0, 0, debug, "Initial Progress bar\n");
/// Initial progress bar
if (opt.no_block_detail)
flag = NO_BLOCK_DETAIL;
else
flag = IO;
progress_init(&prog, start, stop, image_hdr.totalblock, flag, image_hdr.block_size);
copied = 0; /// initial number is 0
/**
* thread to print progress
*/
pres = pthread_create(&prog_thread, NULL, thread_update_pui, NULL);
/**
* start read and write data between device and image file
*/
if (opt.clone) {
w_size = write_all(&dfw, bitmagic, 8, &opt); /// write a magic string
/// read data from the first block and log the offset
sf = lseek(dfr, 0, SEEK_SET);
log_mesg(1, 0, 0, debug, "seek %lli for reading data string\n",sf);
if (sf == (off_t)-1)
log_mesg(0, 1, 1, debug, "seek set %lli\n", sf);
buffer = (char*)malloc(image_hdr.block_size); ///alloc a memory to copy data
if(buffer == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, ERROR:%s", __func__, __LINE__, strerror(errno));
}
log_mesg(0, 0, 0, debug, "Total block %i\n", image_hdr.totalblock);
/// start clone partition to image file
log_mesg(1, 0, 0, debug, "start backup data...\n");
for( block_id = 0; block_id < image_hdr.totalblock; block_id++ ) {
r_size = 0;
w_size = 0;
main_pos = lseek(dfr, 0, SEEK_CUR);
log_mesg(3, 0, 0, debug, "man pos = %lli\n", main_pos);
if (pc_test_bit(block_id, bitmap)) {
/// if the block is used
log_mesg(1, 0, 0, debug, "block_id=%lli, ",block_id);
log_mesg(2, 0, 0, debug, "bitmap=%i, ",pc_test_bit(block_id, bitmap));
offset = (off_t)(block_id * image_hdr.block_size);
#ifdef _FILE_OFFSET_BITS
sf = lseek(dfr, offset, SEEK_SET);
if (sf == -1)
log_mesg(0, 1, 1, debug, "source seek error = %lli, ",sf);
#endif
/// read data from source to buffer
memset(buffer, 0, image_hdr.block_size);
rescue_pos = lseek(dfr, 0, SEEK_CUR);
r_size = read_all(&dfr, buffer, image_hdr.block_size, &opt);
log_mesg(3, 0, 0, debug, "bs=%i and r=%i, ",image_hdr.block_size, r_size);
if (r_size != (int)image_hdr.block_size) {
if ((r_size == -1) && (errno == EIO)) {
if (opt.rescue) {
r_size = 0;
for (rescue_num = 0; rescue_num < image_hdr.block_size; rescue_num += SECTOR_SIZE) {
rescue_sector(&dfr, rescue_pos + rescue_num, buffer + rescue_num, &opt);
r_size+=SECTOR_SIZE;
}
} else
log_mesg(0, 1, 1, debug, "%s", bad_sectors_warning_msg);
} else
log_mesg(0, 1, 1, debug, "read error: %s(%i) \n", strerror(errno), errno);
}
/// write buffer to target
w_size = write_all(&dfw, buffer, image_hdr.block_size, &opt);
log_mesg(3, 0, 0, debug, "bs=%i and w=%i, ",image_hdr.block_size, w_size);
if (w_size != (int)image_hdr.block_size)
log_mesg(0, 1, 1, debug, "write error %i \n", w_size);
/// generate crc32 code and write it.
crc_buffer = (char*)malloc(CRC_SIZE); ///alloc a memory to copy data
if(crc_buffer == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, ERROR:%s", __func__, __LINE__, strerror(errno));
}
crc = crc32(crc, buffer, w_size);
memcpy(crc_buffer, &crc, CRC_SIZE);
c_size = write_all(&dfw, crc_buffer, CRC_SIZE, &opt);
/// free buffer
free(crc_buffer);
copied++; /// count copied block
total_write += (unsigned long long)(w_size); /// count copied size
log_mesg(3, 0, 0, debug, "total=%lli, ", total_write);
/// read or write error
if (r_size != w_size)
log_mesg(0, 1, 1, debug, "read(%i) and write(%i) different\n", r_size, w_size);
log_mesg(2, 0, 0, debug, "end\n");
} else {
#ifndef _FILE_OFFSET_BITS
/// if the block is not used, I just skip it.
log_mesg(2, 0, 0, debug, "block_id=%lli, ",block_id);
sf = lseek(dfr, image_hdr.block_size, SEEK_CUR);
log_mesg(2, 0, 0, debug, "skip seek=%lli, ",sf);
if (sf == (off_t)-1)
log_mesg(0, 1, 1, debug, "clone seek error %lli errno=%i\n", (long long)offset, (int)errno);
log_mesg(2, 0, 0, debug, "end\n");
#endif
}
} /// end of for
free(buffer);
} else if (opt.restore) {
/**
* read magic string from image file
* and check it.
*/
r_size = read_all(&dfr, bitmagic_r, 8, &opt); /// read a magic string
cmp = memcmp(bitmagic, bitmagic_r, 8);
if(cmp != 0)
log_mesg(0, 1, 1, debug, "bitmagic error %i\n", cmp);
/// seek to the first
sf = lseek(dfw, 0, SEEK_SET);
log_mesg(1, 0, 0, debug, "seek %lli for writing dtat string\n",sf);
if (sf == (off_t)-1)
log_mesg(0, 1, 1, debug, "seek set %lli\n", sf);
cache_buffer = (char*)malloc(image_hdr.block_size * (next_max_count+1));
if(cache_buffer == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, ERROR:%s", __func__, __LINE__, strerror(errno));
}
buffer = (char*)malloc(image_hdr.block_size); ///alloc a memory to copy data
if(buffer == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, ERROR:%s", __func__, __LINE__, strerror(errno));
}
/// start restore image file to partition
log_mesg(1, 0, 0, debug, "start restore data...\n");
for( block_id = 0; block_id < image_hdr.totalblock; block_id++ ) {
r_size = 0;
w_size = 0;
if (pc_test_bit(block_id, bitmap)) {
/// The block is used
log_mesg(1, 0, 0, debug, "block_id=%lli, ",block_id);
log_mesg(2, 0, 0, debug, "bitmap=%i, ",pc_test_bit(block_id, bitmap));
memset(buffer, 0, image_hdr.block_size);
r_size = read_all(&dfr, buffer, image_hdr.block_size, &opt);
log_mesg(3, 0, 0, debug, "bs=%i and r=%i, ",image_hdr.block_size, r_size);
if (r_size <0)
log_mesg(0, 1, 1, debug, "read errno = %i \n", errno);
/// read crc32 code and check it.
crc_ck = crc32(crc_ck, buffer, r_size);
crc_buffer = (char*)malloc(CRC_SIZE); ///alloc a memory to copy data
if(crc_buffer == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, ERROR:%s", __func__, __LINE__, strerror(errno));
}
c_size = read_all(&dfr, crc_buffer, CRC_SIZE, &opt);
if (c_size < CRC_SIZE)
log_mesg(0, 1, 1, debug, "read CRC error: %s, please check your image file. \n", strerror(errno));
memcpy(&crc, crc_buffer, CRC_SIZE);
/*FIX: 64bit image can't ignore crc error*/
if ((memcmp(&crc, &crc_ck, CRC_SIZE) != 0) && (!opt.ignore_crc)) {
log_mesg(1, 0, 0, debug, "CRC Check error. 64bit bug before v0.1.0 (Rev:250M), enlarge crc size and recheck again....\n ");
/// check again
buffer2 = (char*)malloc(image_hdr.block_size+CRC_SIZE); ///alloc a memory to copy data
if(buffer2 == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, ERROR:%s", __func__, __LINE__, strerror(errno));
}
memcpy(buffer2, buffer, image_hdr.block_size);
memcpy(buffer2+image_hdr.block_size, crc_buffer, CRC_SIZE);
memcpy(buffer, buffer2+CRC_SIZE, image_hdr.block_size);
crc_ck2 = crc32(crc_ck2, buffer, r_size);
c_size = read_all(&dfr, crc_buffer, CRC_SIZE, &opt);
if (c_size < CRC_SIZE)
log_mesg(0, 1, 1, debug, "read CRC error: %s, please check your image file. \n", strerror(errno));
memcpy(&crc, crc_buffer, CRC_SIZE);
if ((memcmp(&crc, &crc_ck2, CRC_SIZE) != 0 )&& (!opt.ignore_crc)) {
log_mesg(0, 1, 1, debug, "CRC error again at %i...\n ", sf);
} else {
crc_ck = crc_ck2;
}
free(buffer2);
} else {
crc_ck2 = crc_ck;
}
if(next != next_count) {
memset(cache_buffer, 0, image_hdr.block_size*next_max_count);
for (next_int = 1; next_int <= next_max_count; next_int++)
{
next_block_id = block_id+next_int;
if (pc_test_bit(next_block_id, bitmap)) {
next++;
} else {
next_count = next;
break;
}
next_count = next;
}
log_mesg(1, 0, 0, debug, "next = %i\n",next);
}
if ((next == next_count) &&(nx_current < next)) {
memcpy(cache_buffer+(image_hdr.block_size*nx_current), buffer, image_hdr.block_size);
w_size = 0;
nx_current++;
}
if ((next == next_count) && (nx_current == next)) {
#ifdef _FILE_OFFSET_BITS
offset = (off_t)((block_id-next+1) * image_hdr.block_size);
sf = lseek(dfw, offset, SEEK_SET);
if (sf == -1)
log_mesg(0, 1, 1, debug, "target seek error = %lli, ",sf);
#endif
/// write block from buffer to partition
w_size = write_all(&dfw, cache_buffer, (image_hdr.block_size*nx_current), &opt);
log_mesg(1, 0, 0, debug, "bs=%i and w=%i, ",(image_hdr.block_size*nx_current), w_size);
if (w_size != (int)image_hdr.block_size*nx_current)
log_mesg(0, 1, 1, debug, "write error %i \n", w_size);
next = 1;
next_count = next_max_count;
nx_current=0;
}
/// free buffer
free(crc_buffer);
copied++; /// count copied block
total_write += (unsigned long long) w_size; /// count copied size
/// read or write error
//if ((r_size != w_size) || (r_size != image_hdr.block_size))
// log_mesg(0, 1, 1, debug, "read and write different\n");
log_mesg(1, 0, 0, debug, "end\n");
} else {
/// for restore to row file, mount -o loop used.
if ((block_id == (image_hdr.totalblock-1)) && (opt.restore_row_file)) {
write_last_block(&dfw, image_hdr.block_size, block_id, &opt);
} else {
#ifndef _FILE_OFFSET_BITS
/// if the block is not used, I just skip it.
log_mesg(2, 0, 0, debug, "block_id=%lli, ",block_id);
sf = lseek(dfw, image_hdr.block_size, SEEK_CUR);
log_mesg(2, 0, 0, debug, "seek=%lli, ",sf);
if (sf == (off_t)-1)
log_mesg(0, 1, 1, debug, "seek error %lli errno=%i\n", (long long)offset, (int)errno);
log_mesg(2, 0, 0, debug, "end\n");
#endif
}
}
} // end of for
free(buffer);
} else if (opt.dd) {
sf = lseek(dfr, 0, SEEK_SET);
log_mesg(1, 0, 0, debug, "seek %lli for reading data string\n",sf);
if (sf == (off_t)-1)
log_mesg(0, 1, 1, debug, "seek set %lli\n", sf);
main_pos = lseek(dfr, 0, SEEK_CUR);
log_mesg(1, 0, 0, debug, "man pos = %lli\n", main_pos);
log_mesg(0, 0, 0, debug, "Total block %i\n", image_hdr.totalblock);
buffer = (char*)malloc(image_hdr.block_size); ///alloc a memory to copy data
if(buffer == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, ERROR:%s", __func__, __LINE__, strerror(errno));
}
/// start clone partition to image file
log_mesg(1, 0, 0, debug, "start backup data device-to-device...\n");
for( block_id = 0; block_id < image_hdr.totalblock; block_id++ ) {
r_size = 0;
w_size = 0;
if (pc_test_bit(block_id, bitmap)) {
/// if the block is used
log_mesg(1, 0, 0, debug, "block_id=%lli, ",block_id);
log_mesg(2, 0, 0, debug, "bitmap=%i, ",pc_test_bit(block_id, bitmap));
offset = (off_t)(block_id * image_hdr.block_size);
#ifdef _FILE_OFFSET_BITS
sf = lseek(dfr, offset, SEEK_SET);
if (sf == -1)
log_mesg(0, 1, 1, debug, "source seek error = %lli, ",sf);
sf = lseek(dfw, offset, SEEK_SET);
if (sf == -1)
log_mesg(0, 1, 1, debug, "target seek error = %lli, ",sf);
#endif
/// read data from source to buffer
memset(buffer, 0, image_hdr.block_size);
rescue_pos = lseek(dfr, 0, SEEK_CUR);
r_size = read_all(&dfr, buffer, image_hdr.block_size, &opt);
log_mesg(3, 0, 0, debug, "bs=%i and r=%i, ",image_hdr.block_size, r_size);
if (r_size != (int)image_hdr.block_size) {
if ((r_size == -1) && (errno == EIO)) {
if (opt.rescue) {
r_size = 0;
for (rescue_num = 0; rescue_num < image_hdr.block_size; rescue_num += SECTOR_SIZE) {
rescue_sector(&dfr, rescue_pos + rescue_num, buffer + rescue_num, &opt);
r_size+=SECTOR_SIZE;
}
} else
log_mesg(0, 1, 1, debug, "%s", bad_sectors_warning_msg);
} else
log_mesg(0, 1, 1, debug, "read error: %s(%i) \n", strerror(errno), errno);
}
/// write buffer to target
w_size = write_all(&dfw, buffer, image_hdr.block_size, &opt);
log_mesg(3, 0, 0, debug, "bs=%i and w=%i, ",image_hdr.block_size, w_size);
if (w_size != (int)image_hdr.block_size)
log_mesg(0, 1, 1, debug, "write error %i \n", w_size);
copied++; /// count copied block
total_write += (unsigned long long)(w_size); /// count copied size
log_mesg(2, 0, 0, debug, "total=%lli, ", total_write);
/// read or write error
if (r_size != w_size)
log_mesg(0, 1, 1, debug, "read and write different\n");
log_mesg(1, 0, 0, debug, "end\n");
} else {
#ifndef _FILE_OFFSET_BITS
/// if the block is not used, I just skip it.
log_mesg(2, 0, 0, debug, "block_id=%lli, ",block_id);
sf = lseek(dfr, image_hdr.block_size, SEEK_CUR);
log_mesg(2, 0, 0, debug, "skip source seek=%lli, ",sf);
sf = lseek(dfw, image_hdr.block_size, SEEK_CUR);
log_mesg(2, 0, 0, debug, "skip target seek=%lli, ",sf);
if (sf == (off_t)-1)
log_mesg(0, 1, 1, debug, "clone seek error %lli errno=%i\n", (long long)offset, (int)errno);
#endif
}
} /// end of for
free(buffer);
} else if (opt.domain) {
log_mesg(0, 0, 0, debug, "Total block %i\n", image_hdr.totalblock);
log_mesg(1, 0, 0, debug, "start writing domain log...\n");
// write domain log comment and status line
dprintf(dfw, "# Domain logfile created by %s v%s\n", EXECNAME, VERSION);
dprintf(dfw, "# Source: %s\n", opt.source);
dprintf(dfw, "# Offset: 0x%08llX\n", opt.offset_domain);
dprintf(dfw, "# current_pos current_status\n");
dprintf(dfw, "0x%08llX ?\n",
opt.offset_domain + (image_hdr.totalblock * image_hdr.block_size));
dprintf(dfw, "# pos size status\n");
// start logging the used/unused areas
next_block_id = 0;
cmp = pc_test_bit(0, bitmap);
for( block_id = 0; block_id <= image_hdr.totalblock; block_id++ ) {
if (block_id < image_hdr.totalblock) {
nx_current = pc_test_bit(block_id, bitmap);
if (nx_current == 1)
copied++;
} else
nx_current = -1;
if (nx_current != cmp) {
dprintf(dfw, "0x%08llX 0x%08llX %c\n",
opt.offset_domain + (next_block_id * image_hdr.block_size),
(block_id - next_block_id) * image_hdr.block_size,
cmp ? '+' : '?');
next_block_id = block_id;
cmp = nx_current;
}
// don't bother updating progress
} /// end of for
}
done = 1;
pres = pthread_join(prog_thread, &p_result);
update_pui(&prog, copied, block_id, done);
sync_data(dfw, &opt);
print_finish_info(opt);
close (dfr); /// close source
close (dfw); /// close target
free(bitmap); /// free bitmp
close_pui(pui);
printf("Cloned successfully.\n");
if(opt.debug)
close_log();
#ifdef MEMTRACE
muntrace();
#endif
return 0; /// finish
}