void bt_sighandler(int sig, siginfo_t *info,
void *secret) {
void *trace[16];
char **messages = (char **)NULL;
int i, trace_size = 0;
ucontext_t *uc = (ucontext_t *)secret;
/* Do something useful with siginfo_t */
if (sig == SIGSEGV)
printf("Got signal %d, faulty address is %p, "
"from %p\n", sig, info->si_addr,
uc->uc_mcontext.gregs[REG_EIP]);
else
printf("Got signal %d#92;\n", sig);
trace_size = backtrace(trace, 16);
/* overwrite sigaction with caller's address */
trace[1] = (void *) uc->uc_mcontext.gregs[REG_EIP];
messages = backtrace_symbols(trace, trace_size);
/* skip first stack frame (points here) */
printf("[bt] Execution path:#92;\n");
for (i=1; i<trace_size; ++i)
{
printf("[bt] %s#92;\n", messages[i]);
char syscom[256];
sprintf(syscom,"addr2line %p -e %s", trace[i] , get_exec_name() ); //last parameter is the name of this app
system(syscom);
}
exit(0);
}
static void TRACE__init(void)
{
char buffer_name[512];
get_exec_name(buffer_name, sizeof(buffer_name));
TRACE__register_buffer(buffer_name);
#ifdef ANDROID
pthread_key_create(&nesting_key, NULL);
pthread_key_create(&tid_cache_key, NULL);
pthread_key_create(&pid_cache_key, NULL);
#endif
}
int main(int argc, char *argv[])
{
get_exec_name(argv[0]);
get_options(argc, argv); /* may exit */
open_files(); /* may exit */
read_input_file(); /* may exit */
validate_input_file(); /* may exit */
generate_interrupt_vector_bitmap(); /* may exit */
generate_idt(); /* may exit */
close_files();
return 0;
}
/**
* 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
}
void parse_options(int argc, char **argv, cmd_opt* opt) {
#if CHKIMG
static const char *sopt = "-hvd::L:s:f:CFiBz:Nn:";
#elif RESTORE
static const char *sopt = "-hvd::L:o:O:s:f:CFINiqWBz:E:n:";
#elif DD
static const char *sopt = "-hvd::L:o:O:s:f:CFINiqWBz:E:n:";
#else
static const char *sopt = "-hvd::L:cbrDo:O:s:f:RCFINiqWBz:E:a:k:Kn:";
#endif
static const struct option lopt[] = {
// common options
{ "help", no_argument, NULL, 'h' },
{ "print_version", no_argument, NULL, 'v' },
{ "note", required_argument, NULL, 'n' },
{ "source", required_argument, NULL, 's' },
{ "debug", optional_argument, NULL, 'd' },
{ "logfile", required_argument, NULL, 'L' },
{ "UI-fresh", required_argument, NULL, 'f' },
{ "no_check", no_argument, NULL, 'C' },
{ "ignore_crc", no_argument, NULL, 'i' },
{ "force", no_argument, NULL, 'F' },
{ "no_block_detail", no_argument, NULL, 'B' },
{ "buffer_size", required_argument, NULL, 'z' },
// not RESTORE and not CHKIMG
#ifndef CHKIMG
#ifndef RESTORE
#ifndef DD
{ "clone", no_argument, NULL, 'c' },
{ "restore", no_argument, NULL, 'r' },
{ "dev-to-dev", no_argument, NULL, 'b' },
#endif
{ "domain", no_argument, NULL, 'D' },
{ "offset_domain", required_argument, NULL, OPT_OFFSET_DOMAIN },
{ "rescue", no_argument, NULL, 'R' },
{ "checksum-mode", required_argument, NULL, 'a' },
{ "blocks-per-checksum", required_argument, NULL, 'k' },
{ "no-reseed", no_argument, NULL, 'K' },
#endif
#endif
// not CHKIMG
#ifndef CHKIMG
{ "output", required_argument, NULL, 'o' },
{ "overwrite", required_argument, NULL, 'O' },
{ "restore_raw_file", no_argument, NULL, 'W' },
{ "skip_write_error", no_argument, NULL, 'w' },
{ "ignore_fschk", no_argument, NULL, 'I' },
{ "quiet", no_argument, NULL, 'q' },
{ "offset", required_argument, NULL, 'E' },
#endif
#ifdef HAVE_LIBNCURSESW
{ "ncurses", no_argument, NULL, 'N' },
#endif
{ NULL, 0, NULL, 0 }
};
save_program_name(argv[0]);
int c;
int mode = 0;
memset(opt, 0, sizeof(cmd_opt));
opt->debug = 0;
opt->offset = 0;
opt->rescue = 0;
opt->skip_write_error = 0;
opt->check = 1;
opt->ignore_crc = 0;
opt->quiet = 0;
opt->no_block_detail = 0;
opt->fresh = 2;
opt->logfile = "/var/log/partclone.log";
opt->buffer_size = DEFAULT_BUFFER_SIZE;
opt->checksum_mode = CSM_CRC32;
opt->reseed_checksum = 1;
opt->blocks_per_checksum = 0;
#ifdef DD
#ifndef RESTORE
#ifndef CHKIMG
opt->ddd++;
opt->checksum_mode = CSM_NONE;
mode=1;
#endif
#endif
#endif
#ifdef RESTORE
opt->restore++;
mode=1;
#endif
#ifdef CHKIMG
opt->restore++;
opt->chkimg++;
mode=1;
#endif
while ((c = getopt_long(argc, argv, sopt, lopt, NULL)) != -1) {
switch (c) {
case 'h':
case '?':
usage();
break;
case 'v':
print_version();
break;
case 'n':
strncpy(opt->note, optarg, NOTE_SIZE);
break;
case 's':
opt->source = optarg;
break;
case 'd':
if (optarg)
opt->debug = atol(optarg);
else
opt->debug = 1;
break;
case 'L':
opt->logfile = optarg;
break;
case 'f':
opt->fresh = atol(optarg);
break;
case 'C':
opt->check = 0;
break;
case 'i':
opt->ignore_crc = 1;
break;
case 'F':
opt->force++;
break;
case 'B':
opt->no_block_detail = 1;
break;
case 'z':
opt->buffer_size = atol(optarg);
break;
#ifndef CHKIMG
#ifndef RESTORE
#ifndef DD
case 'c':
opt->clone++;
mode=1;
break;
case 'r':
opt->restore++;
mode=1;
break;
case 'b':
opt->dd++;
mode=1;
break;
#endif
case 'D':
opt->domain++;
mode=1;
break;
case OPT_OFFSET_DOMAIN:
opt->offset_domain = strtoull(optarg, NULL, 0);
break;
case 'R':
opt->rescue++;
break;
case 'a':
opt->checksum_mode = convert_to_checksum_mode(atol(optarg));
break;
case 'k':
opt->blocks_per_checksum = atol(optarg);
break;
case 'K':
opt->reseed_checksum = 0;
break;
#endif
#endif
#ifndef CHKIMG
case 'O':
opt->overwrite++;
case 'o':
opt->target = optarg;
break;
case 'W':
opt->restore_raw_file = 1;
break;
case 'w':
opt->skip_write_error = 1;
break;
case 'I':
opt->ignore_fschk++;
break;
case 'q':
opt->quiet = 1;
break;
case 'E':
opt->offset = atol(optarg);
break;
#endif
#ifdef HAVE_LIBNCURSESW
case 'N':
opt->ncurses = 1;
break;
#endif
default:
fprintf(stderr, "Unknown option '%s'.\n", argv[optind-1]);
usage();
}
}
if (mode != 1) {
usage();
}
if (!opt->debug) {
opt->debug = 0;
}
// fix conflict option for dev-to-dev
if (opt->dd != 0 || opt->domain != 0) {
opt->checksum_mode = CSM_NONE;
opt->reseed_checksum = 1;
opt->blocks_per_checksum = 0;
}
if ((!opt->target) && (!opt->source)) {
fprintf(stderr, "There is no image name. Use --help get more info.\n");
exit(0);
}
if (opt->buffer_size < 512) {
fprintf(stderr, "Too small or bad buffer size. Use --help get more info.\n");
exit(0);
}
if (!opt->target)
opt->target = "-";
if (!opt->source)
opt->source = "-";
if (opt->clone || opt->domain) {
if ((!strcmp(opt->source, "-")) || (!opt->source)) {
fprintf(stderr, "Partclone can't %s from stdin.\nFor help, type: %s -h\n",
opt->clone ? "clone" : "make domain log",
get_exec_name());
exit(0);
}
}
if (opt->checksum_mode == CSM_NONE) {
if (opt->blocks_per_checksum > 0) {
fprintf(stderr, "No checksum mode specified with blocks_per_checksum\n"
"Use --help to get more info.\n");
exit(0);
}
if (!opt->reseed_checksum) {
fprintf(stderr, "No checksum mode specified with reseed_checksum\n"
"Use --help to get more info.\n");
exit(0);
}
}
#ifndef CHKIMG
if (opt->restore) {
if ((!strcmp(opt->target, "-")) || (!opt->target)) {
fprintf(stderr, "Partclone can't restore to stdout.\nFor help,type: %s -h\n", get_exec_name());
exit(0);
}
}
#endif
}
/**
* options
* usage - print message "how to use this"
* print_version
* parse_options - get parameters from agrc, argv
*/
void usage(void) {
fprintf(stderr, "%s v%s http://partclone.org\nUsage: %s [OPTIONS]\n"
#ifdef CHKIMG
" Check partclone image.\n"
#else
#ifdef RESTORE
" Restore partclone image to a device or standard output.\n"
#else
" Efficiently clone to an image, device or standard output.\n"
#endif
#endif
"\n"
#ifndef CHKIMG
" -o, --output FILE Output FILE\n"
" -O --overwrite FILE Output FILE, overwriting if exists\n"
" -W --restore_raw_file create special raw file for loop device\n"
#endif
" -s, --source FILE Source FILE\n"
" -L, --logfile FILE Log FILE\n"
#ifndef CHKIMG
#ifndef RESTORE
#ifndef DD
" -c, --clone Save to the special image format\n"
" -r, --restore Restore from the special image format\n"
" -b, --dev-to-dev Local device to device copy mode\n"
#endif
" -D, --domain Create ddrescue domain log from source device\n"
" --offset_domain=X Add offset X (bytes) to domain log values\n"
" -R, --rescue Continue clone while disk read errors\n"
" -aX --checksum-mode=X Checksum formula to use to add error detection\n"
" where X:\n"
" 0: No checksum (no slowdown, smallest image)\n"
" 1: CRC32 (Fast to compute, basic detection)\n"
" -kX --blocks-per-checksum=X\n"
" Write one checksum for every X blocks\n"
" -K, --no-reseed Do not reseed the checksum at each write (TEST)\n"
#endif
" -w, --skip_write_error Continue restore while write errors\n"
#endif
" -dX, --debug=X Set the debug level to X = [0|1|2]\n"
" -C, --no_check Don't check device size and free space\n"
#ifdef HAVE_LIBNCURSESW
" -N, --ncurses Using Ncurses User Interface\n"
#endif
#ifndef CHKIMG
" -I, --ignore_fschk Ignore filesystem check\n"
#endif
" -i, --ignore_crc Ignore checksum error\n"
" -F, --force Force progress\n"
" -f, --UI-fresh Fresh times of progress\n"
" -B, --no_block_detail Show progress message without block detail\n"
" -z, --buffer_size SIZE Read/write buffer size (default: %d)\n"
#ifndef CHKIMG
" -q, --quiet Disable progress message\n"
" -E, --offset=X Add offset X (bytes) to OUTPUT\n"
#endif
" -n, --note NOTE Display Message Note (128 words)\n"
" -v, --version Display partclone version\n"
" -h, --help Display this help\n"
, get_exec_name(), VERSION, get_exec_name(), DEFAULT_BUFFER_SIZE);
exit(0);
}
