166 lines
3.8 KiB
C
166 lines
3.8 KiB
C
#include <ctype.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <getopt.h>
|
|
#include <limits.h>
|
|
#include <linux/input.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/reboot.h>
|
|
#include <sys/types.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
|
|
#include <sys/wait.h>
|
|
#include <sys/limits.h>
|
|
#include <dirent.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <signal.h>
|
|
#include <sys/wait.h>
|
|
|
|
extern int __system(const char *command);
|
|
#define BML_UNLOCK_ALL 0x8A29 ///< unlock all partition RO -> RW
|
|
|
|
#ifndef BOARD_BML_BOOT
|
|
#define BOARD_BML_BOOT "/dev/block/bml7"
|
|
#endif
|
|
|
|
#ifndef BOARD_BML_RECOVERY
|
|
#define BOARD_BML_RECOVERY "/dev/block/bml8"
|
|
#endif
|
|
|
|
static int restore_internal(const char* bml, const char* filename)
|
|
{
|
|
char buf[4096];
|
|
int dstfd, srcfd, bytes_read, bytes_written, total_read = 0;
|
|
if (filename == NULL)
|
|
srcfd = 0;
|
|
else {
|
|
srcfd = open(filename, O_RDONLY | O_LARGEFILE);
|
|
if (srcfd < 0)
|
|
return 2;
|
|
}
|
|
dstfd = open(bml, O_RDWR | O_LARGEFILE);
|
|
if (dstfd < 0)
|
|
return 3;
|
|
if (ioctl(dstfd, BML_UNLOCK_ALL, 0))
|
|
return 4;
|
|
do {
|
|
total_read += bytes_read = read(srcfd, buf, 4096);
|
|
if (!bytes_read)
|
|
break;
|
|
if (bytes_read < 4096)
|
|
memset(&buf[bytes_read], 0, 4096 - bytes_read);
|
|
if (write(dstfd, buf, 4096) < 4096)
|
|
return 5;
|
|
} while(bytes_read == 4096);
|
|
|
|
close(dstfd);
|
|
close(srcfd);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int cmd_bml_restore_raw_partition(const char *partition, const char *filename)
|
|
{
|
|
if (strcmp(partition, "boot") != 0 && strcmp(partition, "recovery") != 0 && strcmp(partition, "recoveryonly") != 0)
|
|
return 6;
|
|
|
|
int ret = -1;
|
|
if (strcmp(partition, "recoveryonly") != 0) {
|
|
// always restore boot, regardless of whether recovery or boot is flashed.
|
|
// this is because boot and recovery are the same on some samsung phones.
|
|
// unless of course, recoveryonly is explictly chosen (bml8)
|
|
ret = restore_internal(BOARD_BML_BOOT, filename);
|
|
if (ret != 0)
|
|
return ret;
|
|
}
|
|
|
|
if (strcmp(partition, "recovery") == 0 || strcmp(partition, "recoveryonly") == 0)
|
|
ret = restore_internal(BOARD_BML_RECOVERY, filename);
|
|
return ret;
|
|
}
|
|
|
|
int cmd_bml_backup_raw_partition(const char *partition, const char *out_file)
|
|
{
|
|
char* bml;
|
|
if (strcmp("boot", partition) == 0)
|
|
bml = BOARD_BML_BOOT;
|
|
else if (strcmp("recovery", partition) == 0)
|
|
bml = BOARD_BML_RECOVERY;
|
|
else {
|
|
printf("Invalid partition.\n");
|
|
return -1;
|
|
}
|
|
|
|
int ch;
|
|
FILE *in;
|
|
FILE *out;
|
|
int val = 0;
|
|
char buf[512];
|
|
unsigned sz = 0;
|
|
unsigned i;
|
|
int ret = -1;
|
|
char *in_file = bml;
|
|
|
|
in = fopen ( in_file, "r" );
|
|
if (in == NULL)
|
|
goto ERROR3;
|
|
|
|
out = fopen ( out_file, "w" );
|
|
if (out == NULL)
|
|
goto ERROR2;
|
|
|
|
fseek(in, 0L, SEEK_END);
|
|
sz = ftell(in);
|
|
fseek(in, 0L, SEEK_SET);
|
|
|
|
if (sz % 512)
|
|
{
|
|
while ( ( ch = fgetc ( in ) ) != EOF )
|
|
fputc ( ch, out );
|
|
}
|
|
else
|
|
{
|
|
for (i=0; i< (sz/512); i++)
|
|
{
|
|
if ((fread(buf, 512, 1, in)) != 1)
|
|
goto ERROR1;
|
|
if ((fwrite(buf, 512, 1, out)) != 1)
|
|
goto ERROR1;
|
|
}
|
|
}
|
|
|
|
fsync(out);
|
|
ret = 0;
|
|
ERROR1:
|
|
fclose ( out );
|
|
ERROR2:
|
|
fclose ( in );
|
|
ERROR3:
|
|
return ret;
|
|
}
|
|
|
|
int cmd_bml_erase_raw_partition(const char *partition)
|
|
{
|
|
// TODO: implement raw wipe
|
|
return 0;
|
|
}
|
|
|
|
int cmd_bml_erase_partition(const char *partition, const char *filesystem)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
int cmd_bml_mount_partition(const char *partition, const char *mount_point, const char *filesystem, int read_only)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
int cmd_bml_get_partition_device(const char *partition, char *device)
|
|
{
|
|
return -1;
|
|
}
|