/**
* Write super sector to the log device.
*
* @fd file descripter of log device.
* @super_sect super sector data.
*
* RETURN:
* true in success, or false.
*/
bool write_super_sector_raw(int fd, const struct walb_super_sector* super_sect)
{
u32 sect_sz;
u8 *buf;
struct walb_super_sector *p;
u32 csum;
u64 off0, off1;
bool ret0, ret1;
ASSERT(super_sect);
sect_sz = super_sect->physical_bs;
/* Memory image of sector. */
if (posix_memalign((void **)&buf, PAGE_SIZE, sect_sz) != 0) {
return false;
}
memset(buf, 0, sect_sz);
memcpy(buf, super_sect, sizeof(*super_sect));
p = (struct walb_super_sector *)buf;
/* Set sector type. */
p->sector_type = SECTOR_TYPE_SUPER;
/* Calculate checksum. */
p->checksum = 0;
csum = checksum(buf, sect_sz, 0);
print_binary_hex(buf, sect_sz);/* debug */
p->checksum = csum;
print_binary_hex(buf, sect_sz);/* debug */
ASSERT(checksum(buf, sect_sz, 0) == 0);
/* Really write sector data. */
off0 = get_super_sector0_offset_2(super_sect);
off1 = get_super_sector1_offset_2(super_sect);
ret0 = write_sector_raw(fd, buf, sect_sz, off0);
ret1 = write_sector_raw(fd, buf, sect_sz, off1);
free(buf);
return ret0 && ret1;
}
void write_sector(int sector, uchar* buf){
packet p;
p.size = 0x10;
p.reserved = 0;
p.sect_count = 1;
p.buf_offset = buf;
//p.buf_segment -> assembleur;
p.first_sect[0] = sector;
p.first_sect[1] = 0;
p.first_sect[2] = 0;
p.first_sect[3] = 0;
write_sector_raw(0x80, &p);
}
