int scan_ubi(libubi_t lib_ubi)
{
struct ubi_dev_info dev_info;
struct ubi_info info;
int i, j;
if (ubi_get_info(lib_ubi, &info))
return -1;
if (!info.dev_count)
return 0;
ubi_dev = xcalloc(info.dev_count, sizeof(ubi_dev[0]));
for (i = info.lowest_dev_num; i <= info.highest_dev_num; ++i) {
if (!ubi_dev_present(lib_ubi, i))
continue;
if (ubi_get_dev_info1(lib_ubi, i, &dev_info)) {
perror("ubi_get_dev_info1");
return -1;
}
for (j = 0; j < num_mtd_devices; ++j) {
if (mtd_dev[j].info.mtd_num == dev_info.mtd_num)
break;
}
if (j == num_mtd_devices) {
fprintf(stderr, "Cannot find mtd device %d refered to "
"by ubi device %d\n", dev_info.mtd_num,
dev_info.dev_num);
return -1;
}
ubi_dev[num_ubi_devices].info = dev_info;
mtd_dev[j].ubi = ubi_dev + num_ubi_devices;
if (scan_ubi_device(lib_ubi, ubi_dev + num_ubi_devices))
return -1;
++num_ubi_devices;
}
return 0;
}
int ubi_get_dev_info1(libubi_t desc, int dev_num, struct ubi_dev_info *info)
{
DIR *sysfs_ubi;
struct dirent *dirent;
struct libubi *lib = (struct libubi *)desc;
memset(info, 0, sizeof(struct ubi_dev_info));
info->dev_num = dev_num;
if (!ubi_dev_present(desc, dev_num))
return -1;
sysfs_ubi = opendir(lib->sysfs_ubi);
if (!sysfs_ubi)
return -1;
info->lowest_vol_id = INT_MAX;
while (1) {
int vol_id, ret, devno;
char tmp_buf[256];
errno = 0;
dirent = readdir(sysfs_ubi);
if (!dirent)
break;
if (strlen(dirent->d_name) >= 255) {
errmsg("invalid entry in %s: \"%s\"",
lib->sysfs_ubi, dirent->d_name);
goto out_close;
}
ret = sscanf(dirent->d_name, UBI_VOL_NAME_PATT"%s", &devno, &vol_id, tmp_buf);
if (ret == 2 && devno == dev_num) {
info->vol_count += 1;
if (vol_id > info->highest_vol_id)
info->highest_vol_id = vol_id;
if (vol_id < info->lowest_vol_id)
info->lowest_vol_id = vol_id;
}
}
if (!dirent && errno) {
sys_errmsg("readdir failed on \"%s\"", lib->sysfs_ubi);
goto out_close;
}
if (closedir(sysfs_ubi))
return sys_errmsg("closedir failed on \"%s\"", lib->sysfs_ubi);
if (info->lowest_vol_id == INT_MAX)
info->lowest_vol_id = 0;
if (dev_get_major(lib, dev_num, &info->major, &info->minor))
return -1;
if (dev_read_int(lib->dev_mtd_num, dev_num, &info->mtd_num))
return -1;
if (dev_read_int(lib->dev_avail_ebs, dev_num, &info->avail_lebs))
return -1;
if (dev_read_int(lib->dev_total_ebs, dev_num, &info->total_lebs))
return -1;
if (dev_read_int(lib->dev_bad_count, dev_num, &info->bad_count))
return -1;
if (dev_read_int(lib->dev_eb_size, dev_num, &info->leb_size))
return -1;
if (dev_read_int(lib->dev_bad_rsvd, dev_num, &info->bad_rsvd))
return -1;
if (dev_read_ll(lib->dev_max_ec, dev_num, &info->max_ec))
return -1;
if (dev_read_int(lib->dev_max_vols, dev_num, &info->max_vol_count))
return -1;
if (dev_read_int(lib->dev_min_io_size, dev_num, &info->min_io_size))
return -1;
info->avail_bytes = (long long)info->avail_lebs * info->leb_size;
info->total_bytes = (long long)info->total_lebs * info->leb_size;
return 0;
out_close:
closedir(sysfs_ubi);
return -1;
}