WG_PKT_PADDING
padded_size = (last_unit + (WG_PKT_PADDING - 1)) &
~(WG_PKT_PADDING - 1);
padded_size = (last_unit + (WG_PKT_PADDING - 1)) & ~(WG_PKT_PADDING - 1);
static const uint8_t padding[WG_PKT_PADDING] = { 0 };