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use super::*;
impl SpacePacket<TmPacket<ServiceSuccess>> {
pub fn new_service_1_1<T: Request>(
request: &T,
destination_id: u16,
packet_name: u16,
) -> Result<Self, Error> {
SpacePacket::<TmPacket<ServiceSuccess>>::new(request, 1, destination_id, packet_name)
}
pub fn new_service_1_3<T: Request>(
request: &T,
destination_id: u16,
packet_name: u16,
) -> Result<Self, Error> {
SpacePacket::<TmPacket<ServiceSuccess>>::new(request, 3, destination_id, packet_name)
}
pub fn new_service_1_7<T: Request>(
request: &T,
destination_id: u16,
packet_name: u16,
) -> Result<Self, Error> {
SpacePacket::<TmPacket<ServiceSuccess>>::new(request, 7, destination_id, packet_name)
}
pub fn new<T: Request>(
request: &T,
message_subtype: u8,
destination_id: u16,
packet_name: u16,
) -> Result<Self, Error> {
let req_id = request.to_request();
let data_len = TmPacketHeader::TM_HEADER_LEN + REQ_ID_LEN + crate::sp::PEC_LEN - 1;
let data_len = data_len as u16;
if message_subtype != 1 && message_subtype != 3 && message_subtype != 7 {
return Err(Error::InvalidPacket);
}
let packet_error_control = 0;
let primary_header = PrimaryHeader::new(
PrimaryHeader::VER_NO,
false,
true,
req_id.apid,
(true, true),
packet_name,
data_len,
)?;
let header = TmPacketHeader::new(SERVICE_TYPE, message_subtype, destination_id)?;
Ok(SpacePacket::<TmPacket<ServiceSuccess>> {
primary_header,
data: TmPacket {
header,
user_data: TxUserData::<ServiceSuccess> {
packet_error_control,
data: ServiceSuccess { request_id: req_id },
},
},
})
}
pub fn from_bytes(buffer: &[u8]) -> Result<Self, Error> {
if buffer.len()
!= PrimaryHeader::PH_LEN + TmPacketHeader::TM_HEADER_LEN + REQ_ID_LEN + PEC_LEN
{
return Err(Error::InvalidPacket);
}
let primary_header = PrimaryHeader::from_bytes(&buffer[..PrimaryHeader::PH_LEN])?;
if !primary_header.sec_header_flag || primary_header.ver_no != 0 || primary_header.type_flag
{
return Err(Error::InvalidPacket);
};
let sec_header = TmPacketHeader::from_bytes(
&buffer[PrimaryHeader::PH_LEN..PrimaryHeader::PH_LEN + TmPacketHeader::TM_HEADER_LEN],
)?;
if sec_header.service_type != SERVICE_TYPE
|| !(sec_header.message_subtype == 1
|| sec_header.message_subtype == 3
|| sec_header.message_subtype == 7)
{
return Err(Error::InvalidPacket);
};
let req_id_start = PrimaryHeader::PH_LEN + TmPacketHeader::TM_HEADER_LEN;
let req_id = RequestId::from_bytes(&buffer[req_id_start..req_id_start + REQ_ID_LEN])?;
let packet_error_control = BigEndian::read_u16(&buffer[(buffer.len() - PEC_LEN)..]);
Ok(SpacePacket::<TmPacket<ServiceSuccess>> {
primary_header,
data: TmPacket {
header: sec_header,
user_data: TxUserData::<ServiceSuccess> {
packet_error_control,
data: ServiceSuccess { request_id: req_id },
},
},
})
}
pub fn to_bytes(&self) -> Vec<u8> {
let arr_len = PrimaryHeader::PH_LEN + 1 + self.primary_header.data_len as usize;
let mut bytes = Vec::with_capacity(arr_len);
bytes.extend(self.primary_header.to_bytes().to_vec());
bytes.extend(self.data.header.to_bytes().to_vec());
bytes.extend(self.data.user_data.data.request_id.to_bytes().to_vec());
bytes.push(0);
bytes.push(0);
let pec_start = arr_len - crate::sp::PEC_LEN;
BigEndian::write_u16(
&mut bytes[pec_start..],
self.data.user_data.packet_error_control,
);
bytes
}
}