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|
use crate::packet_content::PeerToPeerCipher;
use bytes::{Buf, Bytes};
use chrono::{DateTime, Utc};
#[derive(PartialEq, Debug, Clone)]
pub struct Response {
pub(crate) cipher: PeerToPeerCipher,
pub cleartext: Option<ClearResponse>,
}
impl From<Bytes> for Response {
fn from(value: Bytes) -> Self {
Response {
cipher: PeerToPeerCipher::from(value),
cleartext: None,
}
}
}
#[derive(PartialEq, Debug, Clone)]
pub struct ClearResponse {
pub timestamp: DateTime<Utc>,
pub content: ResponseContent,
}
#[derive(PartialEq, Debug, Clone)]
pub enum ResponseContent {
Stats(RepeaterStats),
Telemetry(Telemetry),
Invalid,
}
#[repr(C)]
#[derive(PartialEq, Debug, Clone)]
pub struct RepeaterStats {
pub batt_milli_volts: u16,
pub curr_tx_queue_len: u16,
pub noise_floor: i16,
pub last_rssi: i16,
pub n_packets_recv: u32,
pub n_packets_sent: u32,
pub total_air_time_secs: u32,
pub total_up_time_secs: u32,
pub n_sent_flood: u32,
pub n_sent_direct: u32,
pub n_recv_flood: u32,
pub n_recv_direct: u32,
pub err_events: u16,
pub last_snr: i16,
pub n_direct_dups: u16,
pub n_flood_dups: u16,
pub total_rx_air_time_secs: u32,
}
#[derive(PartialEq, Debug, Clone)]
pub struct Telemetry {}
impl From<Bytes> for ClearResponse {
fn from(value: Bytes) -> Self {
let mut bytes = value.clone();
let mut clear_response = ClearResponse {
timestamp: DateTime::from_timestamp(0, 0).unwrap(),
content: ResponseContent::Invalid,
};
if bytes.len() < 4 {
return clear_response;
}
if let Some(timestamp) = DateTime::from_timestamp(bytes.get_u32_le() as i64, 0) {
clear_response.timestamp = timestamp;
}
// Unfortunately, there's no way to know for sure what kind of response this is,
// so we have to make some educated guesses. In particular, it seems like all
// telemetry responses start with voltage on channel 1. So, if the first two bytes
// are exactly 0x0174 then we'll assume it's a telemetry packet.
// let maybe_cayenne = bytes.clone().get_u16();
// if maybe_cayenne == 0x0174 {
// println!("CayenneLPP: {} bytes: {}", bytes.len(), encode(&bytes));
// } else {
// println!("{} bytes: {}", value.len(), encode(&value));
// }
clear_response
}
}
impl core::fmt::Display for Response {
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
f.write_fmt(format_args!(
"({:2x?}) -> ({:2x?}) MAC: {:4x?} ",
self.cipher.source, self.cipher.destination, self.cipher.mac
))?;
if let Some(_cleartext) = &self.cipher.cleartext {
f.write_fmt(format_args!(""))
} else {
f.write_str("ENCRYPTED")
}
}
}
#[cfg(test)]
mod tests {
use crate::{
packet::*,
packet_content::{PacketContent, PeerToPeerCipher},
response::Response,
std_identity::KeystoreInput,
};
use bytes::Bytes;
use hex::decode;
use std::str::FromStr;
use tinyvec::ArrayVec;
#[test]
fn response_encrypted() {
let sample = "06003412b9000cf1641739f7e4d49bff88bf5695b304111b15277de3a6031b9af3a2b6371cf75615ffefe7dcc0bbea2856c4e798a72d5b989d6de1aa646c1e2eef4cf13e6f92";
let lhs_packet = Packet {
route_type: RouteType::Direct,
version: PayloadVersion::VersionOne,
path: ArrayVec::new(),
transport: [0, 0],
raw_content: Bytes::copy_from_slice(&decode("3412b9000cf1641739f7e4d49bff88bf5695b304111b15277de3a6031b9af3a2b6371cf75615ffefe7dcc0bbea2856c4e798a72d5b989d6de1aa646c1e2eef4cf13e6f92").unwrap()),
content: PacketContent::Response(Response {
cipher: PeerToPeerCipher {
destination: 0x34,
source: 0x12,
mac: 0xb900,
ciphertext: Bytes::copy_from_slice(&decode("0cf1641739f7e4d49bff88bf5695b304111b15277de3a6031b9af3a2b6371cf75615ffefe7dcc0bbea2856c4e798a72d5b989d6de1aa646c1e2eef4cf13e6f92").unwrap()),
cleartext: None
},
cleartext: None
}),
incomplete: false
};
let rhs_packet = Packet::from_str(sample).unwrap();
assert_eq!(lhs_packet, rhs_packet);
assert_eq!(
format!("{}", lhs_packet),
" Direct | v1 | | [] | | RESPONSE | (12) -> (34) MAC: b900 ENCRYPTED"
)
}
#[test]
fn response_decrypted() {
let sample = "06003412b9000cf1641739f7e4d49bff88bf5695b304111b15277de3a6031b9af3a2b6371cf75615ffefe7dcc0bbea2856c4e798a72d5b989d6de1aa646c1e2eef4cf13e6f92";
let lhs_packet = Packet {
route_type: RouteType::Direct,
version: PayloadVersion::VersionOne,
path: ArrayVec::new(),
transport: [0, 0],
raw_content: Bytes::copy_from_slice(&decode("3412b9000cf1641739f7e4d49bff88bf5695b304111b15277de3a6031b9af3a2b6371cf75615ffefe7dcc0bbea2856c4e798a72d5b989d6de1aa646c1e2eef4cf13e6f92").unwrap()),
content: PacketContent::Response(Response {
cipher: PeerToPeerCipher {
destination: 0x34,
source: 0x12,
mac: 0xb900,
ciphertext: Bytes::copy_from_slice(&decode("0cf1641739f7e4d49bff88bf5695b304111b15277de3a6031b9af3a2b6371cf75615ffefe7dcc0bbea2856c4e798a72d5b989d6de1aa646c1e2eef4cf13e6f92").unwrap()),
cleartext: Some(Bytes::copy_from_slice(b"\x9d\xd9\x16\xd2\x94\x10\0\0\xac\xff\xfe\xff\x12\0\0\0\x12\0\0\0\x05\0\0\0\xb7\x04\0\0\x12\0\0\0\0\0\0\0\x10\0\0\0\x02\0\0\0\0\03\0\0\0\x02\0\x04\0\0\0\0\0\0\0\0\0\0\0"))
},
cleartext: None}),
incomplete: false,
};
let mut rhs_packet = Packet::from_str(sample).unwrap();
let file_contents = include_str!("../test_identities_file.toml");
let keystore_in: KeystoreInput = toml::from_str(file_contents).unwrap();
let keystore = keystore_in.compile();
rhs_packet.try_decrypt(&keystore);
// assert_eq!(lhs_packet, rhs_packet);
// assert_eq!(format!("{}", lhs_packet), " Direct | v1 | | [] | | RESPONSE | (12) -> (34) MAC: b900 ENCRYPTED")
}
#[test]
fn stats_response() {
let sample = "06003412CF45D4856713A44CA5411C327DD96575CF632F626C5B17046BECC220B9E476362B9AC510637F3CC68160E263F8D9181A03965B989D6DE1AA646C1E2EEF4CF13E6F92";
let file_contents = include_str!("../test_identities_file.toml");
let keystore_in: KeystoreInput = toml::from_str(file_contents).unwrap();
let keystore = keystore_in.compile();
let lhs_packet = Packet {
route_type: RouteType::Direct,
version: PayloadVersion::VersionOne,
path: ArrayVec::new(),
transport: [0, 0],
raw_content: Bytes::copy_from_slice(&decode("3412b9000cf1641739f7e4d49bff88bf5695b304111b15277de3a6031b9af3a2b6371cf75615ffefe7dcc0bbea2856c4e798a72d5b989d6de1aa646c1e2eef4cf13e6f92").unwrap()),
content: PacketContent::Response(Response {
cipher: PeerToPeerCipher {
destination: 0x34,
source: 0x12,
mac: 0xb900,
ciphertext: Bytes::copy_from_slice(&decode("0cf1641739f7e4d49bff88bf5695b304111b15277de3a6031b9af3a2b6371cf75615ffefe7dcc0bbea2856c4e798a72d5b989d6de1aa646c1e2eef4cf13e6f92").unwrap()),
cleartext: Some(Bytes::copy_from_slice(&decode("c1cc1b69c8100000a7fff7ff1c000000160000000400000065060000050000001100000005000000170000000000300000000200040000000000000000000000").unwrap()))
},
cleartext: None}),
incomplete: false,
};
let mut rhs_packet = Packet::from_str(sample).unwrap();
rhs_packet.try_decrypt(&keystore);
println!("{:#?}", rhs_packet);
// assert_eq!(lhs_packet, rhs_packet);
}
#[test]
fn acl_response() {
let sample = "06003412DE04889E2387AC81CC38108EF3E575B4B61FFA6AB9573DBAF589891F79D6C20FA33B6CE5CD672EE982F6DAE79DD8BC83F648";
let file_contents = include_str!("../test_identities_file.toml");
let keystore_in: KeystoreInput = toml::from_str(file_contents).unwrap();
let keystore = keystore_in.compile();
let lhs_packet = Packet {
route_type: RouteType::Direct,
version: PayloadVersion::VersionOne,
path: ArrayVec::new(),
transport: [0, 0],
raw_content: Bytes::copy_from_slice(&decode("3412b9000cf1641739f7e4d49bff88bf5695b304111b15277de3a6031b9af3a2b6371cf75615ffefe7dcc0bbea2856c4e798a72d5b989d6de1aa646c1e2eef4cf13e6f92").unwrap()),
content: PacketContent::Response(Response {
cipher: PeerToPeerCipher {
destination: 0x34,
source: 0x12,
mac: 0xb900,
ciphertext: Bytes::copy_from_slice(&decode("0cf1641739f7e4d49bff88bf5695b304111b15277de3a6031b9af3a2b6371cf75615ffefe7dcc0bbea2856c4e798a72d5b989d6de1aa646c1e2eef4cf13e6f92").unwrap()),
cleartext: Some(Bytes::copy_from_slice(&decode("efcc1b6987449a393ea60355ebee904f160398fe6b93288b0312349bdc1f760334569df1f96603000000000000000000").unwrap()))
},
cleartext: None}),
incomplete: false,
};
let mut rhs_packet = Packet::from_str(sample).unwrap();
rhs_packet.try_decrypt(&keystore);
println!("{:#?}", rhs_packet);
// assert_eq!(lhs_packet, rhs_packet);
}
#[test]
fn unknown_response() {
let sample = "06003412879A1045F0290639ED9B6D4BB0B51C14E13D";
let file_contents = include_str!("../test_identities_file.toml");
let keystore_in: KeystoreInput = toml::from_str(file_contents).unwrap();
let keystore = keystore_in.compile();
let lhs_packet = Packet {
route_type: RouteType::Direct,
version: PayloadVersion::VersionOne,
path: ArrayVec::new(),
transport: [0, 0],
raw_content: Bytes::copy_from_slice(&decode("3412b9000cf1641739f7e4d49bff88bf5695b304111b15277de3a6031b9af3a2b6371cf75615ffefe7dcc0bbea2856c4e798a72d5b989d6de1aa646c1e2eef4cf13e6f92").unwrap()),
content: PacketContent::Response(Response {
cipher: PeerToPeerCipher {
destination: 0x34,
source: 0x12,
mac: 0xb900,
ciphertext: Bytes::copy_from_slice(&decode("0cf1641739f7e4d49bff88bf5695b304111b15277de3a6031b9af3a2b6371cf75615ffefe7dcc0bbea2856c4e798a72d5b989d6de1aa646c1e2eef4cf13e6f92").unwrap()),
cleartext: Some(Bytes::copy_from_slice(&decode("f6cc1b69000000000000000000000000").unwrap()))
},
cleartext: None}),
incomplete: false,
};
let mut rhs_packet = Packet::from_str(sample).unwrap();
rhs_packet.try_decrypt(&keystore);
println!("{:#?}", rhs_packet);
// assert_eq!(lhs_packet, rhs_packet);
}
#[test]
fn telemetry_response() {
let sample = "06003412187C3AE03E52D347B957D634221DB5E86815";
let file_contents = include_str!("../test_identities_file.toml");
let keystore_in: KeystoreInput = toml::from_str(file_contents).unwrap();
let keystore = keystore_in.compile();
let lhs_packet = Packet {
route_type: RouteType::Direct,
version: PayloadVersion::VersionOne,
path: ArrayVec::new(),
transport: [0, 0],
raw_content: Bytes::copy_from_slice(&decode("3412b9000cf1641739f7e4d49bff88bf5695b304111b15277de3a6031b9af3a2b6371cf75615ffefe7dcc0bbea2856c4e798a72d5b989d6de1aa646c1e2eef4cf13e6f92").unwrap()),
content: PacketContent::Response(Response {
cipher: PeerToPeerCipher {
destination: 0x34,
source: 0x12,
mac: 0xb900,
ciphertext: Bytes::copy_from_slice(&decode("0cf1641739f7e4d49bff88bf5695b304111b15277de3a6031b9af3a2b6371cf75615ffefe7dcc0bbea2856c4e798a72d5b989d6de1aa646c1e2eef4cf13e6f92").unwrap()),
cleartext: Some(Bytes::copy_from_slice(&decode("fdcc1b69017401ad0000000000000000").unwrap()))
},
cleartext: None}),
incomplete: false,
};
let mut rhs_packet = Packet::from_str(sample).unwrap();
rhs_packet.try_decrypt(&keystore);
println!("{:#?}", rhs_packet);
// assert_eq!(lhs_packet, rhs_packet);
}
}
|
