levin 0.1.0

Library for the Levin p2p protocol
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65

use serde::{Deserialize, Serialize};

use crate::constants;

#[derive(Deserialize, Serialize, Debug)]
struct HandshakeNodeData {
    local_time: u64,
    my_port: u32,
    #[serde(with = "serde_bytes")]
    network_id: Vec<u8>,
    peer_id: u64,
}

impl HandshakeNodeData {
    fn unix_now() -> u64 {
        std::time::SystemTime::now()
            .duration_since(std::time::UNIX_EPOCH)
            .unwrap()
            .as_secs()
    }

    fn new(my_port: u32, peer_id: u64) -> Self {
        Self {
            local_time: Self::unix_now(),
            my_port: my_port,
            network_id: Vec::<u8>::from(constants::CRYPTONOTE_STAGENET_NETWORK_ID),
            peer_id: peer_id,
        }
    }
}

#[derive(Debug, Serialize, Deserialize)]
struct HandshakePayloadData {
    cumulative_difficulty: u64,
    current_height: u64,
    #[serde(with = "serde_bytes")]
    top_id: Vec<u8>,
    top_version: u8,
}

impl HandshakePayloadData {
    fn genesis_payload() -> Self {
        Self {
            cumulative_difficulty: 1,
            current_height: 1,
            top_id: constants::MONERO_GENESIS_HASH.into(),
            top_version: 1,
        }
    }
}

#[derive(Deserialize, Serialize, Debug)]
pub struct HandshakeRequestPayload {
    node_data: HandshakeNodeData,
    payload_data: HandshakePayloadData,
}

impl HandshakeRequestPayload {
    pub fn new(my_port: u32, peer_id: u64) -> Self {
        Self {
            node_data: HandshakeNodeData::new(my_port, peer_id),
            payload_data: HandshakePayloadData::genesis_payload(),
        }
    }
}