fips-core 0.3.63

Reusable FIPS mesh, endpoint, transport, and protocol library
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
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141

use super::*;

use io::MockBleIo;

fn test_addr(n: u8) -> BleAddr {
    BleAddr {
        adapter: "hci0".to_string(),
        device: [0xAA, 0xBB, 0xCC, 0xDD, 0xEE, n],
    }
}

fn make_transport(io: MockBleIo) -> (BleTransport<MockBleIo>, crate::transport::PacketRx) {
    let (tx, rx) = crate::transport::packet_channel(64);
    let config = BleConfig::default();
    let transport = BleTransport::new(TransportId::new(1), None, config, io, tx);
    (transport, rx)
}

#[test]
fn test_transport_type() {
    let io = MockBleIo::new("hci0", test_addr(1));
    let (transport, _rx) = make_transport(io);
    assert_eq!(transport.transport_type().name, "ble");
    assert!(transport.transport_type().connection_oriented);
    assert!(transport.transport_type().reliable);
}

#[test]
fn test_transport_initial_state() {
    let io = MockBleIo::new("hci0", test_addr(1));
    let (transport, _rx) = make_transport(io);
    assert_eq!(transport.state(), TransportState::Configured);
}

#[test]
fn test_transport_default_mtu() {
    let io = MockBleIo::new("hci0", test_addr(1));
    let (transport, _rx) = make_transport(io);
    assert_eq!(transport.mtu(), 2048);
}

#[tokio::test]
async fn test_transport_start_stop() {
    let io = MockBleIo::new("hci0", test_addr(1));
    let (mut transport, _rx) = make_transport(io);
    transport.start_async().await.unwrap();
    assert_eq!(transport.state(), TransportState::Up);

    transport.stop_async().await.unwrap();
    assert_eq!(transport.state(), TransportState::Down);
}

#[tokio::test(start_paused = true)]
async fn test_scan_discovers_peers() {
    let io = MockBleIo::new("hci0", test_addr(1));
    let (mut transport, _rx) = make_transport(io);
    transport.start_async().await.unwrap();

    // Inject scan results via the I/O mock
    transport.io.inject_scan_result(test_addr(2)).await;
    transport.io.inject_scan_result(test_addr(3)).await;

    // Let scan_probe_loop pick up results and schedule jitter
    tokio::task::yield_now().await;
    // Advance past max jitter (5s) so probes fire
    tokio::time::advance(std::time::Duration::from_secs(6)).await;
    // Let the expired entries get processed
    tokio::task::yield_now().await;

    // Without pubkey set, scan results go to discovery buffer as bare MACs
    let peers = transport.discovery_buffer.take();
    assert_eq!(peers.len(), 2);
}

#[tokio::test(start_paused = true)]
async fn test_scan_deduplicates() {
    let io = MockBleIo::new("hci0", test_addr(1));
    let (mut transport, _rx) = make_transport(io);
    transport.start_async().await.unwrap();

    // Same address twice
    transport.io.inject_scan_result(test_addr(2)).await;
    transport.io.inject_scan_result(test_addr(2)).await;

    // Let scan_probe_loop pick up results
    tokio::task::yield_now().await;
    tokio::time::advance(std::time::Duration::from_secs(6)).await;
    tokio::task::yield_now().await;

    let peers = transport.discovery_buffer.take();
    assert_eq!(peers.len(), 1);
}

#[test]
fn test_transport_auto_connect_default() {
    let io = MockBleIo::new("hci0", test_addr(1));
    let (transport, _rx) = make_transport(io);
    assert!(!transport.auto_connect());
}

#[test]
fn test_connection_state_none() {
    let io = MockBleIo::new("hci0", test_addr(1));
    let (transport, _rx) = make_transport(io);
    let addr = test_addr(2).to_transport_addr();
    assert_eq!(
        transport.connection_state_sync(&addr),
        ConnectionState::None
    );
}

/// Verify that the cross-probe tie-breaker follows the same convention
/// as `cross_connection_winner`: smaller NodeAddr's outbound wins.
#[test]
fn test_tiebreaker_convention() {
    use secp256k1::{Secp256k1, SecretKey};

    let secp = Secp256k1::new();
    let sk_a = SecretKey::from_slice(&[1u8; 32]).unwrap();
    let sk_b = SecretKey::from_slice(&[2u8; 32]).unwrap();
    let (pk_a, _) = sk_a.public_key(&secp).x_only_public_key();
    let (pk_b, _) = sk_b.public_key(&secp).x_only_public_key();

    let addr_a = NodeAddr::from_pubkey(&pk_a);
    let addr_b = NodeAddr::from_pubkey(&pk_b);

    // Determine which is smaller
    let (smaller, larger) = if addr_a < addr_b {
        (addr_a, addr_b)
    } else {
        (addr_b, addr_a)
    };

    // scan_loop (outbound): promotes when our_addr < peer_addr
    // Smaller node scanning larger → our_addr < peer_addr → promote (win)
    assert!(smaller < larger, "test setup: smaller < larger");

    // accept_loop (inbound): drops when our_addr < peer_addr
    // Smaller node accepting from larger → drops inbound (outbound wins)
    // This means: smaller always uses outbound, larger always uses inbound
}