pim-protocol 0.1.5

Wire protocol types and frame serialization for the Proximity Internet Mesh
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
142
143
144
145
146

use super::super::*;

#[test]
fn ip_request_round_trip() {
    let frame = ControlFrame::IpRequest {
        requester_id: NodeId::from_bytes([0x42; 16]),
    };
    let mut buf = BytesMut::new();
    frame.encode(&mut buf);
    let decoded = ControlFrame::decode(&mut buf).unwrap();
    assert_eq!(frame, decoded);
}

#[test]
fn ip_assign_round_trip() {
    let frame = ControlFrame::IpAssign {
        assigned_ip: [10, 77, 0, 5],
        subnet_mask: 16,
        gateway_ip: [10, 77, 0, 1],
        lease_seconds: 3600,
    };
    let mut buf = BytesMut::new();
    frame.encode(&mut buf);
    let decoded = ControlFrame::decode(&mut buf).unwrap();
    assert_eq!(frame, decoded);
}

#[test]
fn goodbye_round_trip() {
    let frame = ControlFrame::Goodbye {
        departing_id: NodeId::from_bytes([0xAB; 16]),
        reason: 0,
    };
    let mut buf = BytesMut::new();
    frame.encode(&mut buf);
    let decoded = ControlFrame::decode(&mut buf).unwrap();
    assert_eq!(frame, decoded);
}

#[test]
fn rekey_round_trip() {
    let frame = ControlFrame::Rekey;
    let mut buf = BytesMut::new();
    frame.encode(&mut buf);
    let decoded = ControlFrame::decode(&mut buf).unwrap();
    assert_eq!(frame, decoded);
}

#[test]
fn ping_pong_round_trip() {
    let ping = ControlFrame::Ping { nonce: 12345 };
    let pong = ControlFrame::Pong { nonce: 12345 };

    for frame in [ping, pong] {
        let mut buf = BytesMut::new();
        frame.encode(&mut buf);
        let decoded = ControlFrame::decode(&mut buf).unwrap();
        assert_eq!(frame, decoded);
    }
}

#[test]
fn reject_empty() {
    let mut buf = BytesMut::new();
    assert!(ControlFrame::decode(&mut buf).is_err());
}

#[test]
fn reject_unknown_type() {
    let mut buf = BytesMut::from(&[0xFF][..]);
    assert!(ControlFrame::decode(&mut buf).is_err());
}

#[test]
fn reject_truncated_ip_assign() {
    let mut buf = BytesMut::from(&[0x02, 10, 77, 0][..]); // too short
    assert!(ControlFrame::decode(&mut buf).is_err());
}

#[test]
fn peer_info_round_trip() {
    let frame = ControlFrame::PeerInfo {
        x25519_pub: [0x11; 32],
        friendly_name: "client-a-macbook".into(),
    };
    let mut buf = BytesMut::new();
    frame.encode(&mut buf);
    let decoded = ControlFrame::decode(&mut buf).unwrap();
    assert_eq!(frame, decoded);
}

#[test]
fn peer_info_empty_name_round_trip() {
    let frame = ControlFrame::PeerInfo {
        x25519_pub: [0x22; 32],
        friendly_name: String::new(),
    };
    let mut buf = BytesMut::new();
    frame.encode(&mut buf);
    let decoded = ControlFrame::decode(&mut buf).unwrap();
    assert_eq!(frame, decoded);
}

#[test]
fn plugin_payload_round_trip() {
    let frame = ControlFrame::PluginPayload {
        kind: "messaging.msg".into(),
        body: bytes::Bytes::from_static(&[0xDE, 0xAD, 0xBE, 0xEF]),
    };
    let mut buf = BytesMut::new();
    frame.encode(&mut buf);
    let decoded = ControlFrame::decode(&mut buf).unwrap();
    assert_eq!(frame, decoded);
}

#[test]
fn plugin_payload_empty_body_round_trip() {
    let frame = ControlFrame::PluginPayload {
        kind: "messaging.ack".into(),
        body: bytes::Bytes::new(),
    };
    let mut buf = BytesMut::new();
    frame.encode(&mut buf);
    let decoded = ControlFrame::decode(&mut buf).unwrap();
    assert_eq!(frame, decoded);
}

#[test]
fn reject_truncated_peer_info() {
    let mut buf = BytesMut::from(&[0x07, 0x00, 0x01][..]); // too short
    assert!(ControlFrame::decode(&mut buf).is_err());
}

#[test]
fn reject_truncated_plugin_payload_header() {
    // tag + kind_len = 0x05 promising 5 bytes of kind, but no kind/body follows.
    let mut buf = BytesMut::from(&[0x08, 0x05][..]);
    assert!(ControlFrame::decode(&mut buf).is_err());
}

#[test]
fn reject_truncated_plugin_payload_body() {
    // tag + kind_len(1) + kind("a") + body_len(0x0008) + only 2 body bytes.
    let mut buf = BytesMut::from(&[0x08, 0x01, b'a', 0x00, 0x08, 0xAA, 0xBB][..]);
    assert!(ControlFrame::decode(&mut buf).is_err());
}