arancini 0.7.5

High-performance BMP collector
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
147
148

use capnp::message::Builder;
use capnp::serialize;
use std::net::IpAddr;

use arancini_lib::update::Update;

use crate::update_capnp::update;

pub fn serialize_ip_addr(ip: IpAddr) -> [u8; 16] {
    match ip {
        IpAddr::V4(addr) => addr.to_ipv6_mapped().octets(),
        IpAddr::V6(addr) => addr.octets(),
    }
}

pub fn serialize_update_into(update: &Update, output: &mut Vec<u8>) {
    let attrs = update.attrs.as_ref();
    output.clear();

    let router_addr = serialize_ip_addr(update.router_addr);
    let peer_addr = serialize_ip_addr(update.peer_addr);
    let prefix_addr = serialize_ip_addr(update.prefix_addr);
    let next_hop = serialize_ip_addr(
        attrs
            .next_hop
            .unwrap_or(IpAddr::V6(std::net::Ipv6Addr::UNSPECIFIED)),
    );

    let mut message = Builder::new_default();
    {
        let mut u = message.init_root::<update::Builder>();
        u.set_time_received_ns(update.time_received_ns.timestamp_nanos_opt().unwrap() as u64);
        u.set_time_bmp_header_ns(update.time_bmp_header_ns.timestamp_nanos_opt().unwrap() as u64);
        u.set_router_addr(&router_addr);
        u.set_router_port(update.router_port);
        u.set_peer_addr(&peer_addr);
        u.set_peer_bgp_id(update.peer_bgp_id.into());
        u.set_peer_asn(update.peer_asn);
        u.set_prefix_addr(&prefix_addr);
        u.set_prefix_len(update.prefix_len);
        u.set_is_post_policy(update.is_post_policy);
        u.set_is_adj_rib_out(update.is_adj_rib_out);
        u.set_announced(update.announced);
        u.set_synthetic(update.synthetic);

        // BGP Attributes - structured fields
        u.set_origin(&attrs.origin);

        // AS Path
        let mut as_path = u.reborrow().init_as_path(attrs.as_path.len() as u32);
        for (i, &asn) in attrs.as_path.iter().enumerate() {
            as_path.set(i as u32, asn);
        }

        // Next Hop
        u.set_next_hop(&next_hop);

        // Multi Exit Discriminator
        u.set_multi_exit_disc(attrs.multi_exit_discriminator.unwrap_or(0));

        // Local Preference
        u.set_local_preference(attrs.local_preference.unwrap_or(0));

        // Only To Customer
        u.set_only_to_customer(attrs.only_to_customer.unwrap_or(0));

        // Atomic Aggregate
        u.set_atomic_aggregate(attrs.atomic_aggregate);

        // Aggregator
        if let (Some(asn), Some(bgp_id)) = (attrs.aggregator_asn, attrs.aggregator_bgp_id) {
            u.set_aggregator_asn(asn);
            u.set_aggregator_bgp_id(bgp_id);
        }

        // Communities
        let mut communities = u
            .reborrow()
            .init_communities(attrs.communities.len() as u32);
        for (i, &(asn, value)) in attrs.communities.iter().enumerate() {
            let mut community = communities.reborrow().get(i as u32);
            community.set_asn(asn);
            community.set_value(value);
        }

        // Extended Communities
        let mut ext_communities = u
            .reborrow()
            .init_extended_communities(attrs.extended_communities.len() as u32);
        for (i, (type_high, type_low, value)) in attrs.extended_communities.iter().enumerate() {
            let mut ext_community = ext_communities.reborrow().get(i as u32);
            ext_community.set_type_high(*type_high);
            ext_community.set_type_low(*type_low);
            ext_community.set_value(value);
        }

        // Large Communities
        let mut large_communities = u
            .reborrow()
            .init_large_communities(attrs.large_communities.len() as u32);
        for (i, &(global_admin, local_data1, local_data2)) in
            attrs.large_communities.iter().enumerate()
        {
            let mut large_community = large_communities.reborrow().get(i as u32);
            large_community.set_global_admin(global_admin);
            large_community.set_local_data_part1(local_data1);
            large_community.set_local_data_part2(local_data2);
        }

        // Originator ID
        if let Some(originator_id) = attrs.originator_id {
            u.set_originator_id(originator_id);
        }

        // Cluster List
        let mut cluster_list = u
            .reborrow()
            .init_cluster_list(attrs.cluster_list.len() as u32);
        for (i, &cluster_id) in attrs.cluster_list.iter().enumerate() {
            cluster_list.set(i as u32, cluster_id);
        }

        // MP Reach NLRI
        if let Some(afi) = attrs.mp_reach_afi {
            u.set_mp_reach_afi(afi);
        }
        if let Some(safi) = attrs.mp_reach_safi {
            u.set_mp_reach_safi(safi);
        }

        // MP Unreach NLRI
        if let Some(afi) = attrs.mp_unreach_afi {
            u.set_mp_unreach_afi(afi);
        }
        if let Some(safi) = attrs.mp_unreach_safi {
            u.set_mp_unreach_safi(safi);
        }
    }

    serialize::write_message(&mut *output, &message)
        .expect("serializing update into Vec<u8> should not fail");
}

pub fn serialize_update(update: &Update) -> Vec<u8> {
    let mut output = Vec::with_capacity(1024);
    serialize_update_into(update, &mut output);
    output
}