dsct 0.1.2

LLM-friendly packet dissector CLI
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

use std::collections::HashMap;

use packet_dissector_core::packet::Packet;

use super::helpers::{display_name, sorted_top_n};
use super::{CountEntry, ProtocolStatsCollector};
use serde::Serialize;

/// Aggregated BGP statistics.
#[derive(Debug, Clone, Serialize)]
pub struct BgpStats {
    pub total_messages: u64,
    pub message_type_distribution: Vec<CountEntry>,
}

/// Collects BGP message statistics.
#[derive(Debug)]
pub struct BgpStatsCollector {
    message_types: HashMap<String, u64>,
    total_messages: u64,
}

impl Default for BgpStatsCollector {
    fn default() -> Self {
        Self::new()
    }
}

impl BgpStatsCollector {
    pub fn new() -> Self {
        Self {
            message_types: HashMap::new(),
            total_messages: 0,
        }
    }

    pub fn process_packet(&mut self, packet: &Packet, _timestamp: Option<f64>) {
        let Some(bgp) = packet.layer_by_name("BGP") else {
            return;
        };
        let fields = packet.layer_fields(bgp);
        self.total_messages += 1;

        if let Some(name) = display_name(packet, bgp, fields, "type_name", "type") {
            *self.message_types.entry(name).or_insert(0) += 1;
        }
    }

    pub(super) fn finalize_stats(self, top_n: usize) -> BgpStats {
        BgpStats {
            total_messages: self.total_messages,
            message_type_distribution: sorted_top_n(self.message_types.into_iter(), top_n),
        }
    }
}

super::impl_protocol_stats_collector!(BgpStatsCollector, "bgp", BgpStats);