2 releases
0.2.2 | Aug 5, 2023 |
---|---|
0.2.0 | Aug 3, 2023 |
#1158 in Database interfaces
18KB
388 lines
asn-db2
is a Rust library that can load and index ASN databases (ip2asn-v4.tsv
, ip2asn-v6.tsv
, ip2asn-combined.tsv
files) from IPtoASN website.
This crate is a rewritten fork of Jakub Pastuszek's asn-db crate.
Once loaded it can be used to lookup an IP address for matching ASN record that contains:
- network base IP address and mask (e.g. ipnet::Ipv4Net value like
1.1.1.0/24
), - assigned AS number (e.g.
13335
), - owner country code (e.g.
US
), - owner information (e.g.
CLOUDFLARENET - Cloudflare, Inc.
).
Both IPv4 and IPv6 addresses and networks are supported.
Example
Load database from ip2asn-v4.tsv
file and lookup 1.1.1.1
IP address.
use asn_db2::Ipv4Database;
use std::fs::File;
use std::io::BufReader;
let db = Ipv4Database::from_reader(BufReader::new(File::open("ip2asn-v4.tsv").unwrap())).unwrap();
let entry = db.lookup("1.1.1.1".parse().unwrap()).unwrap();
println!("{:#?}", entry);
This prints:
Entry {
subnet: 1.1.1.0/24,
as_number: 13335,
country: "US",
owner: "CLOUDFLARENET",
}
Dependencies
~2–2.9MB
~44K SLoC