Skip to content

New experimental TLS scraper #41

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 3 commits into
base: master
Choose a base branch
from
Open

New experimental TLS scraper #41

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
13b6989
remove sqlite db
RomainBrault Mar 29, 2023
b8b7474
remove
RomainBrault Apr 3, 2023
0e0a1c8
add CSV
RomainBrault Apr 14, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions Cargo.toml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,7 @@ pretty_assertions = "1.0"

[build-dependencies]
phf_codegen = "0.11"
csv = "1.2"

[badges]
travis-ci = { repository = "rusticata/tls-parser" }
135 changes: 86 additions & 49 deletions build.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,12 +1,13 @@
extern crate phf_codegen;

use std::collections::HashMap;
use std::env;
use std::fs::File;
use std::io::BufRead;
use std::io::{BufReader, BufWriter, Write};
use std::io::{BufWriter, Write};
use std::path::Path;

fn titlecase_word(word: &str) -> String {
use csv::Reader;
use phf_codegen;

fn titlecase_word(word: &String) -> String {
word.chars()
.enumerate()
.map(|(i, c)| {
Expand All @@ -21,54 +22,82 @@ fn titlecase_word(word: &str) -> String {

fn main() {
let path_txt =
Path::new(&env::var("CARGO_MANIFEST_DIR").unwrap()).join("scripts/tls-ciphersuites.txt");
let display = path_txt.display();
let file = match File::open(&path_txt) {
// The `description` method of `io::Error` returns a string that
// describes the error
Err(why) => panic!("couldn't open {}: {}", display, why),
Ok(file) => file,
};
let f = BufReader::new(file);
Path::new(&env::var("CARGO_MANIFEST_DIR").unwrap()).join("scripts/all_ciphersuites.csv");

let path = Path::new(&env::var("OUT_DIR").unwrap()).join("codegen.rs");
let mut file = BufWriter::new(File::create(&path).unwrap());

let mut map = phf_codegen::Map::new();
for line in f.lines() {
let l = line.unwrap();
let mut v: Vec<&str> = l.split(':').collect();
let mut csv_reader = Reader::from_path(path_txt).unwrap();
for record in csv_reader.deserialize() {
let v: HashMap<String, String> = record.unwrap();

if v[5].is_empty() {
v[5] = "NULL"
if v["info.type"] != "IANATLSCipherSuite"
|| v["info.name"].contains("GOSTR")
|| v["info.name"].contains("TLS_SHA256_SHA256")
|| v["info.name"].contains("TLS_SHA384_SHA384")
|| v["info.name"].contains("_SCSV")
|| v["info.tls.parameters.encryption.algorithm"].contains("AEGIS")
{
continue;
}

let au = match v[3] {
"SRP+DSS" => String::from("Srp_Dss"),
"SRP+RSA" => String::from("Srp_Rsa"),
_ => titlecase_word(v[3]).replace('+', "_"),
let au = match v["info.tls.parameters.authentication"].as_str() {
"" => String::from("Null"),
_ => {
titlecase_word(&v["info.tls.parameters.authentication"].replace("TLS 1.3", "TLS13"))
}
};

let enc = match v[4] {
let enc = match v["info.tls.parameters.encryption.algorithm"].as_str() {
"" => String::from("Null"),
"DES40" => String::from("Des"),
"3DES" => String::from("TripleDes"),
"CHACHA20_POLY1305" => String::from("Chacha20_Poly1305"),
_ => titlecase_word(v[4]),
"CHACHA20" => String::from("Chacha20"),
_ => titlecase_word(&v["info.tls.parameters.encryption.algorithm"]),
};

let mac = String::from(
match v["info.tls.parameters.integrity.message_authentication_code"].as_str() {
"" => "Null",
"AEAD" => "Aead",
"HMAC" => match v["info.tls.parameters.integrity.pseudorandom_function"].as_str() {
"MD5" => "HmacMd5",
"SHA1" => "HmacSha1",
"SHA256" => "HmacSha256",
"SHA384" => "HmacSha384",
"SHA512" => "HmacSha512",
_ => continue,
},
_ => continue,
},
);
let mac_size = v["info.tls.parameters.integrity.message_authentication_code_size"].clone();

let mode = match v["info.tls.parameters.encryption.mode"].as_str() {
"" => String::from("Null"),
"L" => String::from("Null"),
_ => titlecase_word(&v["info.tls.parameters.encryption.mode"]),
};

let mac = String::from(match v[7] {
"NULL" => "Null",
"HMAC-MD5" => "HmacMd5",
"HMAC-SHA1" => "HmacSha1",
"HMAC-SHA256" => "HmacSha256",
"HMAC-SHA384" => "HmacSha384",
"HMAC-SHA512" => "HmacSha512",
"AEAD" => "Aead",
_ => panic!("Unknown mac {}", v[7]),
});
let key_exchange = match v["info.tls.parameters.key_exchange"].as_str() {
"" => String::from("Null"),
_ => titlecase_word(&v["info.tls.parameters.key_exchange"].replace("TLS 1.3", "TLS13")),
};

let prf = titlecase_word(v[9]);
let prf = match v["info.tls.parameters.integrity.pseudorandom_function"].as_str() {
"" => String::from("Null"),
_ => titlecase_word(
&v["info.tls.parameters.integrity.pseudorandom_function"]
.replace(" ", "")
.replace(".", "")
.replace("-", ""),
),
};
let prf_size = v["info.tls.parameters.integrity.pseudorandom_function_size"].clone();

let key = u16::from_str_radix(v[0], 16).unwrap();
let key_string = format!("{}{}", v["byte_1"], v["byte_2"]);
let key = u16::from_str_radix(key_string.as_str(), 16).unwrap();
let val = format!(
r#"TlsCipherSuite{{
name:"{}",
Expand All @@ -80,18 +109,26 @@ fn main() {
enc_size:{},
mac:TlsCipherMac::{},
mac_size:{},
prf: TlsPRF::{},
prf:TlsPRF::{},
}}"#,
v[1],
v[0],
titlecase_word(v[2]), // kx
au, // au
enc, // enc
titlecase_word(v[5]), // enc_mode
v[6], // enc_key_size
mac, // mac
v[8], // mac_size
prf, // prf
v["info.name"],
key_string,
key_exchange,
au,
enc,
mode,
if prf_size.is_empty() {
String::from("0")
} else {
prf_size
},
mac,
if mac_size.is_empty() {
String::from("0")
} else {
mac_size
},
prf, // prf
)
.clone();

Expand Down
Loading