rusthound 1.1.69

Active Directory data collector for Bloodhound written in rust.
Documentation 
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use log::{info,debug};
use colored::Colorize;

use trust_dns_resolver::TokioAsyncResolver;
use trust_dns_resolver::config::*;

use std::net::{IpAddr, Ipv4Addr, SocketAddr};
use std::collections::HashMap;
use std::time::Duration;

/// Function to resolve all IP address from the LDAP FQDN vector
/// <https://docs.rs/trust-dns-resolver/latest/trust_dns_resolver/index.html>
/// <https://github.com/shadowsocks/shadowsocks-rust/blob/master/crates/shadowsocks-service/src/config.rs>
pub async fn resolving_all_fqdn(
   dns_tcp: bool,
   name_server: &String,
   fqdn_ip: &mut HashMap<String, String>,
   vec_computer: &Vec<serde_json::value::Value>
) {
   info!("Resolving FQDN to IP address started...");
   for value in fqdn_ip.to_owned()
   {
      for i in 0..vec_computer.len()
      {
          if (vec_computer[i]["Properties"]["name"].as_str().unwrap().to_string() == value.0.to_owned().to_string()) && (vec_computer[i]["Properties"]["enabled"] == true) {
            debug!("Trying to resolve FQDN: {}",value.0.to_string());
            // Resolve FQDN to IP address
            let address = resolver(value.0.to_string(),dns_tcp,name_server).await;
            if !address.contains("Not found"){
               fqdn_ip.insert(value.0.to_owned().to_string(),address.to_owned().to_string());
               info!("IP address for {}: {}",&value.0.to_string().yellow().bold(),&address.yellow().bold());
            }
          }
         continue
      }
   }
   info!("Resolving FQDN to IP address finished!");
}

/// Asynchron function to resolve IP address from the ldap FQDN
pub async fn resolver(
   fqdn: String,
   dns_tcp: bool, 
   name_server: &String,
) -> String
{
   // Get configuration and options for resolver
   let (c,o) = make_resolver_conf(dns_tcp,name_server);

   // Construct a new Resolver with default configuration options
   let resolver = TokioAsyncResolver::tokio(c,o).unwrap();

   // Resolver
   let result = resolver.lookup_ip(fqdn);

   match result.await{
      Ok(response) => {
         let address = response.iter().next().expect("no addresses returned!");
         if address.is_ipv4() {
            return address.to_string()
         }
      }
      Err(_err) => {},
   };
   return "Not found".to_string()
}

/// Function to prepare resolver configuration
pub fn make_resolver_conf(
   dns_tcp: bool, 
   name_server: &String,
) -> (ResolverConfig,ResolverOpts) {
   let mut c = ResolverConfig::new();
   let mut socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 53);
   let mut dns_protocol = Protocol::Udp;
   if dns_tcp == true
   {
      dns_protocol = Protocol::Tcp;
   }
   if !name_server.contains("127.0.0.1") {
      let address = name_server.parse::<IpAddr>().unwrap_or(std::net::IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)));
      socket.set_ip(address);
   }

   debug!("Protocol DNS: {:?}",&dns_protocol);
   debug!("Name server DNS: {:?}",name_server.parse::<Ipv4Addr>());

   c.add_name_server(NameServerConfig {
      socket_addr: socket,
      protocol: dns_protocol,
      tls_dns_name: None,
      trust_nx_responses: false,
      bind_addr: None,
   });

   let mut o = ResolverOpts::default();
   o.timeout = Duration::new(0, 10);
   return (c,o)
}