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s-b-repo-rustsploit/docs/Utilities-Helpers.md
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Utilities & Helpers

Rustsploit provides several utility modules that every module developer should know:

Module Import Path Purpose
Core Utils crate::utils Target normalization, file loading, config-aware prompts, input validation
Network Utils crate::utils::network HTTP client builders, TCP/UDP connect helpers, honeypot check
Privilege Utils crate::utils::privilege Root privilege check for raw-socket modules
Creds Utils crate::modules::creds::utils Bruteforce statistics, subnet helpers, IP exclusion, scan state tracking
Config crate::config Global target state, module config, API prompt keys, results directory
Global Options crate::global_options Persistent setg options — checked by cfg_prompt_* after custom_prompts
Cred Store crate::cred_store Store/query discovered credentials. Call store_credential() from modules
Workspace crate::workspace Track hosts/services. Call track_host() / track_service() from modules
Loot crate::loot Store collected evidence. Call store_loot() from modules
Module Info crate::module_info ModuleInfo, ModuleRank, CheckResult types for info()/check()
Spool crate::spool Console output logging. Call spool::sprintln() for spool-aware output
Jobs crate::jobs Background job management via JOB_MANAGER
Export crate::export Export engagement data to JSON/CSV/summary

crate::utils — Core Utilities

load_lines(path) → Result<Vec<String>>

Reads a file line-by-line, trims whitespace, and drops empty lines. The standard way to load wordlists, username files, or any line-delimited input.

use crate::utils::load_lines;

let passwords = load_lines("passwords.txt")?;
for pw in &passwords {
    // each entry is trimmed, non-empty
}
Parameter Type Description
path impl AsRef<Path> Path to the file to read

Returns: Vec<String> of non-empty, trimmed lines. Errors if the file cannot be opened.

normalize_target(raw) → Result<String>

Comprehensive target normalization and validation. This is the single entry point for converting any user-supplied target into a consistent format.

use crate::utils::normalize_target;

let target = normalize_target(user_input)?;
// target is now in one of:
//   "192.168.1.1"          (IPv4)
//   "192.168.1.1:8080"     (IPv4 + port)
//   "[::1]"                (IPv6)
//   "[::1]:8080"           (IPv6 + port)
//   "example.com"          (hostname)
//   "192.168.1.0/24"       (CIDR)
Input Format Example
IPv4 192.168.1.1
IPv4 + port 192.168.1.1:8080
IPv6 ::1, 2001:db8::1
IPv6 + port [::1]:8080
Hostname example.com, example.com:443
URL http://example.com:8080 → extracts example.com:8080
CIDR 192.168.1.0/24, 2001:db8::/32

Security: Validates against DoS-length abuse (max 2048 chars), control characters, and path traversal patterns (.., //).

Config-Aware Prompt Wrappers (cfg_prompt_*)

These are the recommended prompts for module authors. They check ModuleConfig.custom_prompts first (populated by the API), falling back to interactive stdin when running in shell mode. This makes your module work seamlessly in both shell and API modes.

cfg_prompt_required(key, msg) → Result<String>

Required string prompt with no default. In API mode, errors if the key is missing from custom_prompts. Priority: custom_prompts > run_context target (for "target" key) > global_options > interactive stdin.

use crate::utils::cfg_prompt_required;

let community = cfg_prompt_required("community", "SNMP community string").await?;
Parameter Type Description
key &str Lookup key in ModuleConfig.custom_prompts
msg &str Prompt message shown to user in shell mode

Errors in API mode if key is missing (required field).

cfg_prompt_yes_no(key, msg, default_yes) → Result<bool>

Boolean prompt. Accepts y/yes/true/1 and n/no/false/0.

use crate::utils::cfg_prompt_yes_no;

let verbose = cfg_prompt_yes_no("verbose", "Enable verbose output?", false)?;
Parameter Type Description
key &str Lookup key in ModuleConfig.custom_prompts
msg &str Prompt message shown to user in shell mode
default_yes bool Default when input is empty or key absent in API mode

cfg_prompt_existing_file(key, msg) → Result<String>

Prompts for a file path. Validates the file exists, rejects path traversal (..), symlinks, and control characters.

use crate::utils::cfg_prompt_existing_file;

let wordlist = cfg_prompt_existing_file("password_wordlist", "Password wordlist file")?;
let lines = load_lines(&wordlist)?;
Parameter Type Description
key &str Prompt key for API mode
msg &str Interactive prompt message

Errors in API mode if key is missing (required field).

cfg_prompt_int_range(key, msg, default, min, max) → Result<i64>

Integer prompt with range validation.

use crate::utils::cfg_prompt_int_range;

let threads = cfg_prompt_int_range("threads", "Number of threads", 10, 1, 100)?;
let delay = cfg_prompt_int_range("delay_ms", "Delay between attempts (ms)", 50, 0, 60000)?;
Parameter Type Description
key &str Prompt key
msg &str Interactive prompt message
default i64 Default value
min i64 Minimum allowed value
max i64 Maximum allowed value

cfg_prompt_default(key, msg, default) → Result<String>

Generic string prompt with a default value.

use crate::utils::cfg_prompt_default;

let method = cfg_prompt_default("http_method", "HTTP method", "GET")?;
Parameter Type Description
key &str Prompt key
msg &str Interactive prompt message
default &str Default value when empty

cfg_prompt_port(key, msg, default) → Result<u16>

Port number prompt. Validates range 1–65535.

use crate::utils::cfg_prompt_port;

let port = cfg_prompt_port("port", "Target port", 22)?;
Parameter Type Description
key &str Prompt key
msg &str Interactive prompt message
default u16 Default port number

cfg_prompt_output_file(key, msg, default) → Result<String>

Output filename prompt. Forces basename only — strips any directory path to prevent traversal. Rejects hidden files (starting with .) and filenames over 255 chars.

use crate::utils::cfg_prompt_output_file;

let output = cfg_prompt_output_file("output_file", "Output file", "results.txt")?;
// output is guaranteed to be a safe basename like "results.txt"

cfg_prompt_wordlist(key, msg) → Result<String>

Wordlist file prompt. Validates the file exists, rejects path traversal and unsafe paths (same security as cfg_prompt_existing_file). Priority: custom_prompts > global_options > interactive stdin.

use crate::utils::cfg_prompt_wordlist;

let wordlist = cfg_prompt_wordlist("wordlist", "Path to wordlist file").await?;
let lines = load_lines(&wordlist)?;
Parameter Type Description
key &str Prompt key for API mode
msg &str Interactive prompt message

Errors in API mode if key is missing (required field). Also errors if the file does not exist.

Complete Module Integration Example

Here's a typical module using all the core utils together:

use crate::utils::{
    load_lines, normalize_target,
    cfg_prompt_required, cfg_prompt_yes_no, cfg_prompt_existing_file,
    cfg_prompt_int_range, cfg_prompt_default, cfg_prompt_port,
    cfg_prompt_output_file, cfg_prompt_wordlist,
};

pub async fn run(target: &str) -> anyhow::Result<()> {
    let target = normalize_target(target)?;

    // Gather config — works in both shell and API mode
    let port       = cfg_prompt_port("port", "Target port", 22)?;
    let user_file  = cfg_prompt_existing_file("user_wordlist", "Username wordlist")?;
    let pass_file  = cfg_prompt_existing_file("pass_wordlist", "Password wordlist")?;
    let threads    = cfg_prompt_int_range("threads", "Threads", 10, 1, 100)? as usize;
    let delay      = cfg_prompt_int_range("delay_ms", "Delay (ms)", 50, 0, 60000)? as u64;
    let verbose    = cfg_prompt_yes_no("verbose", "Verbose output?", false)?;
    let output     = cfg_prompt_output_file("output_file", "Output file", "results.txt")?;

    // Load wordlists
    let users = load_lines(&user_file)?;
    let passwords = load_lines(&pass_file)?;

    println!("[*] Targeting {} with {} users × {} passwords", target, users.len(), passwords.len());
    // ... bruteforce logic ...
    Ok(())
}

crate::modules::creds::utils — Credential Module Utilities

Import path:

use crate::modules::creds::utils::{
    BruteforceStats, is_subnet_target, parse_subnet, subnet_host_count,
    generate_random_public_ip, is_ip_checked, mark_ip_checked, parse_exclusions,
};

BruteforceStats

Thread-safe statistics tracker for bruteforce modules. Uses atomics for counters and a Mutex<HashMap> for error categorization. Create one per module run and share via Arc.

use std::sync::Arc;
use crate::modules::creds::utils::BruteforceStats;

let stats = Arc::new(BruteforceStats::new());

// In each worker task:
let stats = Arc::clone(&stats);
tokio::spawn(async move {
    match attempt_login(&host, &user, &pass).await {
        Ok(true) => stats.record_success(),
        Ok(false) => stats.record_failure(),
        Err(e) => stats.record_error(format!("{}", e)).await,
    }

    // Show live progress (prints inline with \r)
    stats.print_progress();
});

// After all tasks complete:
stats.print_final().await;

Methods

Method Async Description
BruteforceStats::new() No Create a new stats tracker (starts the timer)
.record_success() No Increment total + successful counters
.record_failure() No Increment total + failed counters
.record_error(msg) Yes Increment total + error counters, log error message
.record_retry() No Increment retry counter
.print_progress() No Print inline progress bar (\r overwrite)
.print_final() Yes Print full statistics summary with top 5 errors

is_subnet_target(target) → bool

Check if a target string is CIDR notation (e.g., 192.168.8.0/21). Use this to branch between single-host and subnet-scan logic.

use crate::modules::creds::utils::is_subnet_target;

if is_subnet_target(&target) {
    // Iterate subnet
} else {
    // Single host
}

parse_subnet(target) → Result<IpNetwork>

Parse a CIDR string into an ipnetwork::IpNetwork. Does NOT allocate a Vec — callers iterate lazily with .iter(), making it safe for any prefix size (/0 through /32).

use crate::modules::creds::utils::parse_subnet;

let network = parse_subnet("192.168.1.0/24")?;
for ip in network.iter() {
    println!("Scanning {}", ip);
}

subnet_host_count(net) → u128

Returns the number of host IPs in a network. Useful for progress display and ETA calculations.

use crate::modules::creds::utils::{parse_subnet, subnet_host_count};

let net = parse_subnet("10.0.0.0/8")?;
println!("Scanning {} hosts", subnet_host_count(&net));
// → "Scanning 16777216 hosts"

generate_random_public_ip(exclusions) → IpAddr

Generates a random IPv4 address that is not in any excluded range. Automatically skips 10.x.x.x, 127.x.x.x, and 0.x.x.x in addition to the provided exclusion list. Used by mass-scanning modules (Camxploit, etc.).

use crate::modules::creds::utils::{generate_random_public_ip, parse_exclusions};

let exclusions = parse_exclusions(&[
    "10.0.0.0/8", "172.16.0.0/12", "192.168.0.0/16",    // Private
    "100.64.0.0/10",                                       // CGNAT
    "224.0.0.0/4",                                          // Multicast
]);

let ip = generate_random_public_ip(&exclusions);
println!("Random target: {}", ip);

parse_exclusions(cidrs) → Vec<IpNetwork>

Parses an array of CIDR strings into IpNetwork objects for use with generate_random_public_ip. Invalid CIDRs are silently skipped.

use crate::modules::creds::utils::parse_exclusions;

let excluded = parse_exclusions(&["10.0.0.0/8", "192.168.0.0/16", "not-valid"]);
// excluded.len() == 2 (invalid entry silently dropped)

is_ip_checked(ip, state_file) → bool / mark_ip_checked(ip, state_file)

Persistent scan-state tracking. Prevents re-scanning the same IP across multiple runs by writing checked: <ip> lines to a state file.

use crate::modules::creds::utils::{is_ip_checked, mark_ip_checked};

let state_file = "mqtt_cidr_results.txt";

for ip in network.iter() {
    if is_ip_checked(&ip, state_file).await {
        continue; // Already scanned
    }

    // ... scan the IP ...

    mark_ip_checked(&ip, state_file).await;
}
Function Async Description
is_ip_checked(ip, state_file) Yes Returns true if IP was previously marked. Creates the state file if missing.
mark_ip_checked(ip, state_file) Yes Appends checked: <ip> to the state file.

Note: Both functions accept any type implementing ToString for the IP parameter.

Complete Credential Module Example

Putting both utility modules together in a real bruteforce module:

use std::sync::Arc;
use crate::utils::{
    load_lines, normalize_target,
    cfg_prompt_port, cfg_prompt_existing_file,
    cfg_prompt_int_range, cfg_prompt_yes_no, cfg_prompt_output_file,
};
use crate::modules::creds::utils::{
    BruteforceStats, is_subnet_target, parse_subnet, subnet_host_count,
    generate_random_public_ip, is_ip_checked, mark_ip_checked, parse_exclusions,
};

pub async fn run(target: &str) -> anyhow::Result<()> {
    let target = normalize_target(target)?;
    let port = cfg_prompt_port("port", "Target port", 1883)?;
    let user_file = cfg_prompt_existing_file("user_wordlist", "Username wordlist")?;
    let pass_file = cfg_prompt_existing_file("pass_wordlist", "Password wordlist")?;
    let threads = cfg_prompt_int_range("threads", "Threads", 10, 1, 200)? as usize;
    let verbose = cfg_prompt_yes_no("verbose", "Verbose?", false)?;
    let output = cfg_prompt_output_file("output_file", "Output file", "results.txt")?;

    let users = load_lines(&user_file)?;
    let passwords = load_lines(&pass_file)?;
    let stats = Arc::new(BruteforceStats::new());

    if is_subnet_target(&target) {
        let network = parse_subnet(&target)?;
        println!("[*] Subnet scan: {} hosts", subnet_host_count(&network));
        for ip in network.iter() {
            if is_ip_checked(&ip, &output).await { continue; }
            // ... bruteforce ip ...
            mark_ip_checked(&ip, &output).await;
        }
    } else {
        // ... single host bruteforce ...
    }

    stats.print_final().await;
    Ok(())
}

crate::config — Framework Configuration

Import path:

use crate::config::{
    GLOBAL_CONFIG, GlobalConfig, TargetConfig,
    ModuleConfig, get_module_config, set_module_config, clear_module_config,
    results_dir,
};

GLOBAL_CONFIG (static GlobalConfig)

Thread-safe singleton that holds the current target. Set by the shell (set target) or CLI (--target). Module code reads it but rarely needs to write to it.

use crate::config::GLOBAL_CONFIG;

// Check if a target is set
if !GLOBAL_CONFIG.has_target() {
    println!("No target set!");
    return Ok(());
}

// Read the target as a string
let target = GLOBAL_CONFIG.get_target().unwrap();
println!("Targeting: {}", target);

GlobalConfig Methods

Method Returns Description
.set_target(target) Result<()> Set global target (IP, hostname, or CIDR). Validates input.
.get_target() Option<String> Get the target as a display string
.get_single_target_ip() Result<String> Get single IP; for subnets returns the network address
.has_target() bool Check if any target is set
.is_subnet() bool true if the target is a CIDR subnet
.get_target_subnet() Option<IpNetwork> Returns the IpNetwork if target is a subnet
.get_target_size() Option<u64> Number of IPs (1 for single, 2^(32-prefix) for subnets)
.clear_target() () Unset the target

TargetConfig Enum

use crate::config::TargetConfig;

pub enum TargetConfig {
    Single(String),         // Single IP or hostname
    Subnet(IpNetwork),      // CIDR subnet
}

ModuleConfig & API Prompt Keys

ModuleConfig bridges modules to the API. When the API server receives a /api/run request, it populates a ModuleConfig with the JSON "prompts" object. The cfg_prompt_* functions in src/utils/prompt.rs read these values instead of prompting stdin.

Struct Fields

pub struct ModuleConfig {
    pub port: Option<u16>,
    pub username_wordlist: Option<String>,
    pub password_wordlist: Option<String>,
    pub concurrency: Option<usize>,
    pub stop_on_success: Option<bool>,
    pub save_results: Option<bool>,
    pub output_file: Option<String>,
    pub verbose: Option<bool>,
    pub combo_mode: Option<bool>,
    pub custom_prompts: HashMap<String, String>,  // ← cfg_prompt_* reads from here
    pub api_mode: bool,                           // ← prevents stdin fallback
}

Helper Functions

Function Description
get_module_config() Get a clone of the current config (safe to call from any module)
set_module_config(config) Set the config (called by API server before module execution)
clear_module_config() Reset to defaults (called after module execution) 
use crate::config::get_module_config;

let config = get_module_config();
if config.api_mode {
    // Running via API — don't expect stdin
}
if let Some(port) = config.port {
    // Use pre-configured port
}

Standardized API Prompt Keys

When building API requests, use these standardized keys in the "prompts" JSON object:

Common keys (most modules):

Key Type Description
port u16 Target service port
timeout int Connection timeout (seconds or ms)
verbose y/n Verbose output
save_results y/n Save results to file
output_file string Output filename
concurrency int Concurrent threads/tasks
threads int Alias for concurrency
wordlist path Path to wordlist file
target_file path File containing targets
mode string Operation mode (1, 2, 3, etc.)

Scanner-specific keys (see full list in config.rs doc comments):

  • Port Scanner: port_range, scan_method, show_only_open
  • Dir Brute: scan_mode, delay_ms, random_agent, use_https
  • Sequential Fuzzer: min_length, max_length, charset, encoding
  • API Endpoint Scanner: output_dir, use_spoofing, enable_delete, modules

results_dir() → PathBuf

Returns ~/.rustsploit/results/, creating it if needed. Use this when saving module output in API mode.

use crate::config::results_dir;

let out_path = results_dir().join("scan_output.txt");
std::fs::write(&out_path, results)?;

Constants

Constant Value Purpose
MAX_TARGET_LENGTH 2048 Maximum target string length
MAX_MODULE_PATH_LENGTH 512 Maximum module path length
MAX_COMMAND_LENGTH 8192 Maximum command/input length
MAX_PATH_LENGTH 4096 Maximum file path length
MAX_HOSTNAME_LENGTH 253 Maximum hostname length (config.rs)

crate::utils::network — Network Utilities

Import path:

use crate::utils::network::{
    build_http_client, build_http_client_with, HttpClientOpts,
    tcp_connect_addr, tcp_connect_str, tcp_connect, tcp_port_open,
    blocking_tcp_connect, udp_bind, quick_honeypot_check,
};

build_http_client(timeout) → Result<Client>

Creates a standard reqwest::Client with sensible defaults (danger-accept invalid certs, no redirect limit). Use this instead of hand-rolling reqwest::Client::builder().

use crate::utils::network::build_http_client;

let client = build_http_client(Duration::from_secs(10))?;
let resp = client.get(&url).send().await?;

build_http_client_with(timeout, opts) → Result<Client>

Extended HTTP client builder with additional options.

use crate::utils::network::{build_http_client_with, HttpClientOpts};

let client = build_http_client_with(Duration::from_secs(10), HttpClientOpts {
    cookie_store: true,
    follow_redirects: true,
    user_agent: Some("Mozilla/5.0".to_string()),
    ..HttpClientOpts::default()
})?;

HttpClientOpts Fields

Field Type Default Description
cookie_store bool false Enable cookie jar
follow_redirects bool false Follow HTTP redirects
user_agent Option<String> None Custom User-Agent header
default_headers Option<HeaderMap> None Default headers for all requests

tcp_connect_addr(addr, timeout) → io::Result<TcpStream>

Async TCP connection to a SocketAddr with timeout and optional source port binding. Preferred over raw TcpStream::connect — respects global source port setting.

use crate::utils::network::tcp_connect_addr;

let stream = tcp_connect_addr(addr, Duration::from_secs(5)).await?;

tcp_connect_str(addr_str, timeout) → io::Result<TcpStream>

Async TCP connection from a "host:port" string. Resolves DNS and connects.

tcp_port_open(ip, port, timeout) → bool

Quick async check if a TCP port is open.

blocking_tcp_connect(addr, timeout) → io::Result<TcpStream>

Synchronous TCP connection for use in spawn_blocking contexts.

udp_bind(target_ip) → io::Result<UdpSocket>

Binds a UDP socket to the appropriate address family (IPv4 or IPv6) for the target.

quick_honeypot_check(ip) → bool

Fast honeypot detection — probes common ports and returns true if 11+ respond (likely honeypot).

crate::utils::privilege — Privilege Checks

require_root(context) → Result<()>

Call at the top of run() in modules that need raw sockets (ICMP, SYN scan, packet crafting). Returns a clean error message if the current euid is not root.

use crate::utils::privilege::require_root;

pub async fn run(target: &str) -> Result<()> {
    require_root("ICMP raw socket")?;
    // ... raw socket operations ...
}

Used by: DoS modules (icmp_flood, syn_ack_flood, null_syn_exhaustion, dns_amplification, etc.), ping_sweep scanner.

Extending Utils

Add new reusable helpers to src/utils/ (the appropriate submodule: prompt.rs, sanitize.rs, target.rs, network.rs, or modules.rs), creds/utils.rs, or config.rs rather than copy-pasting into individual modules. Common candidates:

  • HTTP header templates
  • Response fingerprinting helpers
  • Common error formatters
  • Credential loaders with streaming support
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