diff --git a/rust/src/applayer.rs b/rust/src/applayer.rs
index 255fa1593c2..97db321e224 100644
--- a/rust/src/applayer.rs
+++ b/rust/src/applayer.rs
@@ -15,7 +15,7 @@
  * 02110-1301, USA.
  */
 
-//! Parser registration functions and common interface
+//! Parser registration functions and common interface module.
 
 use std;
 use crate::core::{self,DetectEngineState,Flow,AppLayerEventType,AppProto,Direction};
diff --git a/rust/src/applayertemplate/mod.rs b/rust/src/applayertemplate/mod.rs
index 63f4ed139e8..e22bd68e391 100644
--- a/rust/src/applayertemplate/mod.rs
+++ b/rust/src/applayertemplate/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! Application layer template parser and logger module.
+
 mod parser;
 pub mod template;
 /* TEMPLATE_START_REMOVE */
diff --git a/rust/src/asn1/mod.rs b/rust/src/asn1/mod.rs
index 7c52b4cb856..4b77b0ca28d 100644
--- a/rust/src/asn1/mod.rs
+++ b/rust/src/asn1/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! ASN.1 parser module.
+
 use der_parser::ber::{parse_ber_recursive, BerObject, BerObjectContent, Tag};
 use nom7::Err;
 use std::convert::TryFrom;
diff --git a/rust/src/bittorrent_dht/mod.rs b/rust/src/bittorrent_dht/mod.rs
index 0c79ecc92fa..9e0d033d300 100644
--- a/rust/src/bittorrent_dht/mod.rs
+++ b/rust/src/bittorrent_dht/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! BitTorrent DHT application layer, logger and parser module.
+
 pub mod bittorrent_dht;
 pub mod logger;
 pub mod parser;
diff --git a/rust/src/common.rs b/rust/src/common.rs
index a8880b2c4c0..1d10bbe443d 100644
--- a/rust/src/common.rs
+++ b/rust/src/common.rs
@@ -1,3 +1,5 @@
+//! Utility library module for commonly used strings, hexadecimals and other elements.
+
 use super::build_slice;
 use crate::jsonbuilder::HEX;
 use std::ffi::CString;
diff --git a/rust/src/conf.rs b/rust/src/conf.rs
index b176d5f71f2..50acf6cae89 100644
--- a/rust/src/conf.rs
+++ b/rust/src/conf.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! Module for retrieving configuration details.
+
 use std::os::raw::c_char;
 use std::os::raw::c_void;
 use std::os::raw::c_int;
diff --git a/rust/src/core.rs b/rust/src/core.rs
index 5b0a67afc0f..abb27ea578f 100644
--- a/rust/src/core.rs
+++ b/rust/src/core.rs
@@ -15,7 +15,7 @@
  * 02110-1301, USA.
  */
 
-// This file exposes items from the core "C" code to Rust.
+//! This module exposes items from the core "C" code to Rust.
 
 use std;
 use crate::filecontainer::*;
diff --git a/rust/src/dcerpc/mod.rs b/rust/src/dcerpc/mod.rs
index 7765e044ca8..800d2ade731 100644
--- a/rust/src/dcerpc/mod.rs
+++ b/rust/src/dcerpc/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! DCE/RPC protocol parser, logger and detection module.
+
 pub mod dcerpc;
 pub mod dcerpc_udp;
 pub mod parser;
diff --git a/rust/src/detect/mod.rs b/rust/src/detect/mod.rs
index 84bd28e2863..41c7ff2455b 100644
--- a/rust/src/detect/mod.rs
+++ b/rust/src/detect/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! Module for rule parsing.
+
 pub mod byte_math;
 pub mod error;
 pub mod iprep;
diff --git a/rust/src/dhcp/mod.rs b/rust/src/dhcp/mod.rs
index bc859d7b54b..fd783d961ff 100644
--- a/rust/src/dhcp/mod.rs
+++ b/rust/src/dhcp/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! DHCP parser, detection and logger module.
+
 pub mod dhcp;
 pub mod parser;
 pub mod logger;
diff --git a/rust/src/dns/mod.rs b/rust/src/dns/mod.rs
index 054bb50b259..b0ca00ffc9d 100644
--- a/rust/src/dns/mod.rs
+++ b/rust/src/dns/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! DNS parser, detection, logger and application layer module.
+
 pub mod detect;
 pub mod dns;
 pub mod log;
diff --git a/rust/src/ffi/mod.rs b/rust/src/ffi/mod.rs
index ff9f7d1642c..e97e6c98c63 100644
--- a/rust/src/ffi/mod.rs
+++ b/rust/src/ffi/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! Module that exposes C bindings to the Suricata Rust library.
+
 pub mod hashing;
 pub mod base64;
 pub mod strings;
diff --git a/rust/src/filecontainer.rs b/rust/src/filecontainer.rs
index c51daaa8f13..3a8bde5f7d5 100644
--- a/rust/src/filecontainer.rs
+++ b/rust/src/filecontainer.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! This module handles file container operations (open, append, close).
+
 use std::ptr;
 use std::os::raw::{c_void};
 
diff --git a/rust/src/filetracker.rs b/rust/src/filetracker.rs
index ad1c4c0c3a2..3ae65eecb55 100644
--- a/rust/src/filetracker.rs
+++ b/rust/src/filetracker.rs
@@ -15,18 +15,17 @@
  * 02110-1301, USA.
  */
 
-/**
- *  \file
- *  \author Victor Julien <victor@inliniac.net>
- *
- * Tracks chunk based file transfers. Chunks may be transferred out
- * of order, but cannot be transferred in parallel. So only one
- * chunk at a time.
- *
- * GAP handling. If a data gap is encountered, the file is truncated
- * and new data is no longer pushed down to the lower level APIs.
- * The tracker does continue to follow the file.
- */
+//! Gap handling and Chunk-based file transfer tracker module.
+//!
+//! GAP handling. If a data gap is encountered, the file is truncated
+//! and new data is no longer pushed down to the lower level APIs.
+//! The tracker does continue to follow the file
+//
+//! Tracks chunk based file transfers. Chunks may be transferred out
+//! of order, but cannot be transferred in parallel. So only one
+//! chunk at a time.
+//!
+//! Author: Victor Julien <victor@inliniac.net>
 
 use crate::core::*;
 use std::collections::HashMap;
diff --git a/rust/src/frames.rs b/rust/src/frames.rs
index 3311a4b36f4..3a45d014b47 100644
--- a/rust/src/frames.rs
+++ b/rust/src/frames.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! Module for bindings to the Suricata C frame API.
+
 use crate::applayer::StreamSlice;
 use crate::core::Flow;
 #[cfg(not(test))]
diff --git a/rust/src/ftp/mod.rs b/rust/src/ftp/mod.rs
index 1a60ca470c3..3839c9661e0 100644
--- a/rust/src/ftp/mod.rs
+++ b/rust/src/ftp/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! FTP parser and application layer module.
+
 use nom7::bytes::complete::{tag, take_until};
 use nom7::character::complete::{digit1, multispace0};
 use nom7::combinator::{complete, map_res, opt, verify};
diff --git a/rust/src/http2/mod.rs b/rust/src/http2/mod.rs
index f1d6f30bb27..910e968105d 100644
--- a/rust/src/http2/mod.rs
+++ b/rust/src/http2/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! HTTP/2 parser, detection, logger and application layer module.
+
 #![allow(clippy::result_unit_err)]
 
 mod decompression;
diff --git a/rust/src/ike/mod.rs b/rust/src/ike/mod.rs
index 4f8114d2a0a..366688eae2e 100644
--- a/rust/src/ike/mod.rs
+++ b/rust/src/ike/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! IKE parser, detection, logger and application layer module.
+
 // written by Pierre Chifflier  <chifflier@wzdftpd.net>
 
 extern crate ipsec_parser;
diff --git a/rust/src/jsonbuilder.rs b/rust/src/jsonbuilder.rs
index c1f466563be..82be09953c7 100644
--- a/rust/src/jsonbuilder.rs
+++ b/rust/src/jsonbuilder.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+ //! Module for building JSON documents.
+
 #![allow(clippy::missing_safety_doc)]
 
 use std::cmp::max;
diff --git a/rust/src/kerberos.rs b/rust/src/kerberos.rs
index 0a5e9517abf..e7c51cc2f28 100644
--- a/rust/src/kerberos.rs
+++ b/rust/src/kerberos.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! Kerberos parser wrapper module.
+
 use nom7::IResult;
 use nom7::error::{ErrorKind, ParseError};
 use nom7::number::streaming::le_u16;
diff --git a/rust/src/krb/mod.rs b/rust/src/krb/mod.rs
index c8be867a093..ca6237d7bb6 100644
--- a/rust/src/krb/mod.rs
+++ b/rust/src/krb/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! Kerberos-v5 application layer, logger and detection module.
+
 // written by Pierre Chifflier  <chifflier@wzdftpd.net>
 
 pub mod krb5;
diff --git a/rust/src/lib.rs b/rust/src/lib.rs
index 4c238538273..da285963778 100644
--- a/rust/src/lib.rs
+++ b/rust/src/lib.rs
@@ -15,6 +15,11 @@
  * 02110-1301, USA.
  */
 
+//! Suricata is a network intrusion prevention and monitoring engine.
+//!
+//! Suricata is a hybrid C and Rust application. What is found here are
+//! the components written in Rust.
+
 #![cfg_attr(feature = "strict", deny(warnings))]
 
 // Allow these patterns as its a style we like.
@@ -70,7 +75,6 @@ pub mod conf;
 pub mod jsonbuilder;
 #[macro_use]
 pub mod applayer;
-/// cbindgen:ignore
 pub mod frames;
 pub mod filecontainer;
 pub mod filetracker;
diff --git a/rust/src/log.rs b/rust/src/log.rs
index 05344b6e6cd..744169a9703 100644
--- a/rust/src/log.rs
+++ b/rust/src/log.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! Logging utility module.
+
 use std;
 use std::ffi::CString;
 use std::path::Path;
diff --git a/rust/src/lua.rs b/rust/src/lua.rs
index 87cb8b3acf9..4fce2a82494 100644
--- a/rust/src/lua.rs
+++ b/rust/src/lua.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! Lua wrapper module.
+
 use std::os::raw::c_char;
 use std::os::raw::c_int;
 use std::os::raw::c_long;
diff --git a/rust/src/lzma.rs b/rust/src/lzma.rs
index b16c4e7b525..e10d803a6e2 100644
--- a/rust/src/lzma.rs
+++ b/rust/src/lzma.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! lzma decompression utility module.
+
 use lzma_rs::decompress::{Options, Stream};
 use lzma_rs::error::Error;
 use std::io::{Cursor, Write};
diff --git a/rust/src/mime/mod.rs b/rust/src/mime/mod.rs
index 399500db9ac..6f4a9bc2130 100644
--- a/rust/src/mime/mod.rs
+++ b/rust/src/mime/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! MIME protocol parser module.
+
 use crate::common::nom7::take_until_and_consume;
 use nom7::branch::alt;
 use nom7::bytes::streaming::{tag, take_until, take_while};
diff --git a/rust/src/modbus/mod.rs b/rust/src/modbus/mod.rs
index 50e65939047..6f3c434a044 100644
--- a/rust/src/modbus/mod.rs
+++ b/rust/src/modbus/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! Modbus application layer, logger, parser and detection module.
+
 pub mod detect;
 pub mod log;
 pub mod modbus;
diff --git a/rust/src/mqtt/mod.rs b/rust/src/mqtt/mod.rs
index c0225ecec31..aefcc33e092 100644
--- a/rust/src/mqtt/mod.rs
+++ b/rust/src/mqtt/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! MQTT application layer, detection, logger and parser module.
+
 pub mod detect;
 pub mod logger;
 pub mod mqtt;
diff --git a/rust/src/nfs/mod.rs b/rust/src/nfs/mod.rs
index 17cfc724d3e..2f6fe84df91 100644
--- a/rust/src/nfs/mod.rs
+++ b/rust/src/nfs/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! NFS application layer, parser, logger module.
+
 pub mod types;
 pub mod rpc_records;
 pub mod nfs_records;
diff --git a/rust/src/ntp/mod.rs b/rust/src/ntp/mod.rs
index 35f1a70f2e1..30ff834304c 100644
--- a/rust/src/ntp/mod.rs
+++ b/rust/src/ntp/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! NTP application layer and parser module.
+
 // written by Pierre Chifflier  <chifflier@wzdftpd.net>
 
 pub mod ntp;
diff --git a/rust/src/pgsql/mod.rs b/rust/src/pgsql/mod.rs
index 054fd488659..a4c79c03192 100644
--- a/rust/src/pgsql/mod.rs
+++ b/rust/src/pgsql/mod.rs
@@ -15,7 +15,7 @@
  * 02110-1301, USA.
  */
 
-//! PostgreSQL parser and application layer
+//! PostgreSQL parser, logger and application layer module.
 //!
 //! written by Juliana Fajardini <jufajardini@oisf.net>
 
diff --git a/rust/src/plugin.rs b/rust/src/plugin.rs
index f9daef7de43..ad214aaa47f 100644
--- a/rust/src/plugin.rs
+++ b/rust/src/plugin.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! Plugin utility module.
+
 pub fn init() {
     unsafe {
         let context = super::core::SCGetContext();
diff --git a/rust/src/quic/mod.rs b/rust/src/quic/mod.rs
index 91693059dcc..8a8f1bbd7fc 100644
--- a/rust/src/quic/mod.rs
+++ b/rust/src/quic/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! QUIC application layer, parser, detection and logger module.
+
 mod crypto;
 mod cyu;
 pub mod detect;
diff --git a/rust/src/rdp/mod.rs b/rust/src/rdp/mod.rs
index ddfc511d4fa..dc83db82994 100644
--- a/rust/src/rdp/mod.rs
+++ b/rust/src/rdp/mod.rs
@@ -15,7 +15,7 @@
  * 02110-1301, USA.
  */
 
-//! RDP parser and application layer
+//! RDP parser, logger and application layer module.
 //!
 //! written by Zach Kelly <zach.kelly@lmco.com>
 
diff --git a/rust/src/rfb/mod.rs b/rust/src/rfb/mod.rs
index 68d37ec8a0e..050ee7709b7 100644
--- a/rust/src/rfb/mod.rs
+++ b/rust/src/rfb/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! RFB protocol parser, logger and detection module.
+
 // Author: Frank Honza <frank.honza@dcso.de>
 
 pub mod detect;
diff --git a/rust/src/sip/mod.rs b/rust/src/sip/mod.rs
index 33eec45ccdb..de63aaa5201 100755
--- a/rust/src/sip/mod.rs
+++ b/rust/src/sip/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! SIP protocol parser, detection and logger module.
+
 // written by Giuseppe Longo <giuseppe@glongo.it>
 
 pub mod detect;
diff --git a/rust/src/smb/mod.rs b/rust/src/smb/mod.rs
index ca1eb7771fd..5b74f1ca4e0 100644
--- a/rust/src/smb/mod.rs
+++ b/rust/src/smb/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! SMB application layer, detection, logger and parser module.
+
 pub mod error;
 pub mod smb_records;
 pub mod smb_status;
diff --git a/rust/src/snmp/mod.rs b/rust/src/snmp/mod.rs
index 3bb90ab2f35..7c6ceb35884 100644
--- a/rust/src/snmp/mod.rs
+++ b/rust/src/snmp/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! SNMP application layer, parser, detection and logger module.
+
 // written by Pierre Chifflier  <chifflier@wzdftpd.net>
 
 extern crate snmp_parser;
diff --git a/rust/src/ssh/mod.rs b/rust/src/ssh/mod.rs
index 12efccd0a55..ff506e9439a 100644
--- a/rust/src/ssh/mod.rs
+++ b/rust/src/ssh/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! SSH application layer, logger, detection and parser module.
+
 pub mod detect;
 pub mod logger;
 mod parser;
diff --git a/rust/src/telnet/mod.rs b/rust/src/telnet/mod.rs
index 2dfa97a2f1b..38685c79544 100644
--- a/rust/src/telnet/mod.rs
+++ b/rust/src/telnet/mod.rs
@@ -15,5 +15,7 @@
  * 02110-1301, USA.
  */
 
+//! Telnet application layer and parser module.
+
 pub mod telnet;
 mod parser;
diff --git a/rust/src/tftp/mod.rs b/rust/src/tftp/mod.rs
index 7c3d292a00f..6ae29ac9014 100644
--- a/rust/src/tftp/mod.rs
+++ b/rust/src/tftp/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! TFTP parser, logger and application layer module.
+
 // written by Clément Galland <clement.galland@epita.fr>
 
 pub mod tftp;
diff --git a/rust/src/util.rs b/rust/src/util.rs
index a0933689164..d7109464f77 100644
--- a/rust/src/util.rs
+++ b/rust/src/util.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! Utility module.
+
 use std::ffi::CStr;
 use std::os::raw::c_char;
 
diff --git a/rust/src/x509/mod.rs b/rust/src/x509/mod.rs
index fa9706e9021..c87928cf17a 100644
--- a/rust/src/x509/mod.rs
+++ b/rust/src/x509/mod.rs
@@ -15,6 +15,8 @@
  * 02110-1301, USA.
  */
 
+//! Module for SSL/TLS X.509 certificates parser and decoder.
+
 // written by Pierre Chifflier  <chifflier@wzdftpd.net>
 
 use crate::common::rust_string_to_c;