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detect/quic: move quic.cyu.string to rust

Browse Source 
Ticket: 8255
pull/14750/head
Philippe Antoine 5 months ago committed by Victor Julien
parent ee4d4a14d5
commit 01610aabe7
6 changed files with 35 additions and 309 deletions
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39
rust/src/quic/detect.rs
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@ -17,13 +17,17 @@
use super::quic::ALPROTO_QUIC;
use crate::core::{STREAM_TOCLIENT, STREAM_TOSERVER};
use crate::detect::{helper_keyword_register_sticky_buffer, SigTableElmtStickyBuffer};
use crate::detect::{
helper_keyword_register_multi_buffer, helper_keyword_register_sticky_buffer,
SigTableElmtStickyBuffer,
};
use crate::quic::quic::QuicTransaction;
use std::os::raw::{c_int, c_void};
use std::ptr;
use suricata_sys::sys::{
DetectEngineCtx, DetectEngineThreadCtx, SCDetectBufferSetActiveList,
SCDetectHelperBufferMpmRegister, SCDetectSignatureSetAppProto, Signature,
SCDetectHelperBufferMpmRegister, SCDetectHelperMultiBufferMpmRegister,
SCDetectSignatureSetAppProto, Signature,
};
unsafe extern "C" fn quic_tx_get_ua(
@ -129,8 +133,7 @@ pub unsafe extern "C" fn SCQuicTxGetCyuHash(
}
}
#[no_mangle]
pub unsafe extern "C" fn SCQuicTxGetCyuString(
unsafe extern "C" fn quic_tx_get_cyu_string(
_de: *mut DetectEngineThreadCtx, tx: *const c_void, _flags: u8, i: u32, buffer: *mut *const u8,
buffer_len: *mut u32,
) -> bool {
@ -187,9 +190,22 @@ unsafe extern "C" fn quic_ua_setup(
return 0;
}
unsafe extern "C" fn quic_cyu_string_setup(
de: *mut DetectEngineCtx, s: *mut Signature, _raw: *const std::os::raw::c_char,
) -> c_int {
if SCDetectSignatureSetAppProto(s, ALPROTO_QUIC) != 0 {
return -1;
}
if SCDetectBufferSetActiveList(de, s, G_QUIC_CYU_STR_BUFFER_ID) < 0 {
return -1;
}
return 0;
}
static mut G_QUIC_VERSION_BUFFER_ID: c_int = 0;
static mut G_QUIC_SNI_BUFFER_ID: c_int = 0;
static mut G_QUIC_UA_BUFFER_ID: c_int = 0;
static mut G_QUIC_CYU_STR_BUFFER_ID: c_int = 0;
#[no_mangle]
pub unsafe extern "C" fn SCDetectQuicRegister() {
@ -237,4 +253,19 @@ pub unsafe extern "C" fn SCDetectQuicRegister() {
STREAM_TOSERVER,
Some(quic_tx_get_ua),
);
let kw = SigTableElmtStickyBuffer {
name: String::from("quic.cyu.string"),
desc: String::from("sticky buffer to match on the QUIC CYU string"),
url: String::from("/rules/quic-keywords.html#quic-cyu-string"),
setup: quic_cyu_string_setup,
};
helper_keyword_register_multi_buffer(&kw);
G_QUIC_CYU_STR_BUFFER_ID = SCDetectHelperMultiBufferMpmRegister(
b"quic.cyu.string\0".as_ptr() as *const libc::c_char,
b"QUIC CYU String\0".as_ptr() as *const libc::c_char,
ALPROTO_QUIC,
STREAM_TOSERVER,
Some(quic_tx_get_cyu_string),
);
}

2
src/Makefile.am
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@ -265,7 +265,6 @@ noinst_HEADERS = \
detect-prefilter.h \
detect-priority.h \
detect-quic-cyu-hash.h \
detect-quic-cyu-string.h \
detect-rawbytes.h \
detect-reference.h \
detect-replace.h \
@ -854,7 +853,6 @@ libsuricata_c_a_SOURCES = \
detect-prefilter.c \
detect-priority.c \
detect-quic-cyu-hash.c \
detect-quic-cyu-string.c \
detect-rawbytes.c \
detect-reference.c \
detect-replace.c \

2
src/detect-engine-register.c
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@ -204,7 +204,6 @@
#include "detect-sip-uri.h"
#include "detect-target.h"
#include "detect-quic-cyu-hash.h"
#include "detect-quic-cyu-string.h"
#include "detect-ja4-hash.h"
#include "detect-ftp-command.h"
#include "detect-entropy.h"
@ -733,7 +732,6 @@ void SigTableSetup(void)
DetectSipUriRegister();
DetectTargetRegister();
DetectQuicCyuHashRegister();
DetectQuicCyuStringRegister();
DetectJa4HashRegister();
DetectFtpCommandRegister();
DetectFtpCommandDataRegister();

1
src/detect-engine-register.h
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@ -284,7 +284,6 @@ enum DetectKeywordId {
DETECT_FTPDATA,
DETECT_TARGET,
DETECT_QUIC_CYU_HASH,
DETECT_QUIC_CYU_STRING,
DETECT_BYPASS,

272
src/detect-quic-cyu-string.c
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@ -1,272 +0,0 @@
/* Copyright (C) 2021-2022 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
*
* Implements the quic.cyu.string sticky buffer
*/
#include "suricata-common.h"
#include "detect.h"
#include "detect-parse.h"
#include "detect-engine.h"
#include "detect-engine-buffer.h"
#include "detect-engine-mpm.h"
#include "detect-engine-prefilter.h"
#include "detect-engine-content-inspection.h"
#include "detect-quic-cyu-string.h"
#include "detect-engine-build.h"
#include "rust.h"
#include "util-profiling.h"
#ifdef UNITTESTS
static void DetectQuicCyuStringRegisterTests(void);
#endif
#define KEYWORD_NAME "quic.cyu.string"
#define KEYWORD_DOC "quic-cyu.html#quic-cyu-string"
#define BUFFER_NAME "quic.cyu.string"
#define BUFFER_DESC "QUIC CYU String"
static int g_buffer_id = 0;
static int DetectQuicCyuStringSetup(DetectEngineCtx *de_ctx, Signature *s, const char *arg)
{
if (SCDetectBufferSetActiveList(de_ctx, s, g_buffer_id) < 0)
return -1;
if (SCDetectSignatureSetAppProto(s, ALPROTO_QUIC) < 0)
return -1;
return 0;
}
void DetectQuicCyuStringRegister(void)
{
/* quic.cyu.string sticky buffer */
sigmatch_table[DETECT_QUIC_CYU_STRING].name = KEYWORD_NAME;
sigmatch_table[DETECT_QUIC_CYU_STRING].desc = "sticky buffer to match on the QUIC CYU string";
sigmatch_table[DETECT_QUIC_CYU_STRING].url = "/rules/" KEYWORD_DOC;
sigmatch_table[DETECT_QUIC_CYU_STRING].Setup = DetectQuicCyuStringSetup;
sigmatch_table[DETECT_QUIC_CYU_STRING].flags =
SIGMATCH_NOOPT | SIGMATCH_INFO_STICKY_BUFFER | SIGMATCH_INFO_MULTI_BUFFER;
#ifdef UNITTESTS
sigmatch_table[DETECT_QUIC_CYU_STRING].RegisterTests = DetectQuicCyuStringRegisterTests;
#endif
DetectAppLayerMultiRegister(
BUFFER_NAME, ALPROTO_QUIC, SIG_FLAG_TOSERVER, 1, SCQuicTxGetCyuString, 2);
DetectBufferTypeSetDescriptionByName(BUFFER_NAME, BUFFER_DESC);
g_buffer_id = DetectBufferTypeGetByName(BUFFER_NAME);
DetectBufferTypeSupportsMultiInstance(BUFFER_NAME);
SCLogDebug("registering " BUFFER_NAME " rule option");
}
#ifdef UNITTESTS
#include "app-layer-parser.h"
#include "util-unittest.h"
#include "util-unittest-helper.h"
#include "flow-util.h"
#include "detect-engine-alert.h"
/**
* \test DetectQuicCyuStringTest01 is a test for a valid quic packet, matching
* on the cyu string
*
* \retval 1 on success
* \retval 0 on failure
*/
static int DetectQuicCyuStringTest01(void)
{
/* quic packet */
uint8_t buf[] = { 0xc3, 0x51, 0x30, 0x34, 0x36, 0x50, 0x76, 0xd8, 0x63, 0xb7, 0x54, 0xf7, 0xab,
0x32, 0x00, 0x00, 0x00, 0x01, 0x54, 0xfd, 0xf4, 0x79, 0x48, 0x76, 0xd0, 0x87, 0x58, 0x8d,
0x26, 0x8f, 0xa0, 0x01, 0x04, 0x00, 0x43, 0x48, 0x4c, 0x4f, 0x11, 0x00, 0x00, 0x00, 0x50,
0x41, 0x44, 0x00, 0xe4, 0x02, 0x00, 0x00, 0x53, 0x4e, 0x49, 0x00, 0xf7, 0x02, 0x00, 0x00,
0x56, 0x45, 0x52, 0x00, 0xfb, 0x02, 0x00, 0x00, 0x43, 0x43, 0x53, 0x00, 0x0b, 0x03, 0x00,
0x00, 0x55, 0x41, 0x49, 0x44, 0x2c, 0x03, 0x00, 0x00, 0x54, 0x43, 0x49, 0x44, 0x30, 0x03,
0x00, 0x00, 0x50, 0x44, 0x4d, 0x44, 0x34, 0x03, 0x00, 0x00, 0x53, 0x4d, 0x48, 0x4c, 0x38,
0x03, 0x00, 0x00, 0x49, 0x43, 0x53, 0x4c, 0x3c, 0x03, 0x00, 0x00, 0x4e, 0x4f, 0x4e, 0x50,
0x5c, 0x03, 0x00, 0x00, 0x4d, 0x49, 0x44, 0x53, 0x60, 0x03, 0x00, 0x00, 0x53, 0x43, 0x4c,
0x53, 0x64, 0x03, 0x00, 0x00, 0x43, 0x53, 0x43, 0x54, 0x64, 0x03, 0x00, 0x00, 0x43, 0x4f,
0x50, 0x54, 0x64, 0x03, 0x00, 0x00, 0x49, 0x52, 0x54, 0x54, 0x68, 0x03, 0x00, 0x00, 0x43,
0x46, 0x43, 0x57, 0x6c, 0x03, 0x00, 0x00, 0x53, 0x46, 0x43, 0x57, 0x70, 0x03, 0x00, 0x00,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00 };
Flow f;
void *quic_state = NULL;
Packet *p = NULL;
Signature *s = NULL;
ThreadVars tv;
DetectEngineThreadCtx *det_ctx = NULL;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&tv, 0, sizeof(ThreadVars));
StatsThreadInit(&tv.stats);
memset(&f, 0, sizeof(Flow));
p = UTHBuildPacketReal(buf, sizeof(buf), IPPROTO_UDP, "192.168.1.5", "192.168.1.1", 41424, 443);
FLOW_INITIALIZE(&f);
f.flags |= FLOW_IPV4;
f.proto = IPPROTO_UDP;
f.protomap = FlowGetProtoMapping(f.proto);
p->flow = &f;
p->flags |= PKT_HAS_FLOW;
p->flowflags |= FLOW_PKT_TOSERVER;
f.alproto = ALPROTO_QUIC;
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
FAIL_IF_NULL(de_ctx);
de_ctx->mpm_matcher = mpm_default_matcher;
de_ctx->flags |= DE_QUIET;
s = DetectEngineAppendSig(de_ctx, "alert quic any any -> any any "
"(msg:\"Test QUIC CYU string\"; "
"quic.cyu.string; "
"content:\"46,PAD-SNI-VER-CCS-UAID-TCID-PDMD-SMHL-ICSL-NONP-"
"MIDS-SCLS-CSCT-COPT-IRTT-CFCW-SFCW\"; "
"sid:1;)");
FAIL_IF_NULL(s);
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
int r = AppLayerParserParse(
NULL, alp_tctx, &f, ALPROTO_QUIC, STREAM_TOSERVER, buf, sizeof(buf));
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
FAIL;
}
quic_state = f.alstate;
FAIL_IF_NULL(quic_state);
/* do detect */
SigMatchSignatures(&tv, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
printf("sig 1 didn't alert, but it should have: ");
FAIL;
}
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (det_ctx != NULL)
DetectEngineThreadCtxDeinit(&tv, det_ctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
FLOW_DESTROY(&f);
UTHFreePacket(p);
StatsThreadCleanup(&tv.stats);
PASS;
}
/**
* \brief this function registers unit tests for Quic Cyu String
*/
static void DetectQuicCyuStringRegisterTests(void)
{
UtRegisterTest("DetectQuicCyuStringTest01", DetectQuicCyuStringTest01);
}
#endif /* UNITTESTS */

28
src/detect-quic-cyu-string.h
Unescape Escape View File

@ -1,28 +0,0 @@
/* Copyright (C) 2021 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
* \file
*
*/
#ifndef SURICATA_DETECT_QUIC_CYU_STRING_H
#define SURICATA_DETECT_QUIC_CYU_STRING_H
void DetectQuicCyuStringRegister(void);
#endif /* SURICATA_DETECT_QUIC_CYU_STRING_H */
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