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suricata/src/detect-http-header.c

1823 lines
52 KiB
C

/* Copyright (C) 2007-2010 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.
*/
/**
* \ingroup httplayer
*
* @{
*/
/**
* \file
*
* \author Pablo Rincon <pablo.rincon.crespo@gmail.com>
*
* Implements support for http_header keyword.
*/
#include "suricata-common.h"
#include "threads.h"
#include "decode.h"
#include "detect.h"
#include "detect-parse.h"
#include "detect-engine.h"
#include "detect-engine-mpm.h"
#include "detect-engine-state.h"
#include "detect-content.h"
#include "detect-pcre.h"
#include "flow.h"
#include "flow-var.h"
#include "flow-util.h"
#include "util-debug.h"
#include "util-unittest.h"
#include "util-unittest-helper.h"
#include "util-spm.h"
#include "util-print.h"
#include "app-layer.h"
#include "app-layer-parser.h"
#include "app-layer-htp.h"
#include "detect-http-header.h"
#include "stream-tcp.h"
int DetectHttpHeaderSetup(DetectEngineCtx *, Signature *, char *);
void DetectHttpHeaderRegisterTests(void);
void DetectHttpHeaderFree(void *);
/**
* \brief Registers the keyword handlers for the "http_header" keyword.
*/
void DetectHttpHeaderRegister(void)
{
sigmatch_table[DETECT_AL_HTTP_HEADER].name = "http_header";
sigmatch_table[DETECT_AL_HTTP_HEADER].desc = "content modifier to match only on the HTTP header-buffer";
sigmatch_table[DETECT_AL_HTTP_HEADER].url = "https://redmine.openinfosecfoundation.org/projects/suricata/wiki/HTTP-keywords#http_header";
sigmatch_table[DETECT_AL_HTTP_HEADER].Match = NULL;
sigmatch_table[DETECT_AL_HTTP_HEADER].AppLayerMatch = NULL;
sigmatch_table[DETECT_AL_HTTP_HEADER].Setup = DetectHttpHeaderSetup;
sigmatch_table[DETECT_AL_HTTP_HEADER].Free = DetectHttpHeaderFree;
sigmatch_table[DETECT_AL_HTTP_HEADER].RegisterTests = DetectHttpHeaderRegisterTests;
sigmatch_table[DETECT_AL_HTTP_HEADER].alproto = ALPROTO_HTTP;
sigmatch_table[DETECT_AL_HTTP_HEADER].flags |= SIGMATCH_NOOPT ;
sigmatch_table[DETECT_AL_HTTP_HEADER].flags |= SIGMATCH_PAYLOAD ;
return;
}
/**
* \brief this function clears the memory of http_header modifier keyword
*
* \param ptr Pointer to the Detection Header Data
*/
void DetectHttpHeaderFree(void *ptr)
{
DetectContentData *hhd = (DetectContentData *)ptr;
if (hhd == NULL)
return;
if (hhd->content != NULL)
SCFree(hhd->content);
SCFree(hhd);
return;
}
/**
* \brief The setup function for the http_header keyword for a signature.
*
* \param de_ctx Pointer to the detection engine context.
* \param s Pointer to signature for the current Signature being parsed
* from the rules.
* \param m Pointer to the head of the SigMatchs for the current rule
* being parsed.
* \param arg Pointer to the string holding the keyword value.
*
* \retval 0 On success.
* \retval -1 On failure.
*/
int DetectHttpHeaderSetup(DetectEngineCtx *de_ctx, Signature *s, char *arg)
{
return DetectEngineContentModifierBufferSetup(de_ctx, s, arg,
DETECT_AL_HTTP_HEADER,
DETECT_SM_LIST_HHDMATCH,
ALPROTO_HTTP,
NULL);
}
/************************************Unittests*********************************/
#ifdef UNITTESTS
#include "stream-tcp-reassemble.h"
/**
* \test Test that a signature containting a http_header is correctly parsed
* and the keyword is registered.
*/
static int DetectHttpHeaderTest01(void)
{
DetectEngineCtx *de_ctx = NULL;
int result = 0;
SigMatch *sm = NULL;
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any "
"(msg:\"Testing http_header\"; "
"content:\"one\"; http_header; sid:1;)");
if (de_ctx->sig_list != NULL) {
result = 1;
} else {
printf("Error parsing signature: ");
goto end;
}
sm = de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HHDMATCH];
if (sm != NULL) {
result &= (sm->type == DETECT_CONTENT);
result &= (sm->next == NULL);
} else {
result = 0;
printf("Error updating content pattern to http_header pattern: ");
}
end:
SigGroupCleanup(de_ctx);
SigCleanSignatures(de_ctx);
DetectEngineCtxFree(de_ctx);
return result;
}
/**
* \test Test that a signature containing an valid http_header entry is
* parsed.
*/
static int DetectHttpHeaderTest02(void)
{
DetectEngineCtx *de_ctx = NULL;
int result = 0;
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any "
"(msg:\"Testing http_header\"; "
"content:\"one\"; http_header:; sid:1;)");
if (de_ctx->sig_list != NULL)
result = 1;
else
printf("Error parsing signature: ");
end:
SigGroupCleanup(de_ctx);
SigCleanSignatures(de_ctx);
DetectEngineCtxFree(de_ctx);
return result;
}
/**
* \test Test that an invalid signature containing no content but a http_header
* is invalidated.
*/
static int DetectHttpHeaderTest03(void)
{
DetectEngineCtx *de_ctx = NULL;
int result = 0;
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any "
"(msg:\"Testing http_header\"; "
"http_header; sid:1;)");
if (de_ctx->sig_list == NULL)
result = 1;
else
printf("Error parsing signature: ");
end:
SigGroupCleanup(de_ctx);
SigCleanSignatures(de_ctx);
DetectEngineCtxFree(de_ctx);
return result;
}
/**
* \test Test that an invalid signature containing a rawbytes along with a
* http_header is invalidated.
*/
static int DetectHttpHeaderTest04(void)
{
DetectEngineCtx *de_ctx = NULL;
int result = 0;
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any "
"(msg:\"Testing http_header\"; "
"content:\"one\"; rawbytes; http_header; sid:1;)");
if (de_ctx->sig_list == NULL)
result = 1;
else
printf("Error parsing signature: ");
end:
SigGroupCleanup(de_ctx);
SigCleanSignatures(de_ctx);
DetectEngineCtxFree(de_ctx);
return result;
}
/**
* \test Test that an invalid signature containing a rawbytes along with a
* http_header is invalidated.
*/
static int DetectHttpHeaderTest05(void)
{
DetectEngineCtx *de_ctx = NULL;
int result = 0;
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any "
"(msg:\"Testing http_header\"; "
"content:\"one\"; nocase; http_header; sid:1;)");
if (de_ctx->sig_list != NULL)
result = 1;
else
printf("Error parsing signature: ");
end:
SigGroupCleanup(de_ctx);
SigCleanSignatures(de_ctx);
DetectEngineCtxFree(de_ctx);
return result;
}
/**
*\test Test that the http_header content matches against a http request
* which holds the content.
*/
static int DetectHttpHeaderTest06(void)
{
TcpSession ssn;
Packet *p = NULL;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
HtpState *http_state = NULL;
Flow f;
uint8_t http_buf[] =
"GET /index.html HTTP/1.0\r\n"
"Host: www.openinfosecfoundation.org\r\n"
"User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7\r\n"
"Content-Type: text/html\r\n"
"Content-Length: 26\r\n"
"\r\n"
"This is dummy message body\r\n";
uint32_t http_len = sizeof(http_buf) - 1;
int result = 0;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
"(msg:\"http header test\"; "
"content:\"Content-Type: text/html\"; http_header; "
"sid:1;)");
if (de_ctx->sig_list == NULL)
goto end;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
http_state = f.alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
SigCleanSignatures(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
return result;
}
/**
*\test Test that the http_header content matches against a http request
* which holds the content.
*/
static int DetectHttpHeaderTest07(void)
{
TcpSession ssn;
Packet *p1 = NULL;
Packet *p2 = NULL;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
HtpState *http_state = NULL;
Flow f;
uint8_t http1_buf[] =
"GET /index.html HTTP/1.0\r\n"
"Host: www.openinfosecfoundation.org\r\n"
"User-Agent: Mozi";
uint8_t http2_buf[] =
"lla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7\r\nContent-Type: text/html\r\n"
"Content-Length: 67\r\n"
"\r\n"
"This is dummy message body1";
uint32_t http1_len = sizeof(http1_buf) - 1;
uint32_t http2_len = sizeof(http2_buf) - 1;
int result = 0;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p1->flow = &f;
p1->flowflags |= FLOW_PKT_TOSERVER;
p1->flowflags |= FLOW_PKT_ESTABLISHED;
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
p2->flow = &f;
p2->flowflags |= FLOW_PKT_TOSERVER;
p2->flowflags |= FLOW_PKT_ESTABLISHED;
p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
"(msg:\"http header test\"; "
"content:\"Mozilla\"; http_header; "
"sid:1;)");
if (de_ctx->sig_list == NULL)
goto end;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http1_buf, http1_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
http_state = f.alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
if ( (PacketAlertCheck(p1, 1))) {
printf("sid 1 matched but shouldn't have: ");
goto end;
}
SCMutexLock(&f.m);
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http2_buf, http2_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
if (!(PacketAlertCheck(p2, 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
SigCleanSignatures(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p1, 1);
UTHFreePackets(&p2, 1);
return result;
}
/**
*\test Test that the http_header content matches against a http request
* which holds the content.
*/
static int DetectHttpHeaderTest08(void)
{
TcpSession ssn;
Packet *p1 = NULL;
Packet *p2 = NULL;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
HtpState *http_state = NULL;
Flow f;
uint8_t http1_buf[] =
"GET /index.html HTTP/1.0\r\n"
"Host: www.openinfosecfoundation.org\r\n";
uint8_t http2_buf[] =
"User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7\r\n"
"Content-Type: text/html\r\n"
"Content-Length: 67\r\n"
"\r\n";
uint32_t http1_len = sizeof(http1_buf) - 1;
uint32_t http2_len = sizeof(http2_buf) - 1;
int result = 0;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p1->flow = &f;
p1->flowflags |= FLOW_PKT_TOSERVER;
p1->flowflags |= FLOW_PKT_ESTABLISHED;
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
p2->flow = &f;
p2->flowflags |= FLOW_PKT_TOSERVER;
p2->flowflags |= FLOW_PKT_ESTABLISHED;
p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
"(msg:\"http header test\"; "
"content:\"Gecko/20091221 Firefox/3.5.7\"; http_header; "
"sid:1;)");
if (de_ctx->sig_list == NULL)
goto end;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http1_buf, http1_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
http_state = f.alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
if ((PacketAlertCheck(p1, 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
SCMutexLock(&f.m);
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http2_buf, http2_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
if (!(PacketAlertCheck(p2, 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
SigCleanSignatures(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p1, 1);
UTHFreePackets(&p2, 1);
return result;
}
/**
*\test Test that the http_header content matches against a http request
* which holds the content, against a cross boundary present pattern.
*/
static int DetectHttpHeaderTest09(void)
{
TcpSession ssn;
Packet *p1 = NULL;
Packet *p2 = NULL;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
HtpState *http_state = NULL;
Flow f;
uint8_t http1_buf[] =
"GET /index.html HTTP/1.0\r\n"
"Host: www.openinfosecfoundation.org\r\n"
"User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7\r\n";
uint8_t http2_buf[] =
"Content-Type: text/html\r\n"
"Content-Length: 67\r\n"
"\r\n"
"This is dummy body\r\n";
uint32_t http1_len = sizeof(http1_buf) - 1;
uint32_t http2_len = sizeof(http2_buf) - 1;
int result = 0;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p1->flow = &f;
p1->flowflags |= FLOW_PKT_TOSERVER;
p1->flowflags |= FLOW_PKT_ESTABLISHED;
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
p2->flow = &f;
p2->flowflags |= FLOW_PKT_TOSERVER;
p2->flowflags |= FLOW_PKT_ESTABLISHED;
p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->mpm_matcher = DEFAULT_MPM;
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
"(msg:\"http header test\"; "
"content:\"Firefox/3.5.7|0D 0A|Content\"; http_header; "
"sid:1;)");
if (de_ctx->sig_list == NULL)
goto end;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http1_buf, http1_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
http_state = f.alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
if ((PacketAlertCheck(p1, 1))) {
printf("sid 1 matched but shouldn't have: ");
goto end;
}
SCMutexLock(&f.m);
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http2_buf, http2_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
if (!(PacketAlertCheck(p2, 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
SigCleanSignatures(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p1, 1);
UTHFreePackets(&p2, 1);
return result;
}
/**
*\test Test that the http_header content matches against a http request
* against a case insensitive pattern.
*/
static int DetectHttpHeaderTest10(void)
{
TcpSession ssn;
Packet *p1 = NULL;
Packet *p2 = NULL;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
HtpState *http_state = NULL;
Flow f;
uint8_t http1_buf[] =
"GET /index.html HTTP/1.0\r\n"
"Host: www.openinfosecfoundation.org\r\n"
"User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7\r\n";
uint8_t http2_buf[] =
"Content-Type: text/html\r\n"
"Content-Length: 67\r\n"
"\r\n"
"This is dummy body";
uint32_t http1_len = sizeof(http1_buf) - 1;
uint32_t http2_len = sizeof(http2_buf) - 1;
int result = 0;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p1->flow = &f;
p1->flowflags |= FLOW_PKT_TOSERVER;
p1->flowflags |= FLOW_PKT_ESTABLISHED;
p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
p2->flow = &f;
p2->flowflags |= FLOW_PKT_TOSERVER;
p2->flowflags |= FLOW_PKT_ESTABLISHED;
p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
"(msg:\"http header test\"; "
"content:\"firefox/3.5.7|0D 0A|content\"; nocase; http_header;"
"sid:1;)");
if (de_ctx->sig_list == NULL)
goto end;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http1_buf, http1_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
http_state = f.alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
if ((PacketAlertCheck(p1, 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
SCMutexLock(&f.m);
r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http2_buf, http2_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
if (!(PacketAlertCheck(p2, 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
SigCleanSignatures(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p1, 1);
UTHFreePackets(&p2, 1);
return result;
}
/**
*\test Test that the negated http_header content matches against a
* http request which doesn't hold the content.
*/
static int DetectHttpHeaderTest11(void)
{
TcpSession ssn;
Packet *p = NULL;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
HtpState *http_state = NULL;
Flow f;
uint8_t http_buf[] =
"GET /index.html HTTP/1.0\r\n"
"Host: www.openinfosecfoundation.org\r\n"
"User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7\r\n"
"Content-Type: text/html\r\n"
"Content-Length: 26\r\n"
"\r\n"
"This is dummy message body\r\n";
uint32_t http_len = sizeof(http_buf) - 1;
int result = 0;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
"(msg:\"http header test\"; "
"content:!\"lalalalala\"; http_header; "
"sid:1;)");
if (de_ctx->sig_list == NULL)
goto end;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
http_state = f.alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
SigCleanSignatures(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
return result;
}
/**
*\test Negative test that the negated http_header content matches against a
* http request which holds hold the content.
*/
static int DetectHttpHeaderTest12(void)
{
TcpSession ssn;
Packet *p = NULL;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
HtpState *http_state = NULL;
Flow f;
uint8_t http_buf[] =
"GET /index.html HTTP/1.0\r\n"
"Host: www.openinfosecfoundation.org\r\n"
"User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7\r\n"
"Content-Type: text/html\r\n"
"Content-Length: 26\r\n"
"\r\n"
"This is dummy message body\r\n";
uint32_t http_len = sizeof(http_buf) - 1;
int result = 0;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
"(msg:\"http header test\"; "
"content:!\"User-Agent: Mozilla/5.0 \"; http_header; "
"sid:1;)");
if (de_ctx->sig_list == NULL)
goto end;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
http_state = f.alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if ((PacketAlertCheck(p, 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
SigCleanSignatures(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
return result;
}
/**
*\test Test that the http_header content matches against a http request
* which holds the content.
*/
static int DetectHttpHeaderTest13(void)
{
TcpSession ssn;
Packet *p = NULL;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
HtpState *http_state = NULL;
Flow f;
uint8_t http_buf[] =
"GET /index.html HTTP/1.0\r\n"
"Host: www.openinfosecfoundation.org\r\n"
"User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7\r\n"
"Content-Type: text/html\r\n"
"Content-Length: 100\r\n"
"\r\n"
"longbufferabcdefghijklmnopqrstuvwxyz0123456789bufferend\r\n";
uint32_t http_len = sizeof(http_buf) - 1;
int result = 0;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
"(msg:\"http header test\"; "
"content:\"Host: www.openinfosecfoundation.org\"; http_header; "
"sid:1;)");
if (de_ctx->sig_list == NULL)
goto end;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
http_state = f.alstate;
if (http_state == NULL) {
printf("no http state: ");
result = 0;
goto end;
}
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
SigCleanSignatures(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
return result;
}
int DetectHttpHeaderTest20(void)
{
DetectEngineCtx *de_ctx = NULL;
int result = 0;
if ( (de_ctx = DetectEngineCtxInit()) == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, "alert icmp any any -> any any "
"(content:\"one\"; http_header; "
"content:\"two\"; distance:0; http_header; sid:1;)");
if (de_ctx->sig_list == NULL) {
printf("de_ctx->sig_list == NULL\n");
goto end;
}
if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] != NULL) {
printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] != NULL\n");
goto end;
}
if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HHDMATCH] == NULL) {
printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HHDMATCH] == NULL\n");
goto end;
}
DetectContentData *hhd1 = (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev->ctx;
DetectContentData *hhd2 = (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->ctx;
if (hhd1->flags != DETECT_CONTENT_RELATIVE_NEXT ||
memcmp(hhd1->content, "one", hhd1->content_len) != 0 ||
hhd2->flags != DETECT_CONTENT_DISTANCE ||
memcmp(hhd2->content, "two", hhd1->content_len) != 0) {
goto end;
}
result = 1;
end:
SigCleanSignatures(de_ctx);
DetectEngineCtxFree(de_ctx);
return result;
}
int DetectHttpHeaderTest21(void)
{
DetectEngineCtx *de_ctx = NULL;
int result = 0;
if ( (de_ctx = DetectEngineCtxInit()) == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, "alert icmp any any -> any any "
"(content:\"one\"; http_header; "
"content:\"two\"; within:5; http_header; sid:1;)");
if (de_ctx->sig_list == NULL) {
printf("de_ctx->sig_list == NULL\n");
goto end;
}
if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] != NULL) {
printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] != NULL\n");
goto end;
}
if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HHDMATCH] == NULL) {
printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HHDMATCH] == NULL\n");
goto end;
}
DetectContentData *hhd1 = (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev->ctx;
DetectContentData *hhd2 = (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->ctx;
if (hhd1->flags != DETECT_CONTENT_RELATIVE_NEXT ||
memcmp(hhd1->content, "one", hhd1->content_len) != 0 ||
hhd2->flags != DETECT_CONTENT_WITHIN ||
memcmp(hhd2->content, "two", hhd1->content_len) != 0) {
goto end;
}
result = 1;
end:
SigCleanSignatures(de_ctx);
DetectEngineCtxFree(de_ctx);
return result;
}
int DetectHttpHeaderTest22(void)
{
DetectEngineCtx *de_ctx = NULL;
int result = 0;
if ( (de_ctx = DetectEngineCtxInit()) == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, "alert icmp any any -> any any "
"(content:\"one\"; within:5; http_header; sid:1;)");
if (de_ctx->sig_list == NULL) {
printf("de_ctx->sig_list == NULL\n");
goto end;
}
result = 1;
end:
SigCleanSignatures(de_ctx);
DetectEngineCtxFree(de_ctx);
return result;
}
int DetectHttpHeaderTest23(void)
{
DetectEngineCtx *de_ctx = NULL;
int result = 0;
if ( (de_ctx = DetectEngineCtxInit()) == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, "alert icmp any any -> any any "
"(content:\"one\"; http_header; within:5; sid:1;)");
if (de_ctx->sig_list == NULL) {
printf("de_ctx->sig_list == NULL\n");
goto end;
}
result = 1;
end:
SigCleanSignatures(de_ctx);
DetectEngineCtxFree(de_ctx);
return result;
}
int DetectHttpHeaderTest24(void)
{
DetectEngineCtx *de_ctx = NULL;
int result = 0;
if ( (de_ctx = DetectEngineCtxInit()) == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, "alert icmp any any -> any any "
"(content:\"one\"; within:5; sid:1;)");
if (de_ctx->sig_list == NULL) {
printf("de_ctx->sig_list == NULL\n");
goto end;
}
result = 1;
end:
SigCleanSignatures(de_ctx);
DetectEngineCtxFree(de_ctx);
return result;
}
int DetectHttpHeaderTest25(void)
{
DetectEngineCtx *de_ctx = NULL;
int result = 0;
if ( (de_ctx = DetectEngineCtxInit()) == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, "alert icmp any any -> any any "
"(pcre:/one/H; "
"content:\"two\"; within:5; http_header; sid:1;)");
if (de_ctx->sig_list == NULL) {
printf("de_ctx->sig_list == NULL\n");
goto end;
}
if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] != NULL) {
printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] != NULL\n");
goto end;
}
if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HHDMATCH] == NULL) {
printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HHDMATCH] == NULL\n");
goto end;
}
if (de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH] == NULL ||
de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->type != DETECT_CONTENT ||
de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev == NULL ||
de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev->type != DETECT_PCRE) {
goto end;
}
DetectPcreData *pd1 = (DetectPcreData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev->ctx;
DetectContentData *hhd2 = (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->ctx;
if (pd1->flags != (DETECT_PCRE_RELATIVE_NEXT) ||
hhd2->flags != DETECT_CONTENT_WITHIN ||
memcmp(hhd2->content, "two", hhd2->content_len) != 0) {
goto end;
}
result = 1;
end:
SigCleanSignatures(de_ctx);
DetectEngineCtxFree(de_ctx);
return result;
}
int DetectHttpHeaderTest26(void)
{
DetectEngineCtx *de_ctx = NULL;
int result = 0;
if ( (de_ctx = DetectEngineCtxInit()) == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, "alert icmp any any -> any any "
"(content:\"two\"; http_header; "
"pcre:/one/HR; sid:1;)");
if (de_ctx->sig_list == NULL) {
printf("de_ctx->sig_list == NULL\n");
goto end;
}
if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] != NULL) {
printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] != NULL\n");
goto end;
}
if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HHDMATCH] == NULL) {
printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HHDMATCH] == NULL\n");
goto end;
}
if (de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH] == NULL ||
de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->type != DETECT_PCRE ||
de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev == NULL ||
de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev->type != DETECT_CONTENT) {
goto end;
}
DetectContentData *hhd1 = (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev->ctx;
DetectPcreData *pd2 = (DetectPcreData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->ctx;
if (pd2->flags != (DETECT_PCRE_RELATIVE) ||
hhd1->flags != DETECT_CONTENT_RELATIVE_NEXT ||
memcmp(hhd1->content, "two", hhd1->content_len) != 0) {
goto end;
}
result = 1;
end:
SigCleanSignatures(de_ctx);
DetectEngineCtxFree(de_ctx);
return result;
}
int DetectHttpHeaderTest27(void)
{
DetectEngineCtx *de_ctx = NULL;
int result = 0;
if ( (de_ctx = DetectEngineCtxInit()) == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, "alert icmp any any -> any any "
"(pcre:/one/H; "
"content:\"two\"; distance:5; http_header; sid:1;)");
if (de_ctx->sig_list == NULL) {
printf("de_ctx->sig_list == NULL\n");
goto end;
}
if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] != NULL) {
printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] != NULL\n");
goto end;
}
if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HHDMATCH] == NULL) {
printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HHDMATCH] == NULL\n");
goto end;
}
if (de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH] == NULL ||
de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->type != DETECT_CONTENT ||
de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev == NULL ||
de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev->type != DETECT_PCRE) {
goto end;
}
DetectPcreData *pd1 = (DetectPcreData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev->ctx;
DetectContentData *hhd2 = (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->ctx;
if (pd1->flags != (DETECT_PCRE_RELATIVE_NEXT) ||
hhd2->flags != DETECT_CONTENT_DISTANCE ||
memcmp(hhd2->content, "two", hhd2->content_len) != 0) {
goto end;
}
result = 1;
end:
SigCleanSignatures(de_ctx);
DetectEngineCtxFree(de_ctx);
return result;
}
/** \test app-layer-event:http.host_header_ambiguous should not be set
* \bug 640*/
static int DetectHttpHeaderTest28(void)
{
TcpSession ssn;
Packet *p = NULL;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
Flow f;
uint8_t http_buf[] =
"POST http://xxx.intranet.local:8000/xxx HTTP/1.1\r\n"
"User-Agent: Mozilla/4.0 (Windows XP 5.1) Java/1.6.0_29\r\n"
"Host: xxx.intranet.local:8000\r\n"
"\r\n";
uint32_t http_len = sizeof(http_buf) - 1;
int result = 0;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
"(app-layer-event:http.host_header_ambiguous; "
"sid:1;)");
if (de_ctx->sig_list == NULL)
goto end;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (PacketAlertCheck(p, 1)) {
printf("sid 1 matched but shouldnt have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
SigCleanSignatures(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
return result;
}
/** \test app-layer-event:http.host_header_ambiguous should be set
* \bug 640*/
static int DetectHttpHeaderTest29(void)
{
TcpSession ssn;
Packet *p = NULL;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
Flow f;
uint8_t http_buf[] =
"POST http://xxx.intranet.local:8001/xxx HTTP/1.1\r\n"
"User-Agent: Mozilla/4.0 (Windows XP 5.1) Java/1.6.0_29\r\n"
"Host: xxx.intranet.local:8000\r\n"
"\r\n";
uint32_t http_len = sizeof(http_buf) - 1;
int result = 0;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
"(app-layer-event:http.host_header_ambiguous; "
"sid:1;)");
if (de_ctx->sig_list == NULL)
goto end;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
SigCleanSignatures(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
return result;
}
/** \test app-layer-event:http.host_header_ambiguous should be set
* \bug 640*/
static int DetectHttpHeaderTest30(void)
{
TcpSession ssn;
Packet *p = NULL;
ThreadVars th_v;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
Flow f;
uint8_t http_buf[] =
"POST http://xxx.intranet.local:8000/xxx HTTP/1.1\r\n"
"User-Agent: Mozilla/4.0 (Windows XP 5.1) Java/1.6.0_29\r\n"
"Host: xyz.intranet.local:8000\r\n"
"\r\n";
uint32_t http_len = sizeof(http_buf) - 1;
int result = 0;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
memset(&th_v, 0, sizeof(th_v));
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_TCP;
f.flags |= FLOW_IPV4;
p->flow = &f;
p->flowflags |= FLOW_PKT_TOSERVER;
p->flowflags |= FLOW_PKT_ESTABLISHED;
p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
f.alproto = ALPROTO_HTTP;
StreamTcpInitConfig(TRUE);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
"(app-layer-event:http.host_header_ambiguous; "
"sid:1;)");
if (de_ctx->sig_list == NULL)
goto end;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
SCMutexLock(&f.m);
int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
SCMutexUnlock(&f.m);
goto end;
}
SCMutexUnlock(&f.m);
/* do detect */
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
if (!(PacketAlertCheck(p, 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
result = 1;
end:
if (alp_tctx != NULL)
AppLayerParserThreadCtxFree(alp_tctx);
if (de_ctx != NULL)
SigGroupCleanup(de_ctx);
if (de_ctx != NULL)
SigCleanSignatures(de_ctx);
if (de_ctx != NULL)
DetectEngineCtxFree(de_ctx);
StreamTcpFreeConfig(TRUE);
FLOW_DESTROY(&f);
UTHFreePackets(&p, 1);
return result;
}
#endif /* UNITTESTS */
void DetectHttpHeaderRegisterTests(void)
{
#ifdef UNITTESTS
UtRegisterTest("DetectHttpHeaderTest01", DetectHttpHeaderTest01);
UtRegisterTest("DetectHttpHeaderTest02", DetectHttpHeaderTest02);
UtRegisterTest("DetectHttpHeaderTest03", DetectHttpHeaderTest03);
UtRegisterTest("DetectHttpHeaderTest04", DetectHttpHeaderTest04);
UtRegisterTest("DetectHttpHeaderTest05", DetectHttpHeaderTest05);
UtRegisterTest("DetectHttpHeaderTest06", DetectHttpHeaderTest06);
UtRegisterTest("DetectHttpHeaderTest07", DetectHttpHeaderTest07);
UtRegisterTest("DetectHttpHeaderTest08", DetectHttpHeaderTest08);
UtRegisterTest("DetectHttpHeaderTest09", DetectHttpHeaderTest09);
UtRegisterTest("DetectHttpHeaderTest10", DetectHttpHeaderTest10);
UtRegisterTest("DetectHttpHeaderTest11", DetectHttpHeaderTest11);
UtRegisterTest("DetectHttpHeaderTest12", DetectHttpHeaderTest12);
UtRegisterTest("DetectHttpHeaderTest13", DetectHttpHeaderTest13);
UtRegisterTest("DetectHttpHeaderTest20", DetectHttpHeaderTest20);
UtRegisterTest("DetectHttpHeaderTest21", DetectHttpHeaderTest21);
UtRegisterTest("DetectHttpHeaderTest22", DetectHttpHeaderTest22);
UtRegisterTest("DetectHttpHeaderTest23", DetectHttpHeaderTest23);
UtRegisterTest("DetectHttpHeaderTest24", DetectHttpHeaderTest24);
UtRegisterTest("DetectHttpHeaderTest25", DetectHttpHeaderTest25);
UtRegisterTest("DetectHttpHeaderTest26", DetectHttpHeaderTest26);
UtRegisterTest("DetectHttpHeaderTest27", DetectHttpHeaderTest27);
UtRegisterTest("DetectHttpHeaderTest28", DetectHttpHeaderTest28);
UtRegisterTest("DetectHttpHeaderTest29", DetectHttpHeaderTest29);
UtRegisterTest("DetectHttpHeaderTest30", DetectHttpHeaderTest30);
#endif /* UNITTESTS */
return;
}
/**
* @}
*/