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1778 lines
50 KiB
C
1778 lines
50 KiB
C
/* Copyright (C) 2007-2010 Open Information Security Foundation
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*
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* You can copy, redistribute or modify this Program under the terms of
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* the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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* \ingroup httplayer
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*
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* @{
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*/
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/**
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* \file
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*
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* \author Pablo Rincon <pablo.rincon.crespo@gmail.com>
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*
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* Implements support for http_header keyword.
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*/
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#include "suricata-common.h"
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#include "threads.h"
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#include "decode.h"
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#include "detect.h"
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#include "detect-parse.h"
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#include "detect-engine.h"
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#include "detect-engine-mpm.h"
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#include "detect-engine-state.h"
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#include "detect-content.h"
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#include "detect-pcre.h"
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#include "flow.h"
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#include "flow-var.h"
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#include "flow-util.h"
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#include "util-debug.h"
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#include "util-unittest.h"
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#include "util-unittest-helper.h"
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#include "util-spm.h"
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#include "util-print.h"
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#include "app-layer.h"
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#include "app-layer-htp.h"
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#include "detect-http-header.h"
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#include "stream-tcp.h"
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int DetectHttpHeaderSetup(DetectEngineCtx *, Signature *, char *);
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void DetectHttpHeaderRegisterTests(void);
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void DetectHttpHeaderFree(void *);
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/**
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* \brief Registers the keyword handlers for the "http_header" keyword.
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*/
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void DetectHttpHeaderRegister(void)
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{
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sigmatch_table[DETECT_AL_HTTP_HEADER].name = "http_header";
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sigmatch_table[DETECT_AL_HTTP_HEADER].desc = "content modifier to match only on the HTTP header-buffer";
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sigmatch_table[DETECT_AL_HTTP_HEADER].url = "https://redmine.openinfosecfoundation.org/projects/suricata/wiki/HTTP-keywords#http_header";
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sigmatch_table[DETECT_AL_HTTP_HEADER].Match = NULL;
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sigmatch_table[DETECT_AL_HTTP_HEADER].AppLayerMatch = NULL;
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sigmatch_table[DETECT_AL_HTTP_HEADER].Setup = DetectHttpHeaderSetup;
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sigmatch_table[DETECT_AL_HTTP_HEADER].Free = DetectHttpHeaderFree;
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sigmatch_table[DETECT_AL_HTTP_HEADER].RegisterTests = DetectHttpHeaderRegisterTests;
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sigmatch_table[DETECT_AL_HTTP_HEADER].alproto = ALPROTO_HTTP;
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sigmatch_table[DETECT_AL_HTTP_HEADER].flags |= SIGMATCH_PAYLOAD ;
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return;
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}
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/**
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* \brief this function clears the memory of http_header modifier keyword
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*
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* \param ptr Pointer to the Detection Header Data
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*/
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void DetectHttpHeaderFree(void *ptr)
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{
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DetectContentData *hhd = (DetectContentData *)ptr;
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if (hhd == NULL)
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return;
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if (hhd->content != NULL)
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SCFree(hhd->content);
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SCFree(hhd);
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return;
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}
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/**
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* \brief The setup function for the http_header keyword for a signature.
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*
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* \param de_ctx Pointer to the detection engine context.
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* \param s Pointer to signature for the current Signature being parsed
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* from the rules.
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* \param m Pointer to the head of the SigMatchs for the current rule
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* being parsed.
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* \param arg Pointer to the string holding the keyword value.
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*
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* \retval 0 On success.
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* \retval -1 On failure.
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*/
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int DetectHttpHeaderSetup(DetectEngineCtx *de_ctx, Signature *s, char *arg)
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{
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return DetectEngineContentModifierBufferSetup(de_ctx, s, arg,
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DETECT_AL_HTTP_HEADER,
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DETECT_SM_LIST_HHDMATCH,
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ALPROTO_HTTP,
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NULL);
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}
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/************************************Unittests*********************************/
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#ifdef UNITTESTS
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#include "stream-tcp-reassemble.h"
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/**
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* \test Test that a signature containting a http_header is correctly parsed
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* and the keyword is registered.
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*/
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static int DetectHttpHeaderTest01(void)
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{
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DetectEngineCtx *de_ctx = NULL;
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int result = 0;
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SigMatch *sm = NULL;
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de_ctx = DetectEngineCtxInit();
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if (de_ctx == NULL)
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goto end;
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de_ctx->flags |= DE_QUIET;
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de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any "
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"(msg:\"Testing http_header\"; "
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"content:\"one\"; http_header; sid:1;)");
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if (de_ctx->sig_list != NULL) {
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result = 1;
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} else {
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printf("Error parsing signature: ");
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goto end;
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}
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sm = de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HHDMATCH];
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if (sm != NULL) {
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result &= (sm->type == DETECT_CONTENT);
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result &= (sm->next == NULL);
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} else {
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result = 0;
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printf("Error updating content pattern to http_header pattern: ");
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}
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end:
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SigGroupCleanup(de_ctx);
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SigCleanSignatures(de_ctx);
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DetectEngineCtxFree(de_ctx);
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return result;
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}
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/**
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* \test Test that a signature containing an valid http_header entry is
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* parsed.
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*/
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static int DetectHttpHeaderTest02(void)
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{
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DetectEngineCtx *de_ctx = NULL;
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int result = 0;
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de_ctx = DetectEngineCtxInit();
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if (de_ctx == NULL)
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goto end;
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de_ctx->flags |= DE_QUIET;
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de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any "
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"(msg:\"Testing http_header\"; "
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"content:\"one\"; http_header:; sid:1;)");
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if (de_ctx->sig_list != NULL)
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result = 1;
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else
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printf("Error parsing signature: ");
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end:
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SigGroupCleanup(de_ctx);
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SigCleanSignatures(de_ctx);
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DetectEngineCtxFree(de_ctx);
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return result;
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}
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/**
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* \test Test that an invalid signature containing no content but a http_header
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* is invalidated.
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*/
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static int DetectHttpHeaderTest03(void)
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{
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DetectEngineCtx *de_ctx = NULL;
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int result = 0;
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de_ctx = DetectEngineCtxInit();
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if (de_ctx == NULL)
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goto end;
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de_ctx->flags |= DE_QUIET;
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de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any "
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"(msg:\"Testing http_header\"; "
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"http_header; sid:1;)");
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if (de_ctx->sig_list == NULL)
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result = 1;
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else
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printf("Error parsing signature: ");
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end:
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SigGroupCleanup(de_ctx);
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SigCleanSignatures(de_ctx);
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DetectEngineCtxFree(de_ctx);
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return result;
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}
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/**
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* \test Test that an invalid signature containing a rawbytes along with a
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* http_header is invalidated.
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*/
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static int DetectHttpHeaderTest04(void)
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{
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DetectEngineCtx *de_ctx = NULL;
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int result = 0;
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de_ctx = DetectEngineCtxInit();
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if (de_ctx == NULL)
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goto end;
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de_ctx->flags |= DE_QUIET;
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de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any "
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"(msg:\"Testing http_header\"; "
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"content:\"one\"; rawbytes; http_header; sid:1;)");
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if (de_ctx->sig_list == NULL)
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result = 1;
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else
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printf("Error parsing signature: ");
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end:
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SigGroupCleanup(de_ctx);
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SigCleanSignatures(de_ctx);
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DetectEngineCtxFree(de_ctx);
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return result;
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}
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/**
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* \test Test that an invalid signature containing a rawbytes along with a
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* http_header is invalidated.
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*/
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static int DetectHttpHeaderTest05(void)
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{
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DetectEngineCtx *de_ctx = NULL;
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int result = 0;
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de_ctx = DetectEngineCtxInit();
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if (de_ctx == NULL)
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goto end;
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de_ctx->flags |= DE_QUIET;
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de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any "
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"(msg:\"Testing http_header\"; "
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"content:\"one\"; nocase; http_header; sid:1;)");
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if (de_ctx->sig_list != NULL)
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result = 1;
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else
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printf("Error parsing signature: ");
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end:
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SigGroupCleanup(de_ctx);
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SigCleanSignatures(de_ctx);
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DetectEngineCtxFree(de_ctx);
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return result;
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}
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/**
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*\test Test that the http_header content matches against a http request
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* which holds the content.
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*/
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static int DetectHttpHeaderTest06(void)
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{
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TcpSession ssn;
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Packet *p = NULL;
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ThreadVars th_v;
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DetectEngineCtx *de_ctx = NULL;
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DetectEngineThreadCtx *det_ctx = NULL;
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HtpState *http_state = NULL;
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Flow f;
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uint8_t http_buf[] =
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"GET /index.html HTTP/1.0\r\n"
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"Host: www.openinfosecfoundation.org\r\n"
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"User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7\r\n"
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"Content-Type: text/html\r\n"
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"Content-Length: 26\r\n"
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"\r\n"
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"This is dummy message body\r\n";
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uint32_t http_len = sizeof(http_buf) - 1;
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int result = 0;
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memset(&th_v, 0, sizeof(th_v));
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memset(&f, 0, sizeof(f));
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memset(&ssn, 0, sizeof(ssn));
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p = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
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FLOW_INITIALIZE(&f);
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f.protoctx = (void *)&ssn;
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f.flags |= FLOW_IPV4;
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p->flow = &f;
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p->flowflags |= FLOW_PKT_TOSERVER;
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p->flowflags |= FLOW_PKT_ESTABLISHED;
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p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
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f.alproto = ALPROTO_HTTP;
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StreamTcpInitConfig(TRUE);
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de_ctx = DetectEngineCtxInit();
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if (de_ctx == NULL)
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goto end;
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de_ctx->flags |= DE_QUIET;
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de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
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"(msg:\"http header test\"; "
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"content:\"Content-Type: text/html\"; http_header; "
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"sid:1;)");
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if (de_ctx->sig_list == NULL)
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goto end;
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SigGroupBuild(de_ctx);
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DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
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SCMutexLock(&f.m);
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int r = AppLayerParse(NULL, &f, ALPROTO_HTTP, STREAM_TOSERVER, http_buf, http_len);
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if (r != 0) {
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printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
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result = 0;
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SCMutexUnlock(&f.m);
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goto end;
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}
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SCMutexUnlock(&f.m);
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http_state = f.alstate;
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if (http_state == NULL) {
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printf("no http state: ");
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result = 0;
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goto end;
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}
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/* do detect */
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SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
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if (!(PacketAlertCheck(p, 1))) {
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printf("sid 1 didn't match but should have: ");
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goto end;
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}
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result = 1;
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end:
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if (de_ctx != NULL)
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SigGroupCleanup(de_ctx);
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if (de_ctx != NULL)
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SigCleanSignatures(de_ctx);
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if (de_ctx != NULL)
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DetectEngineCtxFree(de_ctx);
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StreamTcpFreeConfig(TRUE);
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FLOW_DESTROY(&f);
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UTHFreePackets(&p, 1);
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return result;
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}
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/**
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*\test Test that the http_header content matches against a http request
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* which holds the content.
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*/
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static int DetectHttpHeaderTest07(void)
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{
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TcpSession ssn;
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Packet *p1 = NULL;
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Packet *p2 = NULL;
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ThreadVars th_v;
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DetectEngineCtx *de_ctx = NULL;
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DetectEngineThreadCtx *det_ctx = NULL;
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HtpState *http_state = NULL;
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Flow f;
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uint8_t http1_buf[] =
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"GET /index.html HTTP/1.0\r\n"
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"Host: www.openinfosecfoundation.org\r\n"
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"User-Agent: Mozi";
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uint8_t http2_buf[] =
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"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"
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"Content-Length: 67\r\n"
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"\r\n"
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"This is dummy message body1";
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uint32_t http1_len = sizeof(http1_buf) - 1;
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uint32_t http2_len = sizeof(http2_buf) - 1;
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int result = 0;
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memset(&th_v, 0, sizeof(th_v));
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memset(&f, 0, sizeof(f));
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memset(&ssn, 0, sizeof(ssn));
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p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
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p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
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FLOW_INITIALIZE(&f);
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f.protoctx = (void *)&ssn;
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f.flags |= FLOW_IPV4;
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p1->flow = &f;
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p1->flowflags |= FLOW_PKT_TOSERVER;
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p1->flowflags |= FLOW_PKT_ESTABLISHED;
|
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p1->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
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p2->flow = &f;
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p2->flowflags |= FLOW_PKT_TOSERVER;
|
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p2->flowflags |= FLOW_PKT_ESTABLISHED;
|
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p2->flags |= PKT_HAS_FLOW|PKT_STREAM_EST;
|
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f.alproto = ALPROTO_HTTP;
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|
|
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StreamTcpInitConfig(TRUE);
|
|
|
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de_ctx = DetectEngineCtxInit();
|
|
if (de_ctx == NULL)
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goto end;
|
|
|
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de_ctx->flags |= DE_QUIET;
|
|
|
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de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any "
|
|
"(msg:\"http header test\"; "
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"content:\"Mozilla\"; http_header; "
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"sid:1;)");
|
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if (de_ctx->sig_list == NULL)
|
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goto end;
|
|
|
|
SigGroupBuild(de_ctx);
|
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DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
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SCMutexLock(&f.m);
|
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int r = AppLayerParse(NULL, &f, ALPROTO_HTTP, STREAM_TOSERVER, http1_buf, http1_len);
|
|
if (r != 0) {
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printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
|
result = 0;
|
|
SCMutexUnlock(&f.m);
|
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goto end;
|
|
}
|
|
SCMutexUnlock(&f.m);
|
|
|
|
http_state = f.alstate;
|
|
if (http_state == NULL) {
|
|
printf("no http state: ");
|
|
result = 0;
|
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goto end;
|
|
}
|
|
|
|
/* do detect */
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
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|
|
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if ( (PacketAlertCheck(p1, 1))) {
|
|
printf("sid 1 matched but shouldn't have: ");
|
|
goto end;
|
|
}
|
|
|
|
SCMutexLock(&f.m);
|
|
r = AppLayerParse(NULL, &f, ALPROTO_HTTP, STREAM_TOSERVER, http2_buf, http2_len);
|
|
if (r != 0) {
|
|
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
|
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result = 0;
|
|
SCMutexUnlock(&f.m);
|
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goto end;
|
|
}
|
|
SCMutexUnlock(&f.m);
|
|
|
|
/* do detect */
|
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SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
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|
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if (!(PacketAlertCheck(p2, 1))) {
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printf("sid 1 didn't match but should have: ");
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goto end;
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|
}
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|
|
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result = 1;
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end:
|
|
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;
|
|
|
|
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.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 = AppLayerParse(NULL, &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 = AppLayerParse(NULL, &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 (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;
|
|
|
|
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.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 = AppLayerParse(NULL, &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 = AppLayerParse(NULL, &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 (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;
|
|
|
|
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.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 = AppLayerParse(NULL, &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 = AppLayerParse(NULL, &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 (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;
|
|
|
|
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.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 = AppLayerParse(NULL, &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 (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;
|
|
|
|
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.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 = AppLayerParse(NULL, &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 (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;
|
|
|
|
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.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 = AppLayerParse(NULL, &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 (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 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev->ctx;
|
|
DetectContentData *hhd2 = 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 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev->ctx;
|
|
DetectContentData *hhd2 = 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 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev->ctx;
|
|
DetectContentData *hhd2 = 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 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev->ctx;
|
|
DetectPcreData *pd2 = 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 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HHDMATCH]->prev->ctx;
|
|
DetectContentData *hhd2 = 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;
|
|
|
|
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.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 = AppLayerParse(NULL, &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 (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;
|
|
|
|
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.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 = AppLayerParse(NULL, &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 (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;
|
|
|
|
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.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 = AppLayerParse(NULL, &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 (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, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest02", DetectHttpHeaderTest02, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest03", DetectHttpHeaderTest03, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest04", DetectHttpHeaderTest04, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest05", DetectHttpHeaderTest05, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest06", DetectHttpHeaderTest06, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest07", DetectHttpHeaderTest07, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest08", DetectHttpHeaderTest08, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest09", DetectHttpHeaderTest09, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest10", DetectHttpHeaderTest10, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest11", DetectHttpHeaderTest11, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest12", DetectHttpHeaderTest12, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest13", DetectHttpHeaderTest13, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest20", DetectHttpHeaderTest20, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest21", DetectHttpHeaderTest21, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest22", DetectHttpHeaderTest22, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest23", DetectHttpHeaderTest23, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest24", DetectHttpHeaderTest24, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest25", DetectHttpHeaderTest25, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest26", DetectHttpHeaderTest26, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest27", DetectHttpHeaderTest27, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest28", DetectHttpHeaderTest28, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest29", DetectHttpHeaderTest29, 1);
|
|
UtRegisterTest("DetectHttpHeaderTest30", DetectHttpHeaderTest30, 1);
|
|
#endif /* UNITTESTS */
|
|
|
|
return;
|
|
}
|
|
/**
|
|
* @}
|
|
*/
|