From 8879b125d26e8db1a5633de5a9c692eb2d1c4f83 Mon Sep 17 00:00:00 2001 From: Ashlee Young Date: Wed, 9 Sep 2015 22:21:41 -0700 Subject: suricata checkin based on commit id a4bce14770beee46a537eda3c3f6e8e8565d5d0a Change-Id: I9a214fa0ee95e58fc640e50bd604dac7f42db48f --- framework/src/suricata/src/detect-http-raw-uri.c | 566 +++++++++++++++++++++++ 1 file changed, 566 insertions(+) create mode 100644 framework/src/suricata/src/detect-http-raw-uri.c (limited to 'framework/src/suricata/src/detect-http-raw-uri.c') diff --git a/framework/src/suricata/src/detect-http-raw-uri.c b/framework/src/suricata/src/detect-http-raw-uri.c new file mode 100644 index 00000000..e269686e --- /dev/null +++ b/framework/src/suricata/src/detect-http-raw-uri.c @@ -0,0 +1,566 @@ +/* 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 Anoop Saldanha + */ + +#include "suricata-common.h" +#include "threads.h" +#include "debug.h" +#include "decode.h" +#include "detect.h" + +#include "detect-parse.h" +#include "detect-engine.h" +#include "detect-engine-mpm.h" +#include "detect-content.h" +#include "detect-pcre.h" + +#include "flow.h" +#include "flow-var.h" + +#include "util-debug.h" +#include "util-unittest.h" +#include "util-spm.h" +#include "util-print.h" + +#include "app-layer.h" + +#include "app-layer-htp.h" +#include "detect-http-raw-uri.h" +#include "stream-tcp.h" + +static int DetectHttpRawUriSetup(DetectEngineCtx *, Signature *, char *); +static void DetectHttpRawUriRegisterTests(void); + +/** + * \brief Registration function for keyword http_raw_uri. + */ +void DetectHttpRawUriRegister(void) +{ + sigmatch_table[DETECT_AL_HTTP_RAW_URI].name = "http_raw_uri"; + sigmatch_table[DETECT_AL_HTTP_RAW_URI].desc = "content modifier to match on HTTP uri"; + sigmatch_table[DETECT_AL_HTTP_RAW_URI].url = "https://redmine.openinfosecfoundation.org/projects/suricata/wiki/HTTP-keywords#http_uri-and-http_raw_uri"; + sigmatch_table[DETECT_AL_HTTP_RAW_URI].Match = NULL; + sigmatch_table[DETECT_AL_HTTP_RAW_URI].AppLayerMatch = NULL; + sigmatch_table[DETECT_AL_HTTP_RAW_URI].alproto = ALPROTO_HTTP; + sigmatch_table[DETECT_AL_HTTP_RAW_URI].Setup = DetectHttpRawUriSetup; + sigmatch_table[DETECT_AL_HTTP_RAW_URI].Free = NULL; + sigmatch_table[DETECT_AL_HTTP_RAW_URI].RegisterTests = DetectHttpRawUriRegisterTests; + sigmatch_table[DETECT_AL_HTTP_RAW_URI].flags |= SIGMATCH_NOOPT; + sigmatch_table[DETECT_AL_HTTP_RAW_URI].flags |= SIGMATCH_PAYLOAD; + + return; +} + +/** + * \brief Sets up the http_raw_uri modifier keyword. + * + * \param de_ctx Pointer to the Detection Engine Context. + * \param s Pointer to the Signature to which the current keyword belongs. + * \param arg Should hold an empty string always. + * + * \retval 0 On success. + * \retval -1 On failure. + */ +static int DetectHttpRawUriSetup(DetectEngineCtx *de_ctx, Signature *s, char *arg) +{ + return DetectEngineContentModifierBufferSetup(de_ctx, s, arg, + DETECT_AL_HTTP_RAW_URI, + DETECT_SM_LIST_HRUDMATCH, + ALPROTO_HTTP, + NULL); +} + + +/******************************** UNITESTS **********************************/ + +#ifdef UNITTESTS + +#include "stream-tcp-reassemble.h" + +/** + * \test Checks if a http_raw_uri is registered in a Signature, if content is not + * specified in the signature. + */ +int DetectHttpRawUriTest01(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 tcp any any -> any any " + "(msg:\"Testing http_raw_uri\"; http_raw_uri; sid:1;)"); + if (de_ctx->sig_list == NULL) + result = 1; + +end: + if (de_ctx != NULL) + DetectEngineCtxFree(de_ctx); + return result; +} + +/** + * \test Checks if a http_raw_uri is registered in a Signature, if some parameter + * is specified with http_raw_uri in the signature. + */ +int DetectHttpRawUriTest02(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 tcp any any -> any any " + "(msg:\"Testing http_raw_uri\"; content:\"one\"; " + "http_raw_uri:wrong; sid:1;)"); + if (de_ctx->sig_list == NULL) + result = 1; + +end: + if (de_ctx != NULL) + DetectEngineCtxFree(de_ctx); + return result; +} + +/** + * \test Checks if a http_raw_uri is registered in a Signature. + */ +int DetectHttpRawUriTest03(void) +{ + SigMatch *sm = NULL; + 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 tcp any any -> any any " + "(msg:\"Testing http_raw_uri\"; " + "content:\"one\"; http_raw_uri; " + "content:\"two\"; http_raw_uri; " + "content:\"three\"; http_raw_uri; " + "sid:1;)"); + if (de_ctx->sig_list == NULL) { + printf("sig parse failed: "); + goto end; + } + + sm = de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HRUDMATCH]; + if (sm == NULL) { + printf("no sigmatch(es): "); + goto end; + } + + while (sm != NULL) { + if (sm->type == DETECT_CONTENT) { + result = 1; + } else { + printf("expected DETECT_CONTENT for http_raw_uri(%d), got %d: ", + DETECT_CONTENT, sm->type); + goto end; + } + sm = sm->next; + } + +end: + if (de_ctx != NULL) + DetectEngineCtxFree(de_ctx); + return result; +} + +/** + * \test Checks if a http_raw_uri is registered in a Signature, when rawbytes is + * also specified in the signature. + */ +int DetectHttpRawUriTest04(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 tcp any any -> any any " + "(msg:\"Testing http_raw_uri\"; " + "content:\"one\"; rawbytes; http_raw_uri; " + "sid:1;)"); + if (de_ctx->sig_list == NULL) + result = 1; + + end: + if (de_ctx != NULL) + SigCleanSignatures(de_ctx); + if (de_ctx != NULL) + DetectEngineCtxFree(de_ctx); + return result; +} + +/** + * \test Checks if a http_raw_uri is successfully converted to a rawuricontent. + * + */ +int DetectHttpRawUriTest05(void) +{ + DetectEngineCtx *de_ctx = NULL; + Signature *s = NULL; + int result = 0; + + if ((de_ctx = DetectEngineCtxInit()) == NULL) + goto end; + + s = SigInit(de_ctx, "alert tcp any any -> any any " + "(msg:\"Testing http_raw_uri\"; " + "content:\"we are testing http_raw_uri keyword\"; http_raw_uri; " + "sid:1;)"); + if (s == NULL) { + printf("sig failed to parse\n"); + goto end; + } + if (s->sm_lists[DETECT_SM_LIST_HRUDMATCH] == NULL) + goto end; + if (s->sm_lists[DETECT_SM_LIST_HRUDMATCH]->type != DETECT_CONTENT) { + printf("wrong type\n"); + goto end; + } + + char *str = "we are testing http_raw_uri keyword"; + int uricomp = memcmp((const char *) + ((DetectContentData*)s->sm_lists[DETECT_SM_LIST_HRUDMATCH]->ctx)->content, + str, + strlen(str) - 1); + int urilen = ((DetectContentData*)s->sm_lists_tail[DETECT_SM_LIST_HRUDMATCH]->ctx)->content_len; + if (uricomp != 0 || + urilen != strlen("we are testing http_raw_uri keyword")) { + printf("sig failed to parse, content not setup properly\n"); + goto end; + } + result = 1; + +end: + if (de_ctx != NULL) + SigCleanSignatures(de_ctx); + if (de_ctx != NULL) + SigGroupCleanup(de_ctx); + return result; +} + +int DetectHttpRawUriTest12(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_raw_uri; " + "content:\"two\"; distance:0; http_raw_uri; 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_HRUDMATCH] == NULL) { + printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HRUDMATCH] == NULL\n"); + goto end; + } + + DetectContentData *ud1 = + (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HRUDMATCH]->prev->ctx; + DetectContentData *ud2 = + (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HRUDMATCH]->ctx; + if (ud1->flags != DETECT_CONTENT_RELATIVE_NEXT || + memcmp(ud1->content, "one", ud1->content_len) != 0 || + ud2->flags != DETECT_CONTENT_DISTANCE || + memcmp(ud2->content, "two", ud1->content_len) != 0) { + /* inside body */ + goto end; + } + + result = 1; + + end: + SigCleanSignatures(de_ctx); + DetectEngineCtxFree(de_ctx); + return result; +} + +int DetectHttpRawUriTest13(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_raw_uri; " + "content:\"two\"; within:5; http_raw_uri; 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_HRUDMATCH] == NULL) { + printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HRUDMATCH] == NULL\n"); + goto end; + } + + DetectContentData *ud1 = + (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HRUDMATCH]->prev->ctx; + DetectContentData *ud2 = + (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HRUDMATCH]->ctx; + if (ud1->flags != DETECT_CONTENT_RELATIVE_NEXT || + memcmp(ud1->content, "one", ud1->content_len) != 0 || + ud2->flags != DETECT_CONTENT_WITHIN || + memcmp(ud2->content, "two", ud1->content_len) != 0) { + /* inside the body */ + goto end; + } + + result = 1; + + end: + SigCleanSignatures(de_ctx); + DetectEngineCtxFree(de_ctx); + return result; +} + +int DetectHttpRawUriTest14(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_raw_uri; 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 DetectHttpRawUriTest15(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_raw_uri; 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 DetectHttpRawUriTest16(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 DetectHttpRawUriTest17(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_raw_uri; " + "content:\"two\"; distance:0; http_raw_uri; 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_HRUDMATCH] == NULL) { + printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HRUDMATCH] == NULL\n"); + goto end; + } + + DetectContentData *ud1 = + (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HRUDMATCH]->prev->ctx; + DetectContentData *ud2 = + (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HRUDMATCH]->ctx; + if (ud1->flags != DETECT_CONTENT_RELATIVE_NEXT || + memcmp(ud1->content, "one", ud1->content_len) != 0 || + ud2->flags != DETECT_CONTENT_DISTANCE || + memcmp(ud2->content, "two", ud1->content_len) != 0) { + /* inside body */ + goto end; + } + + result = 1; + + end: + SigCleanSignatures(de_ctx); + DetectEngineCtxFree(de_ctx); + return result; +} + +int DetectHttpRawUriTest18(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_raw_uri; " + "content:\"two\"; within:5; http_raw_uri; " + "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_HRUDMATCH] == NULL) { + printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HRUDMATCH] == NULL\n"); + goto end; + } + + DetectContentData *ud1 = + (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HRUDMATCH]->prev->ctx; + DetectContentData *ud2 = + (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_HRUDMATCH]->ctx; + if (ud1->flags != DETECT_CONTENT_RELATIVE_NEXT || + memcmp(ud1->content, "one", ud1->content_len) != 0 || + ud2->flags != DETECT_CONTENT_WITHIN || + memcmp(ud2->content, "two", ud1->content_len) != 0) { + /* inside body */ + goto end; + } + + result = 1; + + end: + SigCleanSignatures(de_ctx); + DetectEngineCtxFree(de_ctx); + return result; +} + +#endif /* UNITTESTS */ + +/** + * \brief Register the UNITTESTS for the http_uri keyword + */ +static void DetectHttpRawUriRegisterTests (void) +{ +#ifdef UNITTESTS /* UNITTESTS */ + UtRegisterTest("DetectHttpRawUriTest01", DetectHttpRawUriTest01, 1); + UtRegisterTest("DetectHttpRawUriTest02", DetectHttpRawUriTest02, 1); + UtRegisterTest("DetectHttpRawUriTest03", DetectHttpRawUriTest03, 1); + UtRegisterTest("DetectHttpRawUriTest04", DetectHttpRawUriTest04, 1); + UtRegisterTest("DetectHttpRawUriTest05", DetectHttpRawUriTest05, 1); + UtRegisterTest("DetectHttpRawUriTest12", DetectHttpRawUriTest12, 1); + UtRegisterTest("DetectHttpRawUriTest13", DetectHttpRawUriTest13, 1); + UtRegisterTest("DetectHttpRawUriTest14", DetectHttpRawUriTest14, 1); + UtRegisterTest("DetectHttpRawUriTest15", DetectHttpRawUriTest15, 1); + UtRegisterTest("DetectHttpRawUriTest16", DetectHttpRawUriTest16, 1); + UtRegisterTest("DetectHttpRawUriTest17", DetectHttpRawUriTest17, 1); + UtRegisterTest("DetectHttpRawUriTest18", DetectHttpRawUriTest18, 1); +#endif /* UNITTESTS */ + + return; +} +/** + * @} + */ -- cgit 1.2.3-korg