diff options
Diffstat (limited to 'framework/src/suricata/src/detect-msg.c')
| -rw-r--r-- | framework/src/suricata/src/detect-msg.c | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/framework/src/suricata/src/detect-msg.c b/framework/src/suricata/src/detect-msg.c deleted file mode 100644 index e8b87529..00000000 --- a/framework/src/suricata/src/detect-msg.c +++ /dev/null @@ -1,211 +0,0 @@ -/* 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. - */ - -/** - * \file - * - * \author Victor Julien <victor@inliniac.net> - * - * Implements the msg keyword - */ - -#include "suricata-common.h" -#include "detect.h" -#include "util-classification-config.h" -#include "util-debug.h" -#include "util-unittest.h" - -#include "detect-parse.h" -#include "detect-engine.h" -#include "detect-engine-mpm.h" - -static int DetectMsgSetup (DetectEngineCtx *, Signature *, char *); -void DetectMsgRegisterTests(void); - -void DetectMsgRegister (void) -{ - sigmatch_table[DETECT_MSG].name = "msg"; - sigmatch_table[DETECT_MSG].desc = "information about the rule and the possible alert"; - sigmatch_table[DETECT_MSG].url = "https://redmine.openinfosecfoundation.org/projects/suricata/wiki/Meta-settings#msg-message"; - sigmatch_table[DETECT_MSG].Match = NULL; - sigmatch_table[DETECT_MSG].Setup = DetectMsgSetup; - sigmatch_table[DETECT_MSG].Free = NULL; - sigmatch_table[DETECT_MSG].RegisterTests = DetectMsgRegisterTests; -} - -static int DetectMsgSetup (DetectEngineCtx *de_ctx, Signature *s, char *msgstr) -{ - char *str = NULL; - uint16_t len; - - if (strlen(msgstr) == 0) - goto error; - - /* strip "'s */ - if (msgstr[0] == '\"' && msgstr[strlen(msgstr)-1] == '\"') { - str = SCStrdup(msgstr+1); - if (unlikely(str == NULL)) - goto error; - str[strlen(msgstr)-2] = '\0'; - } else if (msgstr[1] == '\"' && msgstr[strlen(msgstr)-1] == '\"') { - /* XXX do this parsing in a better way */ - str = SCStrdup(msgstr+2); - if (unlikely(str == NULL)) - goto error; - str[strlen(msgstr)-3] = '\0'; - //printf("DetectMsgSetup: format hack applied: \'%s\'\n", str); - } else { - SCLogError(SC_ERR_INVALID_VALUE, "format error \'%s\'", msgstr); - goto error; - } - - len = strlen(str); - if (len == 0) - goto error; - - char converted = 0; - - { - uint16_t i, x; - uint8_t escape = 0; - - /* it doesn't matter if we need to escape or not we remove the extra "\" to mimic snort */ - for (i = 0, x = 0; i < len; i++) { - //printf("str[%02u]: %c\n", i, str[i]); - if(!escape && str[i] == '\\') { - escape = 1; - } else if (escape) { - if (str[i] != ':' && - str[i] != ';' && - str[i] != '\\' && - str[i] != '\"') - { - SCLogDebug("character \"%c\" does not need to be escaped but is" ,str[i]); - } - escape = 0; - converted = 1; - - str[x] = str[i]; - x++; - }else{ - str[x] = str[i]; - x++; - } - - } -#if 0 //def DEBUG - if (SCLogDebugEnabled()) { - for (i = 0; i < x; i++) { - printf("%c", str[i]); - } - printf("\n"); - } -#endif - - if (converted) { - len = x; - str[len] = '\0'; - } - } - - s->msg = SCMalloc(len + 1); - if (s->msg == NULL) - goto error; - - strlcpy(s->msg, str, len + 1); - - SCFree(str); - return 0; - -error: - SCFree(str); - return -1; -} - -/* -------------------------------------Unittests-----------------------------*/ - -#ifdef UNITTESTS -static int DetectMsgParseTest01(void) -{ - int result = 0; - Signature *sig = NULL; - char *teststringparsed = "flow stateless to_server"; - DetectEngineCtx *de_ctx = DetectEngineCtxInit(); - if (de_ctx == NULL) - goto end; - - FILE *fd = SCClassConfGenerateValidDummyClassConfigFD01(); - SCClassConfLoadClassficationConfigFile(de_ctx, fd); - - sig = SigInit(de_ctx, "alert tcp any any -> any any (msg:\"flow stateless to_server\"; flow:stateless,to_server; content:\"flowstatelesscheck\"; classtype:bad-unknown; sid: 40000002; rev: 1;)"); - if(sig == NULL) - goto end; - - if (strcmp(sig->msg, teststringparsed) != 0) { - printf("got \"%s\", expected: \"%s\": ", sig->msg, teststringparsed); - goto end; - } - - result = 1; -end: - if (sig != NULL) - SigFree(sig); - if (de_ctx != NULL) - DetectEngineCtxFree(de_ctx); - return result; -} - -static int DetectMsgParseTest02(void) -{ - int result = 0; - Signature *sig = NULL; - char *teststringparsed = "msg escape tests wxy'\"\\;:"; - DetectEngineCtx *de_ctx = DetectEngineCtxInit(); - if (de_ctx == NULL) - goto end; - - sig = SigInit(de_ctx, "alert tcp any any -> any any (msg:\"msg escape tests \\w\\x\\y\\'\\\"\\\\;\\:\"; flow:to_server,established; content:\"blah\"; uricontent:\"/blah/\"; sid: 100;)"); - if(sig == NULL) - goto end; - - if (strcmp(sig->msg, teststringparsed) != 0) { - printf("got \"%s\", expected: \"%s\": ",sig->msg, teststringparsed); - goto end; - } - - result = 1; -end: - if (sig != NULL) - SigFree(sig); - if (de_ctx != NULL) - DetectEngineCtxFree(de_ctx); - return result; -} - -#endif /* UNITTESTS */ - -/** - * \brief this function registers unit tests for DetectMsg - */ -void DetectMsgRegisterTests(void) -{ -#ifdef UNITTESTS /* UNITTESTS */ - UtRegisterTest("DetectMsgParseTest01", DetectMsgParseTest01, 1); - UtRegisterTest("DetectMsgParseTest02", DetectMsgParseTest02, 1); -#endif /* UNITTESTS */ -} - |