--- /dev/null
+/* Copyright (C) 2020 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 Jeff Lucovsky <jeff@lucovsky.org>
+ */
+
+/*
+ * Refer to the Snort manual, section 3.5.34 for details.
+ */
+
+#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 "detect-byte.h"
+#include "detect-bytemath.h"
+#include "detect-isdataat.h"
+
+#include "app-layer-protos.h"
+
+#include "flow.h"
+#include "flow-var.h"
+#include "flow-util.h"
+
+#include "util-byte.h"
+#include "util-debug.h"
+#include "util-unittest.h"
+#include "util-unittest-helper.h"
+#include "util-spm.h"
+
+/* the default value of endianess to be used, if none's specified */
+#define DETECT_BYTEMATH_ENDIAN_DEFAULT DETECT_BYTEMATH_ENDIAN_BIG
+
+/* the base to be used if string mode is specified. These options would be
+ * specified in DetectByteMathData->base */
+#define DETECT_BYTEMATH_BASE_NONE 0
+#define DETECT_BYTEMATH_BASE_OCT 8
+#define DETECT_BYTEMATH_BASE_DEC 10
+#define DETECT_BYTEMATH_BASE_HEX 16
+#define DETECT_BYTEMATH_BASE_DEFAULT DETECT_BYTEMATH_BASE_DEC
+
+/* the max no of bytes that can be extracted in string mode - (string, hex)
+ * (string, oct) or (string, dec) */
+#define STRING_MAX_BYTES_TO_EXTRACT_FOR_OCT 23
+#define STRING_MAX_BYTES_TO_EXTRACT_FOR_DEC 20
+#define STRING_MAX_BYTES_TO_EXTRACT_FOR_HEX 14
+
+/* the max no of bytes that can be extracted in non-string mode */
+#define NO_STRING_MAX_BYTES_TO_EXTRACT 4
+
+#define PARSE_REGEX "^" \
+ "\\s*(bytes)\\s*(\\d+)\\s*" \
+ ",\\s*(offset)\\s*(\\d+)\\s*" \
+ ",\\s*(oper)\\s*([-+\\/]{1}|<<|>>)\\s*" \
+ ",\\s*(rvalue)\\s*(\\w+)\\s*" \
+ ",\\s*(result)\\s*(\\w+)\\s*" \
+ "(?:,\\s*(relative)\\s*)?" \
+ "(?:,\\s*(endian)\\s*(big|little)\\s*)?" \
+ "(?:,\\s*(string)\\s*(hex|dec|oct)\\s*)?" \
+ "(?:,\\s*(dce)\\s*)?" \
+ "(?:,\\s*(bitmask)\\s*(0?[xX]?[0-9a-fA-F]{2,8})\\s*)?" \
+ "$"
+
+/* Mandatory value group numbers -- kw values not needed */
+//#define BYTES_KW 1
+#define BYTES_VAL 2
+//#define OFFSET_KW 3
+#define OFFSET_VAL 4
+//#define OPER_KW 5
+#define OPER_VAL 6
+//#define RVALUE_KW 7
+#define RVALUE_VAL 8
+//#define RESULT_KW 9
+#define RESULT_VAL 10
+
+/* Optional value group numbers */
+#define RELATIVE_KW 11
+#define ENDIAN_KW 12
+#define ENDIAN_VAL 13
+#define STRING_KW 14
+#define STRING_VAL 15
+#define DCE_KW 16
+#define BITMASK_KW 17
+#define BITMASK_VAL 18
+
+#define MIN_GROUP 10
+#define MAX_GROUP 19
+
+static DetectParseRegex parse_regex;
+
+static int DetectByteMathSetup(DetectEngineCtx *, Signature *, const char *);
+static void DetectByteMathRegisterTests(void);
+static void DetectByteMathFree(DetectEngineCtx *, void *);
+
+/**
+ * \brief Registers the keyword handlers for the "byte_math" keyword.
+ */
+void DetectBytemathRegister(void)
+{
+ sigmatch_table[DETECT_BYTEMATH].name = "byte_math";
+ sigmatch_table[DETECT_BYTEMATH].Match = NULL;
+ sigmatch_table[DETECT_BYTEMATH].Setup = DetectByteMathSetup;
+ sigmatch_table[DETECT_BYTEMATH].Free = DetectByteMathFree;
+ sigmatch_table[DETECT_BYTEMATH].RegisterTests = DetectByteMathRegisterTests;
+
+ DetectSetupParseRegexes(PARSE_REGEX, &parse_regex);
+}
+
+int DetectByteMathDoMatch(DetectEngineThreadCtx *det_ctx, const SigMatchData *smd,
+ const Signature *s, const uint8_t *payload,
+ uint16_t payload_len, uint64_t rvalue, uint64_t *value, uint8_t endian)
+{
+ const DetectByteMathData *data = (DetectByteMathData *)smd->ctx;
+ const uint8_t *ptr;
+ int32_t len;
+ uint64_t val;
+ int extbytes;
+
+ if (payload_len == 0) {
+ return 0;
+ }
+
+ /* Calculate the ptr value for the byte-math op and length remaining in
+ * the packet from that point.
+ */
+ if (data->flags & DETECT_BYTEMATH_FLAG_RELATIVE) {
+ SCLogDebug("relative, working with det_ctx->buffer_offset %"PRIu32", "
+ "data->offset %"PRIu32"", det_ctx->buffer_offset, data->offset);
+
+ ptr = payload + det_ctx->buffer_offset;
+ len = payload_len - det_ctx->buffer_offset;
+
+ ptr += data->offset;
+ len -= data->offset;
+
+ /* No match if there is no relative base */
+ if (len <= 0) {
+ return 0;
+ }
+ } else {
+ SCLogDebug("absolute, data->offset %"PRIu32"", data->offset);
+
+ ptr = payload + data->offset;
+ len = payload_len - data->offset;
+ }
+
+ /* Validate that the to-be-extracted is within the packet */
+ if (ptr < payload || data->nbytes > len) {
+ SCLogDebug("Data not within payload pkt=%p, ptr=%p, len=%"PRIu32", nbytes=%d",
+ payload, ptr, len, data->nbytes);
+ return 0;
+ }
+
+ /* Extract the byte data */
+ if (data->flags & DETECT_BYTEMATH_FLAG_STRING) {
+ extbytes = ByteExtractStringUint64(&val, data->base,
+ data->nbytes, (const char *)ptr);
+ if (extbytes <= 0) {
+ if (val == 0) {
+ SCLogDebug("No Numeric value");
+ return 0;
+ } else {
+ SCLogDebug("error extracting %d bytes of string data: %d",
+ data->nbytes, extbytes);
+ return -1;
+ }
+ }
+ } else {
+ int endianness = (endian == DETECT_BYTEMATH_ENDIAN_BIG) ?
+ BYTE_BIG_ENDIAN : BYTE_LITTLE_ENDIAN;
+ extbytes = ByteExtractUint64(&val, endianness, data->nbytes, ptr);
+ if (extbytes != data->nbytes) {
+ SCLogDebug("error extracting %d bytes of numeric data: %d",
+ data->nbytes, extbytes);
+ return 0;
+ }
+ }
+
+ BUG_ON(extbytes > len);
+
+ ptr += extbytes;
+ det_ctx->buffer_offset = ptr - payload;
+
+ switch (data->oper) {
+ case DETECT_BYTEMATH_OPERATOR_NONE:
+ break;
+ case DETECT_BYTEMATH_OPERATOR_PLUS:
+ val += rvalue;
+ break;
+ case DETECT_BYTEMATH_OPERATOR_MINUS:
+ val -= rvalue;
+ break;
+ case DETECT_BYTEMATH_OPERATOR_DIVIDE:
+ val /= rvalue;
+ break;
+ case DETECT_BYTEMATH_OPERATOR_MULTIPLY:
+ val *= rvalue;
+ break;
+ case DETECT_BYTEMATH_OPERATOR_LSHIFT:
+ val <<= rvalue;
+ break;
+ case DETECT_BYTEMATH_OPERATOR_RSHIFT:
+ val >>= rvalue;
+ break;
+ }
+
+ if (data->flags & DETECT_BYTEMATH_FLAG_BITMASK) {
+ val &= data->bitmask_val;
+ if (val && data->bitmask_shift_count) {
+ val = val >> data->bitmask_shift_count;
+ }
+ }
+
+ *value = val;
+ return 1;
+}
+
+/**
+ * \internal
+ * \brief Used to parse byte_math arg.
+ *
+ * \param arg The argument to parse.
+ * \param rvalue May be NULL. When non-null, will contain the variable
+ * name of rvalue (iff rvalue is not a scalar value)
+ *
+ * \retval bmd On success an instance containing the parsed data.
+ * On failure, NULL.
+ */
+static DetectByteMathData *DetectByteMathParse(DetectEngineCtx *de_ctx, const char *arg, char **rvalue)
+{
+ DetectByteMathData *bmd = NULL;
+ int ret, res;
+#undef MAX_SUBSTRINGS
+#define MAX_SUBSTRINGS 100
+ int ov[MAX_SUBSTRINGS];
+ char tmp_str[128];
+
+ ret = DetectParsePcreExec(&parse_regex, arg, 0, 0, ov, MAX_SUBSTRINGS);
+ if (ret < MIN_GROUP || ret > MAX_GROUP) {
+ SCLogError(SC_ERR_PCRE_PARSE, "byte_math parse error; invalid value: ret %" PRId32
+ ", string \"%s\"", ret, arg);
+ goto error;
+ }
+
+ bmd = SCCalloc(1, sizeof(DetectByteMathData));
+ if (unlikely(bmd == NULL))
+ goto error;
+
+ /* no of bytes to extract */
+ res = pcre_copy_substring((char *)arg, ov,
+ MAX_SUBSTRINGS, BYTES_VAL, tmp_str, sizeof(tmp_str));
+ if (res < 0) {
+ SCLogError(SC_ERR_PCRE_GET_SUBSTRING, "pcre_copy_substring failed "
+ "for \"nbytes\" value: \"%s\"", tmp_str);
+ goto error;
+ }
+
+ res = ByteExtractStringUint8(&bmd->nbytes, 10,
+ strlen(tmp_str),
+ (const char *)tmp_str);
+ if (res < 1 || bmd->nbytes > 10) {
+ SCLogError(SC_ERR_INVALID_SIGNATURE, "byte_math invalid bytes "
+ "value \"%s\" specified.", tmp_str);
+ goto error;
+ }
+
+ /* offset */
+ res = pcre_copy_substring((char *)arg, ov,
+ MAX_SUBSTRINGS, OFFSET_VAL, tmp_str, sizeof(tmp_str));
+ if (res < 0) {
+ SCLogError(SC_ERR_PCRE_GET_SUBSTRING, "pcre_copy_substring failed "
+ "for \"offset\" value: \"%s\"", tmp_str);
+ goto error;
+ }
+
+ if (ByteExtractStringUint16(&bmd->offset, 10, strlen(tmp_str), (const char *)tmp_str) < 0) {
+ SCLogError(SC_ERR_INVALID_SIGNATURE, "byte_math invalid offset "
+ "value \"%s\"", tmp_str);
+ goto error;
+ }
+
+ /* operator */
+ res = pcre_copy_substring((char *)arg, ov,
+ MAX_SUBSTRINGS, OPER_VAL, tmp_str, sizeof(tmp_str));
+ if (res < 0) {
+ SCLogError(SC_ERR_PCRE_GET_SUBSTRING, "pcre_copy_substring failed "
+ "for \"operator\" value of byte_math: \"%s\"", tmp_str);
+ goto error;
+ }
+
+ if (strcmp(tmp_str, "+") == 0) {
+ bmd->oper = DETECT_BYTEMATH_OPERATOR_PLUS;
+ } else if (strcmp(tmp_str, "-") == 0) {
+ bmd->oper = DETECT_BYTEMATH_OPERATOR_MINUS;
+ } else if (strcmp(tmp_str, "/") == 0) {
+ bmd->oper = DETECT_BYTEMATH_OPERATOR_DIVIDE;
+ } else if (strcmp(tmp_str, "*") == 0) {
+ bmd->oper = DETECT_BYTEMATH_OPERATOR_MULTIPLY;
+ } else if (strcmp(tmp_str, "<<") == 0) {
+ bmd->oper = DETECT_BYTEMATH_OPERATOR_LSHIFT;
+ } else if (strcmp(tmp_str, ">>") == 0) {
+ bmd->oper = DETECT_BYTEMATH_OPERATOR_RSHIFT;
+ }
+
+ /* rvalue */
+ res = pcre_copy_substring((char *)arg, ov, MAX_SUBSTRINGS,
+ RVALUE_VAL, tmp_str, sizeof(tmp_str));
+ if (res < 0) {
+ SCLogError(SC_ERR_PCRE_GET_SUBSTRING, "pcre_copy_substring failed "
+ "for \"rvalue\" to byte_math: \"%s\"", tmp_str);
+ goto error;
+ }
+
+ if (*tmp_str != '-' && isalpha((unsigned char)*tmp_str)) {
+ if (rvalue == NULL) {
+ SCLogError(SC_ERR_INVALID_SIGNATURE, "byte_math supplied with "
+ "var name for rvalue. \"rvalue\" argument supplied to "
+ "this function must be non-NULL");
+ goto error;
+ }
+ *rvalue = SCStrdup(tmp_str);
+ if (*rvalue == NULL) {
+ goto error;
+ }
+ } else {
+ if (ByteExtractStringUint32(&bmd->rvalue, 10, strlen(tmp_str), (const char *)tmp_str) < 0) {
+ SCLogError(SC_ERR_INVALID_SIGNATURE, "byte_math invalid rvalue "
+ "value \"%s\"", tmp_str);
+ goto error;
+ }
+ }
+
+ /* result */
+ res = pcre_copy_substring((char *)arg, ov, MAX_SUBSTRINGS,
+ RESULT_VAL, tmp_str, sizeof(tmp_str));
+ if (res < 0) {
+ SCLogError(SC_ERR_PCRE_GET_SUBSTRING, "pcre_copy_substring failed "
+ "for \"result\" to byte_math");
+ goto error;
+ }
+ if (!isalpha(*tmp_str)) {
+ SCLogError(SC_ERR_INVALID_SIGNATURE, "byte_math result must be "
+ "a variable name. Unable to find \"%s\"", tmp_str);
+ goto error;
+ }
+
+ bmd->result = SCStrdup(tmp_str);
+ if (bmd->result == NULL)
+ goto error;
+
+ /* optional value handling:
+ * relative - 11
+ * endian <val> - 12-13
+ * string <val> - 14-15
+ * dce - 16
+ * bitmask <val> - 17-18
+ */
+
+ if (ret > RELATIVE_KW) {
+ res = pcre_copy_substring((char *)arg, ov, MAX_SUBSTRINGS,
+ RELATIVE_KW, tmp_str, sizeof(tmp_str));
+
+ if (res < 0) {
+ SCLogError(SC_ERR_PCRE_GET_SUBSTRING, "pcre_copy_substring failed "
+ "for byte_math \"relative\" arg");
+ goto error;
+ }
+
+ if (tmp_str[0] != '\0') {
+ bmd->flags |= DETECT_BYTEMATH_FLAG_RELATIVE;
+ }
+ }
+
+ if (ret > ENDIAN_VAL) {
+ res = pcre_copy_substring((char *)arg, ov, MAX_SUBSTRINGS,
+ ENDIAN_KW, tmp_str, sizeof(tmp_str));
+ if (res < 0) {
+ SCLogError(SC_ERR_PCRE_GET_SUBSTRING, "pcre_copy_substring failed "
+ "for byte_math \"endian\" arg");
+ goto error;
+ }
+
+ if (tmp_str[0] != '\0') {
+ bmd->flags |= DETECT_BYTEMATH_FLAG_ENDIAN;
+ }
+
+ res = pcre_copy_substring((char *)arg, ov, MAX_SUBSTRINGS,
+ ENDIAN_VAL, tmp_str, sizeof(tmp_str));
+ if (res < 0) {
+ SCLogError(SC_ERR_PCRE_GET_SUBSTRING, "pcre_copy_substring failed "
+ "for byte_math \"endian\" value");
+ goto error;
+ }
+
+ /* Since the parse succeeded, there's a value */
+ if (strcmp("big", tmp_str) == 0)
+ bmd->endian = DETECT_BYTEMATH_ENDIAN_BIG;
+ else if (strcmp("little", tmp_str) == 0)
+ bmd->endian = DETECT_BYTEMATH_ENDIAN_LITTLE;
+ }
+
+ if (ret > STRING_VAL) {
+ res = pcre_copy_substring((char *)arg, ov, MAX_SUBSTRINGS,
+ STRING_KW, tmp_str, sizeof(tmp_str));
+ if (res < 0) {
+ SCLogError(SC_ERR_PCRE_GET_SUBSTRING, "pcre_copy_substring failed "
+ "for byte_math \"string\" arg");
+ goto error;
+ }
+
+ if (tmp_str[0] != '\0') {
+ bmd->flags |= DETECT_BYTEMATH_FLAG_STRING;
+ }
+
+ res = pcre_copy_substring((char *)arg, ov, MAX_SUBSTRINGS,
+ STRING_VAL, tmp_str, sizeof(tmp_str));
+ if (res < 0) {
+ SCLogError(SC_ERR_PCRE_GET_SUBSTRING, "pcre_copy_substring failed "
+ "for byte_math \"string\" value");
+ goto error;
+ }
+
+ /* Since the parse succeeded, there's a value */
+ if (strcmp("hex", tmp_str) == 0) {
+ bmd->base = DETECT_BYTEMATH_BASE_HEX;
+ } else if (strcmp("oct", tmp_str) == 0) {
+ bmd->base = DETECT_BYTEMATH_BASE_OCT;
+ } else if (strcmp("dec", tmp_str) == 0) {
+ bmd->base = DETECT_BYTEMATH_BASE_DEC;
+ }
+ }
+
+ if (ret > DCE_KW) {
+ res = pcre_copy_substring((char *)arg, ov, MAX_SUBSTRINGS,
+ DCE_KW, tmp_str, sizeof(tmp_str));
+ if (res < 0) {
+ SCLogError(SC_ERR_PCRE_GET_SUBSTRING, "pcre_copy_substring failed "
+ "for byte_math \"dce\" arg");
+ goto error;
+ }
+
+ if (tmp_str[0] != '\0') {
+ bmd->flags |= DETECT_BYTEMATH_FLAG_ENDIAN;
+ bmd->endian = DETECT_BYTEMATH_ENDIAN_DCE;
+ }
+ }
+
+ if (ret > BITMASK_VAL) {
+ res = pcre_copy_substring((char *)arg, ov, MAX_SUBSTRINGS,
+ BITMASK_KW, tmp_str, sizeof(tmp_str));
+ if (res < 0) {
+ SCLogError(SC_ERR_PCRE_GET_SUBSTRING, "pcre_copy_substring failed "
+ "for byte_math \"bitmask\" arg");
+ goto error;
+ }
+
+ if (tmp_str[0] != '\0') {
+ bmd->flags |= DETECT_BYTEMATH_FLAG_BITMASK;
+ }
+
+ /* bitmask value*/
+ res = pcre_copy_substring((char *)arg, ov, MAX_SUBSTRINGS,
+ BITMASK_VAL, tmp_str, sizeof(tmp_str));
+ if (res < 0) {
+ SCLogError(SC_ERR_PCRE_GET_SUBSTRING, "pcre_copy_substring failed "
+ "for bitmask value: \"%s\"", tmp_str);
+ goto error;
+ }
+
+ res = ByteExtractStringUint32(&bmd->bitmask_val, 16, strlen(tmp_str), tmp_str);
+ if (res < 0) {
+ SCLogError(SC_ERR_INVALID_SIGNATURE, "Unable to extract bitmask "
+ "value: \"%s\"", tmp_str);
+ goto error;
+ }
+
+ /* determine how many trailing 0's are in the bitmask. This will be used
+ * to rshift the value after applying the bitmask
+ */
+ bmd->bitmask_shift_count = 0;
+ if (bmd->bitmask_val) {
+ uint32_t bmask = bmd->bitmask_val;
+ while (!(bmask & 0x1)){
+ bmask = bmask >> 1;
+ bmd->bitmask_shift_count++;
+ }
+ }
+ }
+
+ if (bmd->endian == DETECT_BYTEMATH_ENDIAN_DCE) {
+ switch (bmd->nbytes) {
+ case 1:
+ case 2:
+ case 4:
+ break;
+ default:
+ SCLogError(SC_ERR_INVALID_SIGNATURE, "nbytes must be 1, 2, or 4 "
+ "when used with \"dce\"; %d is not valid", bmd->nbytes);
+ goto error;
+ break;
+ }
+ }
+
+ switch (bmd->oper) {
+ case DETECT_BYTEMATH_OPERATOR_LSHIFT:
+ case DETECT_BYTEMATH_OPERATOR_RSHIFT:
+ /* nbytes has already been validated to be in the range [1, 10] */
+ if (bmd->nbytes > 4) {
+ SCLogError(SC_ERR_INVALID_SIGNATURE, "nbytes must be 1 through 4 (inclusive) "
+ "when used with \"<<\" or \">>\"; %d is not valid", bmd->nbytes);
+ goto error;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ /* Set defaults for endian and base if needed */
+ if (!(bmd->flags & DETECT_BYTEMATH_FLAG_ENDIAN)) {
+ bmd->endian = DETECT_BYTEMATH_ENDIAN_DEFAULT;
+ }
+ if (!(bmd->flags & DETECT_BYTEMATH_FLAG_STRING)) {
+ bmd->base = DETECT_BYTEMATH_BASE_DEFAULT;
+ }
+
+ return bmd;
+
+ error:
+ if (bmd != NULL)
+ DetectByteMathFree(de_ctx, bmd);
+ return NULL;
+}
+
+/**
+ * \brief The setup function for the byte_math 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 arg Pointer to the string holding the keyword value.
+ *
+ * \retval 0 On success.
+ * \retval -1 On failure.
+ */
+static int DetectByteMathSetup(DetectEngineCtx *de_ctx, Signature *s, const char *arg)
+{
+ SigMatch *sm = NULL;
+ SigMatch *prev_pm = NULL;
+ DetectByteMathData *data;
+ char *rvalue = NULL;
+ int ret = -1;
+
+ data = DetectByteMathParse(de_ctx, arg, &rvalue);
+ if (data == NULL)
+ goto error;
+
+ int sm_list;
+ if (s->init_data->list != DETECT_SM_LIST_NOTSET) {
+ if (DetectBufferGetActiveList(de_ctx, s) == -1)
+ goto error;
+
+ sm_list = s->init_data->list;
+
+ if (data->flags & DETECT_BYTEMATH_FLAG_RELATIVE) {
+ prev_pm = DetectGetLastSMFromLists(s, DETECT_CONTENT, DETECT_PCRE, -1);
+ if (!prev_pm) {
+ SCLogError(SC_ERR_INVALID_SIGNATURE, "relative specified without "
+ "previous pattern match");
+ goto error;
+ }
+ }
+ } else if (data->endian == DETECT_BYTEMATH_ENDIAN_DCE) {
+ if (data->flags & DETECT_BYTEMATH_FLAG_RELATIVE) {
+ prev_pm = DetectGetLastSMFromLists(s, DETECT_CONTENT, DETECT_PCRE,
+ DETECT_BYTETEST, DETECT_BYTEJUMP,
+ DETECT_BYTE_EXTRACT,
+ DETECT_BYTEMATH,
+ DETECT_ISDATAAT, -1);
+ if (prev_pm == NULL) {
+ sm_list = DETECT_SM_LIST_PMATCH;
+ } else {
+ sm_list = SigMatchListSMBelongsTo(s, prev_pm);
+ if (sm_list < 0)
+ goto error;
+ }
+ } else {
+ sm_list = DETECT_SM_LIST_PMATCH;
+ }
+
+ if (DetectSignatureSetAppProto(s, ALPROTO_DCERPC) < 0)
+ goto error;
+ s->flags |= SIG_FLAG_APPLAYER;
+
+ } else if (data->flags & DETECT_BYTEMATH_FLAG_RELATIVE) {
+ prev_pm = DetectGetLastSMFromLists(s, DETECT_CONTENT, DETECT_PCRE,
+ DETECT_BYTETEST, DETECT_BYTEJUMP,
+ DETECT_BYTE_EXTRACT, DETECT_BYTEMATH,
+ DETECT_ISDATAAT, -1);
+ if (prev_pm == NULL) {
+ sm_list = DETECT_SM_LIST_PMATCH;
+ } else {
+ sm_list = SigMatchListSMBelongsTo(s, prev_pm);
+ if (sm_list < 0)
+ goto error;
+ if (sm_list != DETECT_SM_LIST_PMATCH)
+ s->flags |= SIG_FLAG_APPLAYER;
+ }
+
+ } else {
+ sm_list = DETECT_SM_LIST_PMATCH;
+ }
+
+ if (data->endian == DETECT_BYTEMATH_ENDIAN_DCE) {
+ if (DetectSignatureSetAppProto(s, ALPROTO_DCERPC) != 0)
+ goto error;
+
+ if ((data->flags & DETECT_BYTEMATH_FLAG_STRING) ||
+ (data->base == DETECT_BYTEMATH_BASE_DEC) ||
+ (data->base == DETECT_BYTEMATH_BASE_HEX) ||
+ (data->base == DETECT_BYTEMATH_BASE_OCT) ) {
+ SCLogError(SC_ERR_CONFLICTING_RULE_KEYWORDS, "Invalid option. "
+ "A bytemath keyword with dce holds other invalid modifiers.");
+ goto error;
+ }
+ }
+
+ if (rvalue != NULL) {
+ DetectByteIndexType index;
+ if (!DetectByteRetrieveSMVar(rvalue, s, &index)) {
+ SCLogError(SC_ERR_INVALID_SIGNATURE, "unknown byte_ keyword var "
+ "seen in byte_math - %s\n", rvalue);
+ goto error;
+ }
+ data->rvalue = index;
+ data->flags |= DETECT_BYTEMATH_RVALUE_VAR;
+ SCFree(rvalue);
+ rvalue = NULL;
+ }
+
+ SigMatch *prev_bmd_sm = DetectGetLastSMByListId(s, sm_list,
+ DETECT_BYTEMATH, -1);
+ if (prev_bmd_sm == NULL) {
+ data->local_id = 0;
+ } else {
+ data->local_id = ((DetectByteMathData *)prev_bmd_sm->ctx)->local_id + 1;
+ }
+ if (data->local_id > de_ctx->byte_extract_max_local_id) {
+ de_ctx->byte_extract_max_local_id = data->local_id;
+ }
+
+ sm = SigMatchAlloc();
+ if (sm == NULL)
+ goto error;
+ sm->type = DETECT_BYTEMATH;
+ sm->ctx = (void *)data;
+ SigMatchAppendSMToList(s, sm, sm_list);
+
+ if (!(data->flags & DETECT_BYTEMATH_FLAG_RELATIVE))
+ goto okay;
+
+ if (prev_pm == NULL)
+ goto okay;
+
+ if (prev_pm->type == DETECT_CONTENT) {
+ DetectContentData *cd = (DetectContentData *)prev_pm->ctx;
+ cd->flags |= DETECT_CONTENT_RELATIVE_NEXT;
+ } else if (prev_pm->type == DETECT_PCRE) {
+ DetectPcreData *pd = (DetectPcreData *)prev_pm->ctx;
+ pd->flags |= DETECT_PCRE_RELATIVE_NEXT;
+ }
+
+ okay:
+ return 0;
+
+ error:
+ if (rvalue)
+ SCFree(rvalue);
+ DetectByteMathFree(de_ctx, data);
+ return ret;
+}
+
+/**
+ * \brief Used to free instances of DetectByteMathractData.
+ *
+ * \param ptr Instance of DetectByteMathData to be freed.
+ */
+static void DetectByteMathFree(DetectEngineCtx *de_ctx, void *ptr)
+{
+ if (ptr != NULL) {
+ DetectByteMathData *bmd = ptr;
+ if (bmd->result != NULL)
+ SCFree((void *)bmd->result);
+ SCFree(bmd);
+ }
+
+ return;
+}
+
+/**
+ * \brief Lookup the SigMatch for a named byte_math variable.
+ *
+ * \param arg The name of the byte_math variable to lookup.
+ * \param s Pointer the signature to look in.
+ *
+ * \retval A pointer to the SigMatch if found, otherwise NULL.
+ */
+SigMatch *DetectByteMathRetrieveSMVar(const char *arg, const Signature *s)
+{
+ const int nlists = s->init_data->smlists_array_size;
+ for (int list = 0; list < nlists; list++) {
+ SigMatch *sm = s->init_data->smlists[list];
+ while (sm != NULL) {
+ if (sm->type == DETECT_BYTEMATH) {
+ const DetectByteMathData *bmd = (const DetectByteMathData *)sm->ctx;
+ if (strcmp(bmd->result, arg) == 0) {
+ SCLogDebug("Retrieved SM for \"%s\"", arg);
+ return sm;
+ }
+ }
+ sm = sm->next;
+ }
+ }
+
+ return NULL;
+}
+
+/*************************************Unittests********************************/
+#ifdef UNITTESTS
+
+#include "app-layer-parser.h"
+
+static int DetectByteMathParseTest01(void)
+{
+
+ DetectByteMathData *bmd = DetectByteMathParse(NULL, "bytes 4, offset 2, oper +,"
+ "rvalue 10, result bar", NULL);
+ FAIL_IF(bmd == NULL);
+
+ FAIL_IF_NOT(bmd->nbytes == 4);
+ FAIL_IF_NOT(bmd->offset == 2);
+ FAIL_IF_NOT(bmd->oper == DETECT_BYTEMATH_OPERATOR_PLUS);
+ FAIL_IF_NOT(bmd->rvalue == 10);
+ FAIL_IF_NOT(strcmp(bmd->result, "bar") == 0);
+ FAIL_IF_NOT(bmd->endian == DETECT_BYTEMATH_ENDIAN_DEFAULT);
+ FAIL_IF_NOT(bmd->base == DETECT_BYTEMATH_BASE_DEFAULT);
+
+ DetectByteMathFree(NULL, bmd);
+
+ PASS;
+}
+
+static int DetectByteMathParseTest02(void)
+{
+ /* bytes value invalid */
+ DetectByteMathData *bmd = DetectByteMathParse(NULL, "bytes 257, offset 2, oper +, "
+ "rvalue 39, result bar", NULL);
+
+ FAIL_IF_NOT(bmd == NULL);
+
+ PASS;
+}
+
+static int DetectByteMathParseTest03(void)
+{
+ /* bytes value invalid */
+ DetectByteMathData *bmd = DetectByteMathParse(NULL, "bytes 11, offset 2, oper +, "
+ "rvalue 39, result bar", NULL);
+ FAIL_IF_NOT(bmd == NULL);
+
+ PASS;
+}
+
+static int DetectByteMathParseTest04(void)
+{
+ /* offset value invalid */
+ DetectByteMathData *bmd = DetectByteMathParse(NULL, "bytes 4, offset 70000, oper +,"
+ " rvalue 39, result bar", NULL);
+
+ FAIL_IF_NOT(bmd == NULL);
+
+ PASS;
+}
+
+static int DetectByteMathParseTest05(void)
+{
+ /* oper value invalid */
+ DetectByteMathData *bmd = DetectByteMathParse(NULL, "bytes 11, offset 16, oper &,"
+ "rvalue 39, result bar", NULL);
+ FAIL_IF_NOT(bmd == NULL);
+
+ PASS;
+}
+
+static int DetectByteMathParseTest06(void)
+{
+ uint8_t flags = DETECT_BYTEMATH_FLAG_RELATIVE;
+ char *rvalue = NULL;
+
+ DetectByteMathData *bmd = DetectByteMathParse(NULL, "bytes 4, offset 0, oper +,"
+ "rvalue 248, result var, relative",
+ &rvalue);
+
+ FAIL_IF(bmd == NULL);
+ FAIL_IF_NOT(bmd->nbytes == 4);
+ FAIL_IF_NOT(bmd->offset == 0);
+ FAIL_IF_NOT(bmd->oper == DETECT_BYTEMATH_OPERATOR_PLUS);
+ FAIL_IF_NOT(bmd->rvalue == 248);
+ FAIL_IF_NOT(strcmp(bmd->result, "var") == 0);
+ FAIL_IF_NOT(bmd->flags == flags);
+ FAIL_IF_NOT(bmd->endian == DETECT_BYTEMATH_ENDIAN_DEFAULT);
+ FAIL_IF_NOT(bmd->base == DETECT_BYTEMATH_BASE_DEFAULT);
+
+ DetectByteMathFree(NULL, bmd);
+
+ PASS;
+}
+
+static int DetectByteMathParseTest07(void)
+{
+ char *rvalue = NULL;
+
+ DetectByteMathData *bmd = DetectByteMathParse(NULL, "bytes 4, offset 2, oper +,"
+ "rvalue foo, result bar",
+ &rvalue);
+ FAIL_IF_NOT(rvalue);
+ FAIL_IF_NOT(bmd->nbytes == 4);
+ FAIL_IF_NOT(bmd->offset == 2);
+ FAIL_IF_NOT(bmd->oper == DETECT_BYTEMATH_OPERATOR_PLUS);
+ FAIL_IF_NOT(strcmp(rvalue, "foo") == 0);
+ FAIL_IF_NOT(strcmp(bmd->result, "bar") == 0);
+ FAIL_IF_NOT(bmd->endian == DETECT_BYTEMATH_ENDIAN_DEFAULT);
+ FAIL_IF_NOT(bmd->base == DETECT_BYTEMATH_BASE_DEFAULT);
+
+ DetectByteMathFree(NULL, bmd);
+
+ SCFree(rvalue);
+
+ PASS;
+}
+
+static int DetectByteMathParseTest08(void)
+{
+ /* ensure Parse checks the pointer value when rvalue is a var */
+ DetectByteMathData *bmd = DetectByteMathParse(NULL, "bytes 4, offset 2, oper +,"
+ "rvalue foo, result bar", NULL);
+ FAIL_IF_NOT(bmd == NULL);
+
+ PASS;
+}
+
+static int DetectByteMathParseTest09(void)
+{
+ uint8_t flags = DETECT_BYTEMATH_FLAG_RELATIVE;
+
+ DetectByteMathData *bmd = DetectByteMathParse(NULL, "bytes 4, offset 2, oper +,"
+ "rvalue 39, result bar, relative",
+ NULL);
+ FAIL_IF(bmd == NULL);
+
+ FAIL_IF_NOT(bmd->nbytes == 4);
+ FAIL_IF_NOT(bmd->offset == 2);
+ FAIL_IF_NOT(bmd->oper == DETECT_BYTEMATH_OPERATOR_PLUS);
+ FAIL_IF_NOT(bmd->rvalue == 39);
+ FAIL_IF_NOT(strcmp(bmd->result, "bar") == 0);
+ FAIL_IF_NOT(bmd->flags == flags);
+ FAIL_IF_NOT(bmd->endian == DETECT_BYTEMATH_ENDIAN_DEFAULT);
+ FAIL_IF_NOT(bmd->base == DETECT_BYTEMATH_BASE_DEFAULT);
+
+ DetectByteMathFree(NULL, bmd);
+
+ PASS;
+}
+
+static int DetectByteMathParseTest10(void)
+{
+ uint8_t flags = DETECT_BYTEMATH_FLAG_ENDIAN;
+
+ DetectByteMathData *bmd = DetectByteMathParse(NULL, "bytes 4, offset 2, oper +,"
+ "rvalue 39, result bar, endian"
+ " big", NULL);
+
+ FAIL_IF(bmd == NULL);
+ FAIL_IF_NOT(bmd->nbytes == 4);
+ FAIL_IF_NOT(bmd->offset == 2);
+ FAIL_IF_NOT(bmd->oper == DETECT_BYTEMATH_OPERATOR_PLUS);
+ FAIL_IF_NOT(bmd->rvalue == 39);
+ FAIL_IF_NOT(strcmp(bmd->result, "bar") == 0);
+ FAIL_IF_NOT(bmd->flags == flags);
+ FAIL_IF_NOT(bmd->endian == DETECT_BYTEMATH_ENDIAN_BIG);
+ FAIL_IF_NOT(bmd->base == DETECT_BYTEMATH_BASE_DEFAULT);
+
+ DetectByteMathFree(NULL, bmd);
+
+ PASS;
+}
+
+static int DetectByteMathParseTest11(void)
+{
+ uint8_t flags = DETECT_BYTEMATH_FLAG_ENDIAN;
+
+ DetectByteMathData *bmd = DetectByteMathParse(NULL, "bytes 4, offset 2, oper +, "
+ "rvalue 39, result bar, dce",
+ NULL);
+
+ FAIL_IF(bmd == NULL);
+ FAIL_IF_NOT(bmd->nbytes == 4);
+ FAIL_IF_NOT(bmd->offset == 2);
+ FAIL_IF_NOT(bmd->oper == DETECT_BYTEMATH_OPERATOR_PLUS);
+ FAIL_IF_NOT(bmd->rvalue == 39);
+ FAIL_IF_NOT(strcmp(bmd->result, "bar") == 0);
+ FAIL_IF_NOT(bmd->flags == flags);
+ FAIL_IF_NOT(bmd->endian == DETECT_BYTEMATH_ENDIAN_DCE);
+ FAIL_IF_NOT(bmd->base == DETECT_BYTEMATH_BASE_DEFAULT);
+
+ DetectByteMathFree(NULL, bmd);
+
+ PASS;
+}
+
+static int DetectByteMathParseTest12(void)
+{
+ uint8_t flags = DETECT_BYTEMATH_FLAG_RELATIVE | DETECT_BYTEMATH_FLAG_STRING;
+
+ DetectByteMathData *bmd = DetectByteMathParse(NULL, "bytes 4, offset 2, oper +,"
+ "rvalue 39, result bar, "
+ "relative, string dec", NULL);
+
+ FAIL_IF(bmd == NULL);
+ FAIL_IF_NOT(bmd->nbytes == 4);
+ FAIL_IF_NOT(bmd->offset == 2);
+ FAIL_IF_NOT(bmd->oper == DETECT_BYTEMATH_OPERATOR_PLUS);
+ FAIL_IF_NOT(bmd->rvalue == 39);
+ FAIL_IF_NOT(strcmp(bmd->result, "bar") == 0);
+ FAIL_IF_NOT(bmd->flags == flags);
+ FAIL_IF_NOT(bmd->endian == DETECT_BYTEMATH_ENDIAN_BIG);
+ FAIL_IF_NOT(bmd->base == DETECT_BYTEMATH_BASE_DEC);
+
+ DetectByteMathFree(NULL, bmd);
+
+ PASS;
+}
+
+static int DetectByteMathParseTest13(void)
+{
+ uint8_t flags = DETECT_BYTEMATH_FLAG_STRING |
+ DETECT_BYTEMATH_FLAG_RELATIVE |
+ DETECT_BYTEMATH_FLAG_BITMASK;
+
+ DetectByteMathData *bmd = DetectByteMathParse(NULL, "bytes 4, offset 2, oper +, "
+ "rvalue 39, result bar, "
+ "relative, string dec, bitmask "
+ "0x8f40", NULL);
+
+ FAIL_IF(bmd == NULL);
+ FAIL_IF_NOT(bmd->nbytes == 4);
+ FAIL_IF_NOT(bmd->offset == 2);
+ FAIL_IF_NOT(bmd->oper == DETECT_BYTEMATH_OPERATOR_PLUS);
+ FAIL_IF_NOT(bmd->rvalue == 39);
+ FAIL_IF_NOT(strcmp(bmd->result, "bar") == 0);
+ FAIL_IF_NOT(bmd->bitmask_val == 0x8f40);
+ FAIL_IF_NOT(bmd->bitmask_shift_count == 6);
+ FAIL_IF_NOT(bmd->flags == flags);
+ FAIL_IF_NOT(bmd->endian == DETECT_BYTEMATH_ENDIAN_BIG);
+ FAIL_IF_NOT(bmd->base == DETECT_BYTEMATH_BASE_DEC);
+
+ DetectByteMathFree(NULL, bmd);
+
+ PASS;
+}
+
+
+static int DetectByteMathParseTest14(void)
+{
+ /* incomplete */
+ DetectByteMathData *bmd = DetectByteMathParse(NULL, "bytes 4, offset 2, oper +,"
+ "rvalue foo", NULL);
+
+ FAIL_IF_NOT(bmd == NULL);
+
+ PASS;
+}
+
+static int DetectByteMathParseTest15(void)
+{
+
+ /* incomplete */
+ DetectByteMathData *bmd = DetectByteMathParse(NULL, "bytes 4, offset 2, oper +, "
+ "result bar", NULL);
+
+ FAIL_IF_NOT(bmd == NULL);
+
+ PASS;
+}
+
+static int DetectByteMathPacket01(void)
+{
+ uint8_t buf[] = { 0x38, 0x35, 0x6d, 0x00, 0x00, 0x01,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x6d, 0x00, 0x01, 0x00 };
+ Flow f;
+ void *dns_state = NULL;
+ Packet *p = NULL;
+ Signature *s = NULL;
+ ThreadVars tv;
+ DetectEngineThreadCtx *det_ctx = NULL;
+ AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
+
+ memset(&tv, 0, sizeof(ThreadVars));
+ memset(&f, 0, sizeof(Flow));
+
+ p = UTHBuildPacketReal(buf, sizeof(buf), IPPROTO_UDP,
+ "192.168.1.5", "192.168.1.1",
+ 41424, 53);
+ FAIL_IF_NULL(p);
+
+ FLOW_INITIALIZE(&f);
+ f.flags |= FLOW_IPV4;
+ f.proto = IPPROTO_UDP;
+ f.protomap = FlowGetProtoMapping(f.proto);
+
+ p->flow = &f;
+ p->flags |= PKT_HAS_FLOW;
+ p->flowflags |= FLOW_PKT_TOSERVER;
+ f.alproto = ALPROTO_DNS;
+
+ DetectEngineCtx *de_ctx = DetectEngineCtxInit();
+ FAIL_IF_NULL(de_ctx);
+
+ de_ctx->mpm_matcher = mpm_default_matcher;
+ de_ctx->flags |= DE_QUIET;
+
+ /*
+ * byte_extract: Extract 1 byte from offset 0 --> 0x0038
+ * byte_math: Extract 1 byte from offset 2 (0x35)
+ * Add 0x35 + 0x38 = 109 (0x6d)
+ * byte_test: Compare 2 bytes at offset 13 bytes from last
+ * match and compare with 0x6d
+ */
+ s = DetectEngineAppendSig(de_ctx, "alert udp any any -> any any "
+ "(byte_extract: 1, 0, extracted_val, relative;"
+ "byte_math: bytes 1, offset 1, oper +, rvalue extracted_val, result var;"
+ "byte_test: 2, =, var, 13;"
+ "msg:\"Byte extract and byte math with byte test verification\";"
+ "sid:1;)");
+ FAIL_IF_NULL(s);
+
+ /* this rule should not alert */
+ s = DetectEngineAppendSig(de_ctx, "alert udp any any -> any any "
+ "(byte_extract: 1, 0, extracted_val, relative;"
+ "byte_math: bytes 1, offset 1, oper +, rvalue extracted_val, result var;"
+ "byte_test: 2, !=, var, 13;"
+ "msg:\"Byte extract and byte math with byte test verification\";"
+ "sid:2;)");
+ FAIL_IF_NULL(s);
+
+ /*
+ * this rule should alert:
+ * compares offset 15 with var ... 1 (offset 15) < 0x6d (var)
+ */
+ s = DetectEngineAppendSig(de_ctx, "alert udp any any -> any any "
+ "(byte_extract: 1, 0, extracted_val, relative;"
+ "byte_math: bytes 1, offset 1, oper +, rvalue extracted_val, result var;"
+ "byte_test: 2, <, var, 15;"
+ "msg:\"Byte extract and byte math with byte test verification\";"
+ "sid:3;)");
+ FAIL_IF_NULL(s);
+
+ SigGroupBuild(de_ctx);
+ DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
+ FAIL_IF_NULL(det_ctx);
+
+ int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_DNS,
+ STREAM_TOSERVER, buf, sizeof(buf));
+ FAIL_IF_NOT(r == 0);
+
+ dns_state = f.alstate;
+ FAIL_IF_NULL(dns_state);
+
+ /* do detect */
+ SigMatchSignatures(&tv, de_ctx, det_ctx, p);
+
+ /* ensure sids 1 & 3 alerted */
+ FAIL_IF_NOT(PacketAlertCheck(p, 1));
+ FAIL_IF(PacketAlertCheck(p, 2));
+ FAIL_IF_NOT(PacketAlertCheck(p, 3));
+
+ AppLayerParserThreadCtxFree(alp_tctx);
+ DetectEngineThreadCtxDeinit(&tv, det_ctx);
+ DetectEngineCtxFree(de_ctx);
+
+ FLOW_DESTROY(&f);
+ UTHFreePacket(p);
+
+ PASS;
+}
+
+static int DetectByteMathContext01(void)
+{
+ DetectEngineCtx *de_ctx = NULL;
+ Signature *s = NULL;
+ SigMatch *sm = NULL;
+ DetectContentData *cd = NULL;
+ DetectByteMathData *bmd = NULL;
+
+ de_ctx = DetectEngineCtxInit();
+ FAIL_IF(de_ctx == NULL);
+
+ de_ctx->flags |= DE_QUIET;
+ s = de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any "
+ "(msg:\"Testing bytemath_body\"; "
+ "content:\"|00 04 93 F3|\"; "
+ "content:\"|00 00 00 07|\"; distance:4; within:4;"
+ "byte_math:bytes 4, offset 0, oper +, rvalue"
+ "248, result var, relative; sid:1;)");
+
+ FAIL_IF(de_ctx->sig_list == NULL);
+
+ FAIL_IF(s->sm_lists_tail[DETECT_SM_LIST_PMATCH] == NULL);
+
+ sm = s->sm_lists[DETECT_SM_LIST_PMATCH];
+ FAIL_IF(sm->type != DETECT_CONTENT);
+ cd = (DetectContentData *)sm->ctx;
+ FAIL_IF(cd->flags & DETECT_CONTENT_WITHIN);
+ FAIL_IF(cd->flags & DETECT_CONTENT_DISTANCE);
+ FAIL_IF(cd->content_len != 4);
+
+ sm = sm->next;
+ FAIL_IF(sm->type != DETECT_CONTENT);
+ sm = sm->next;
+ FAIL_IF(sm->type != DETECT_BYTEMATH);
+
+ FAIL_IF(sm->ctx == NULL);
+
+ bmd = (DetectByteMathData *)sm->ctx;
+ FAIL_IF_NOT(bmd->nbytes == 4);
+ FAIL_IF_NOT(bmd->offset == 0);
+ FAIL_IF_NOT(bmd->rvalue == 248);
+ FAIL_IF_NOT(strcmp(bmd->result, "var") == 0);
+ FAIL_IF_NOT(bmd->flags == DETECT_BYTEMATH_FLAG_RELATIVE);
+ FAIL_IF_NOT(bmd->endian == DETECT_BYTEMATH_ENDIAN_BIG);
+ FAIL_IF_NOT(bmd->oper == DETECT_BYTEMATH_OPERATOR_PLUS);
+ FAIL_IF_NOT(bmd->base == DETECT_BYTEMATH_BASE_DEC);
+
+ DetectEngineCtxFree(de_ctx);
+
+ PASS;
+}
+
+#endif /* UNITTESTS */
+
+static void DetectByteMathRegisterTests(void)
+{
+#ifdef UNITTESTS
+ UtRegisterTest("DetectByteMathParseTest01", DetectByteMathParseTest01);
+ UtRegisterTest("DetectByteMathParseTest02", DetectByteMathParseTest02);
+ UtRegisterTest("DetectByteMathParseTest03", DetectByteMathParseTest03);
+ UtRegisterTest("DetectByteMathParseTest04", DetectByteMathParseTest04);
+ UtRegisterTest("DetectByteMathParseTest05", DetectByteMathParseTest05);
+ UtRegisterTest("DetectByteMathParseTest06", DetectByteMathParseTest06);
+ UtRegisterTest("DetectByteMathParseTest07", DetectByteMathParseTest07);
+ UtRegisterTest("DetectByteMathParseTest08", DetectByteMathParseTest08);
+ UtRegisterTest("DetectByteMathParseTest09", DetectByteMathParseTest09);
+ UtRegisterTest("DetectByteMathParseTest10", DetectByteMathParseTest10);
+ UtRegisterTest("DetectByteMathParseTest11", DetectByteMathParseTest11);
+ UtRegisterTest("DetectByteMathParseTest12", DetectByteMathParseTest12);
+ UtRegisterTest("DetectByteMathParseTest13", DetectByteMathParseTest13);
+ UtRegisterTest("DetectByteMathParseTest14", DetectByteMathParseTest14);
+ UtRegisterTest("DetectByteMathParseTest15", DetectByteMathParseTest15);
+ UtRegisterTest("DetectByteMathPacket01", DetectByteMathPacket01);
+ UtRegisterTest("DetectByteMathContext01", DetectByteMathContext01);
+#endif /* UNITTESTS */
+
+ return;
+}