Go to the documentation of this file.
67 "toserver TCP packet",
68 "toclient TCP packet",
69 "toserver TCP stream",
70 "toclient TCP stream",
71 "toserver UDP packet",
72 "toclient UDP packet",
91 AppProto alproto,
int tx_min_progress)
93 SCLogDebug(
"registering %s/%d/%d/%p/%p/%u/%d", name, direction, priority,
94 PrefilterRegister, GetData, alproto, tx_min_progress);
96 BUG_ON(tx_min_progress >= 48);
107 FatalError(
"MPM engine registration for %s failed", name);
116 am->
sm_list = (int16_t)sm_list;
122 am->
app_v2.GetData = GetData;
123 am->
app_v2.alproto = alproto;
124 am->
app_v2.tx_min_progress = tx_min_progress;
130 while (t->
next != NULL) {
144 const int id,
const int parent_id,
147 SCLogDebug(
"registering %d/%d",
id, parent_id);
170 memcpy(&am->
transforms, transforms,
sizeof(*transforms));
175 char xforms[1024] =
"";
176 for (
int i = 0; i < transforms->
cnt; i++) {
178 (void)snprintf(ttstr,
sizeof(ttstr),
"%s,",
180 strlcat(xforms, ttstr,
sizeof(xforms));
182 xforms[strlen(xforms)-1] =
'\0';
184 size_t space =
sizeof(am->
pname) - strlen(am->
name) - 3;
185 char toprint[space + 1];
186 memset(toprint, 0x00, space + 1);
187 if (space < strlen(xforms)) {
190 strlcpy(toprint, xforms,
sizeof(toprint));
192 (void)snprintf(am->
pname,
sizeof(am->
pname),
"%s#%d (%s)",
193 am->
name, id, toprint);
195 (void)snprintf(am->
pname,
sizeof(am->
pname),
"%s#%d",
202 SCLogDebug(
"copied mpm registration for %s id %u "
203 "with parent %u and GetData %p",
215 while (list != NULL) {
235 char confstring[256] =
"detect.mpm.";
237 strlcat(confstring,
".shared",
sizeof(confstring));
271 if (mpm_ctx != NULL) {
291 SCLogDebug(
"registering %s/%d/%p/%s/%u", name, priority, PrefilterRegister,
298 if (sm_list < 0 || sm_list > UINT16_MAX) {
299 FatalError(
"MPM engine registration for %s failed", name);
306 am->
sm_list = (uint16_t)sm_list;
321 while (t->
next != NULL) {
337 SCLogDebug(
"registering %d/%d",
id, parent_id);
358 memcpy(&am->
transforms, transforms,
sizeof(*transforms));
364 SCLogDebug(
"copied mpm registration for %s id %u "
366 t->
name,
id, parent_id);
379 SCLogDebug(
"registering %s/%d/%p/%s/%u", name, priority, PrefilterRegister,
383 if (sm_list < 0 || sm_list > UINT16_MAX) {
384 FatalError(
"MPM engine registration for %s failed", name);
395 am->
sm_list = (uint16_t)sm_list;
410 if (
ConfGetBool(
"detect.mpm.frame.shared", &confshared) == 1)
424 while (t->
next != NULL) {
439 while (list != NULL) {
450 while (t->
next != NULL) {
462 char confstring[256] =
"detect.mpm.";
464 strlcat(confstring,
".shared",
sizeof(confstring));
500 if (mpm_ctx != NULL) {
521 SCLogDebug(
"registering %s/%d/%p/%p", name, priority,
522 PrefilterRegister, GetData);
533 FatalError(
"MPM engine registration for %s failed", name);
541 am->
sm_list = (uint16_t)sm_list;
546 am->
pkt_v1.GetData = GetData;
552 while (t->
next != NULL) {
566 const int id,
const int parent_id,
569 SCLogDebug(
"registering %d/%d",
id, parent_id);
588 memcpy(&am->
transforms, transforms,
sizeof(*transforms));
594 SCLogDebug(
"copied mpm registration for %s id %u "
595 "with parent %u and GetData %p",
606 while (list != NULL) {
617 while (t->
next != NULL) {
629 char confstring[256] =
"detect.mpm.";
631 strlcat(confstring,
".shared",
sizeof(confstring));
665 if (mpm_ctx != NULL) {
684 char confstring[256] =
"detect.mpm.";
685 strlcat(confstring, name,
sizeof(confstring));
686 strlcat(confstring,
".shared",
sizeof(confstring));
693 SCLogDebug(
"using unique mpm ctx' for %s", name);
696 SCLogDebug(
"using shared mpm ctx' for %s", name);
775 if (!(s->
proto.
proto[IPPROTO_TCP / 8] & 1 << (IPPROTO_TCP % 8))) {
805 if (!(s->
proto.
proto[IPPROTO_TCP / 8] & 1 << (IPPROTO_TCP % 8))) {
831 const char *mpm_algo;
835 if ((
ConfGet(
"mpm-algo", &mpm_algo)) == 1) {
836 if (mpm_algo != NULL) {
837 #if __BYTE_ORDER == __BIG_ENDIAN
838 if (strcmp(mpm_algo,
"ac-ks") == 0) {
840 "not work on big endian systems at this time.");
843 if (strcmp(
"auto", mpm_algo) == 0) {
845 }
else if (strcmp(
"ac-bs", mpm_algo) == 0) {
846 SCLogWarning(
"mpm-algo \"ac-bs\" has been removed. See ticket #6586.");
853 if (strcmp(
mpm_table[u].name, mpm_algo) == 0) {
859 #ifndef BUILD_HYPERSCAN
860 if ((strcmp(mpm_algo,
"hs") == 0)) {
861 FatalError(
"Hyperscan (hs) support for mpm-algo is "
862 "not compiled into Suricata.");
867 "in the yaml conf file: \"%s\"",
877 SCLogDebug(
"mpm_ctx %p, mpm_matcher %"PRIu16
"", mpm_ctx, mpm_matcher);
883 SCLogDebug(
"mpm_thread_ctx %p, mpm_matcher %"PRIu16
"", mpm_thread_ctx, mpm_matcher);
888 SCLogDebug(
"mpm_thread_ctx %p, type %"PRIu16, mpm_thread_ctx, mpm_matcher);
908 memset(&a, 0 ,
sizeof(a));
912 for (u = 0; u < patlen; u++) {
913 if (a[pat[u]] == 0) {
916 else if (isprint(pat[u]) || pat[u] == 0x00 || pat[u] == 0x01 || pat[u] == 0xFF)
933 uint16_t pat_offset = cd->
offset;
934 uint16_t pat_depth = cd->
depth;
937 if (chop && (pat_depth || pat_offset)) {
949 pat_depth = pat_offset = 0;
956 pat_offset, pat_depth,
961 pat_offset, pat_depth,
968 pat_offset, pat_depth,
973 pat_offset, pat_depth,
981 #define SGH_PROTO(sgh, p) ((sgh)->init->protos[(p)] == 1)
982 #define SGH_DIRECTION_TS(sgh) ((sgh)->init->direction & SIG_FLAG_TOSERVER)
983 #define SGH_DIRECTION_TC(sgh) ((sgh)->init->direction & SIG_FLAG_TOCLIENT)
987 if (s == NULL || mpm_sm == NULL)
1014 uint16_t max_len,
bool skip_negated_content)
1029 if (mpm_sm == NULL) {
1038 }
else if (ls == ss) {
1061 int pos_sm_list[nlists];
1062 int neg_sm_list[nlists];
1063 memset(pos_sm_list, 0, nlists *
sizeof(
int));
1064 memset(neg_sm_list, 0, nlists *
sizeof(
int));
1065 int pos_sm_list_cnt = 0;
1066 int neg_sm_list_cnt = 0;
1112 SetMpm(s, sm, list_id);
1117 neg_sm_list[list_id] = 1;
1120 pos_sm_list[list_id] = 1;
1128 SCLogDebug(
"neg_sm_list_cnt %d pos_sm_list_cnt %d", neg_sm_list_cnt, pos_sm_list_cnt);
1131 int *curr_sm_list = NULL;
1132 int skip_negated_content = 1;
1133 if (pos_sm_list_cnt > 0) {
1134 curr_sm_list = pos_sm_list;
1135 }
else if (neg_sm_list_cnt > 0) {
1136 curr_sm_list = neg_sm_list;
1137 skip_negated_content = 0;
1142 int final_sm_list[nlists];
1143 memset(&final_sm_list, 0, (nlists *
sizeof(
int)));
1145 int count_final_sm_list = 0;
1149 while (tmp != NULL) {
1151 tmp != NULL && priority == tmp->
priority;
1157 if (curr_sm_list[tmp->
list_id] == 0)
1159 final_sm_list[count_final_sm_list++] = tmp->
list_id;
1162 if (count_final_sm_list != 0)
1166 BUG_ON(count_final_sm_list == 0);
1167 SCLogDebug(
"count_final_sm_list %d skip_negated_content %d", count_final_sm_list,
1168 skip_negated_content);
1170 uint16_t max_len = 0;
1171 for (
int i = 0; i < count_final_sm_list; i++) {
1172 SCLogDebug(
"i %d final_sm_list[i] %d", i, final_sm_list[i]);
1190 if (final_sm_list[i] == list_id) {
1211 int mpm_sm_list = -1;
1212 for (
int i = 0; i < count_final_sm_list; i++) {
1218 skip_negated_content);
1219 if (mpm_sm != prev_mpm_sm) {
1220 mpm_sm_list = final_sm_list[i];
1227 if (final_sm_list[i] == list_id) {
1233 skip_negated_content);
1235 if (mpm_sm != prev_mpm_sm) {
1236 mpm_sm_list = list_id;
1244 if (mpm_sm != NULL) {
1245 BUG_ON(mpm_sm_list == -1);
1247 BUG_ON(check_list != mpm_sm_list);
1251 SetMpm(s, mpm_sm, mpm_sm_list);
1264 static uint32_t MpmStoreHashFunc(
HashListTable *ht,
void *data, uint16_t datalen)
1286 static char MpmStoreCompareFunc(
void *data1, uint16_t len1,
void *data2,
1316 static void MpmStoreFreeFunc(
void *ptr)
1346 MpmStoreCompareFunc,
1391 while (am != NULL) {
1399 while (am != NULL) {
1414 uint32_t appstats[app_mpms_cnt + 1];
1415 memset(&appstats, 0x00,
sizeof(appstats));
1417 uint32_t pktstats[pkt_mpms_cnt + 1];
1418 memset(&pktstats, 0x00,
sizeof(pktstats));
1420 uint32_t framestats[frame_mpms_cnt + 1];
1421 memset(&framestats, 0x00,
sizeof(framestats));
1428 if (ms == NULL || ms->
mpm_ctx == NULL) {
1438 SCLogDebug(
"%s: %u patterns. Min %u, Max %u. Ctx %p",
1446 SCLogDebug(
"%s %s %s: %u patterns. Min %u, Max %u. Ctx %p",
1467 for (
int x = 0; x <
MPMB_MAX; x++) {
1471 while (am != NULL) {
1472 if (appstats[am->
sm_list] > 0) {
1473 const char *name = am->
name;
1475 SCLogPerf(
"AppLayer MPM \"%s %s (%s)\": %u", direction, name,
1481 while (pm != NULL) {
1482 if (pktstats[pm->
sm_list] > 0) {
1483 const char *name = pm->
name;
1489 while (um != NULL) {
1490 if (framestats[um->
sm_list] > 0) {
1491 const char *name = um->
name;
1557 const bool mpm_supports_endswith =
1562 if (ms->
sid_array[sig / 8] & (1 << (sig % 8))) {
1582 SCLogDebug(
"not adding negated mpm as it's not 'single'");
1589 PopulateMpmHelperAddPattern(
1619 uint8_t sids_array[max_sid];
1620 memset(sids_array, 0x00, max_sid);
1621 int sgh_mpm_context = 0;
1686 sids_array[s->
num / 8] |= 1 << (s->
num % 8);
1694 sids_array[s->
num / 8] |= 1 << (s->
num % 8);
1700 sids_array[s->
num / 8] |= 1 << (s->
num % 8);
1704 sids_array[s->
num / 8] |= 1 << (s->
num % 8);
1715 MpmStore lookup = { sids_array, max_sid, direction, buf, sm_list, 0, 0, NULL };
1718 if (result == NULL) {
1722 uint8_t *sids =
SCCalloc(1, max_sid);
1728 memcpy(sids, sids_array, max_sid);
1736 MpmStoreSetup(
de_ctx, copy);
1737 MpmStoreAdd(
de_ctx, copy);
1764 0, am->
app_v2.alproto, NULL };
1769 if (result == NULL) {
1791 MpmStoreSetup(
de_ctx, copy);
1792 MpmStoreAdd(
de_ctx, copy);
1815 if (result == NULL) {
1835 MpmStoreSetup(
de_ctx, copy);
1836 MpmStoreAdd(
de_ctx, copy);
1858 if (result == NULL) {
1879 MpmStoreSetup(
de_ctx, copy);
1880 MpmStoreAdd(
de_ctx, copy);
1901 SCLogDebug(
"rule group %p has SIG_GROUP_HEAD_HAVERAWSTREAM set", sgh);
1905 SCLogDebug(
"rule group %p does NOT have SIG_GROUP_HEAD_HAVERAWSTREAM set", sgh);
1917 static uint32_t DetectBufferInstanceHashFunc(
HashListTable *ht,
void *data, uint16_t datalen)
1924 static char DetectBufferInstanceCompareFunc(
void *data1, uint16_t len1,
void *data2, uint16_t len2)
1931 static void DetectBufferInstanceFreeFunc(
void *ptr)
1943 return HashListTableInit(4096, DetectBufferInstanceHashFunc, DetectBufferInstanceCompareFunc,
1944 DetectBufferInstanceFreeFunc);
1956 memset(engines, 0,
sizeof(engines));
1957 int engines_idx[max_buffer_id];
1958 memset(engines_idx, 0,
sizeof(engines_idx));
1959 int types[max_buffer_id];
1960 memset(types, 0,
sizeof(types));
1964 types[a->sm_list] = a->type;
1968 if (instance == NULL) {
1969 instance =
SCCalloc(1,
sizeof(*instance));
1970 BUG_ON(instance == NULL);
1971 instance->
list = a->sm_list;
1981 if (add_ts || add_tc) {
1982 types[a->sm_list] = a->type;
1983 engines[a->sm_list][engines_idx[a->sm_list]++] = a->frame_v1.alproto;
1987 if (instance == NULL) {
1988 instance =
SCCalloc(1,
sizeof(*instance));
1989 BUG_ON(instance == NULL);
1990 instance->
list = a->sm_list;
1991 instance->
alproto = a->frame_v1.alproto;
2001 if (add_ts || add_tc) {
2002 types[a->sm_list] = a->type;
2003 engines[a->sm_list][engines_idx[a->sm_list]++] = a->app_v2.alproto;
2007 if (instance == NULL) {
2008 instance =
SCCalloc(1,
sizeof(*instance));
2009 BUG_ON(instance == NULL);
2010 instance->
list = a->sm_list;
2011 instance->
alproto = a->app_v2.alproto;
2019 for (uint32_t sig = 0; sig < sh->
init->
sig_cnt; sig++) {
2031 switch (types[list]) {
2035 for (
int e = 0; e < engines_idx[list]; e++) {
2036 const AppProto alproto = engines[list][e];
2042 if (instance == NULL)
2075 if (instance == NULL)
2106 if (instance == NULL) {
2113 MpmStore *mpm_store = MpmStorePrepareBufferPkt(
de_ctx, sh, a, sa);
2114 if (mpm_store != NULL) {
2117 SCLogDebug(
"a %p a->name %s a->reg->PrefilterRegisterWithListId %p "
2118 "mpm_store->mpm_ctx %p", a, a->name,
2119 a->PrefilterRegisterWithListId, mpm_store->
mpm_ctx);
2123 if (a->PrefilterRegisterWithListId && mpm_store->
mpm_ctx) {
2126 a, a->sm_list) != 0);
2127 SCLogDebug(
"mpm %s %d set up", a->name, a->sm_list);
2136 if (instance == NULL) {
2144 SCLogDebug(
"a %s direction %d PrefilterRegisterWithListId %p", a->name, a->direction,
2145 a->PrefilterRegisterWithListId);
2146 MpmStore *mpm_store = MpmStorePrepareBufferFrame(
de_ctx, sh, a, sa);
2147 if (mpm_store != NULL) {
2150 SCLogDebug(
"a %p a->name %s a->reg->PrefilterRegisterWithListId %p "
2151 "mpm_store->mpm_ctx %p",
2152 a, a->name, a->PrefilterRegisterWithListId, mpm_store->
mpm_ctx);
2157 if (a->PrefilterRegisterWithListId && mpm_store->
mpm_ctx) {
2158 BUG_ON(a->PrefilterRegisterWithListId(
2160 SCLogDebug(
"mpm %s %d set up", a->name, a->sm_list);
2171 if (instance == NULL) {
2179 MpmStore *mpm_store = MpmStorePrepareBufferAppLayer(
de_ctx, sh, a, sa);
2180 if (mpm_store != NULL) {
2183 SCLogDebug(
"a %p a->name %s a->PrefilterRegisterWithListId %p "
2184 "mpm_store->mpm_ctx %p",
2185 a, a->name, a->PrefilterRegisterWithListId, mpm_store->
mpm_ctx);
2189 if (a->PrefilterRegisterWithListId && mpm_store->
mpm_ctx) {
2190 BUG_ON(a->PrefilterRegisterWithListId(
2192 SCLogDebug(
"mpm %s %d set up", a->name, a->sm_list);
2209 if (mpm_store != NULL) {
2214 if (mpm_store != NULL) {
2218 SetRawReassemblyFlag(
de_ctx, sh);
2222 if (mpm_store != NULL) {
2227 if (mpm_store != NULL) {
2231 SetRawReassemblyFlag(
de_ctx, sh);
2233 }
else if (
SGH_PROTO(sh, IPPROTO_UDP)) {
2236 if (mpm_store != NULL) {
2242 if (mpm_store != NULL) {
2248 if (mpm_store != NULL) {
2272 static uint32_t PatternChopHashFunc(
HashListTable *ht,
void *data, uint16_t datalen)
2275 uint32_t hash = p->
sm_list + ContentFlagsForHash(p->
cd);
2277 const uint8_t *content = p->
cd->
content;
2295 static uint32_t PatternNoChopHashFunc(
HashListTable *ht,
void *data, uint16_t datalen)
2298 uint32_t hash = p->
sm_list + ContentFlagsForHash(p->
cd);
2314 static char PatternChopCompareFunc(
void *data1, uint16_t len1,
void *data2, uint16_t len2)
2322 if (ContentFlagsForHash(p1->
cd) != ContentFlagsForHash(p2->
cd))
2338 if (p1_content_len != p2_content_len)
2341 if (memcmp(p1_content, p2_content, p1_content_len) != 0) {
2359 static char PatternNoChopCompareFunc(
void *data1, uint16_t len1,
void *data2, uint16_t len2)
2367 if (ContentFlagsForHash(p1->
cd) != ContentFlagsForHash(p2->
cd))
2380 static void PatternFreeFunc(
void *ptr)
2412 HashListTableInit(4096, PatternChopHashFunc, PatternChopCompareFunc, PatternFreeFunc);
2443 SCLogDebug(
"%u: add id %u cnt %u", s->
id, add->cd->id, add->cnt);
2460 4096, PatternNoChopHashFunc, PatternNoChopCompareFunc, PatternFreeFunc);
2466 switch (smd->
type) {
2496 for (; app != NULL; app = app->
next) {
2500 switch (smd->
type) {
2505 .
cd = cd, .sm_list = app->
sm_list, .cnt = 0, .mpm = 0
2530 for (; pkt != NULL; pkt = pkt->
next) {
2537 switch (smd->
type) {
2542 .
cd = cd, .sm_list = pkt->
sm_list, .cnt = 0, .mpm = 0
2567 for (; frame != NULL; frame = frame->
next) {
2574 switch (smd->
type) {
2579 .
cd = cd, .sm_list = frame->
sm_list, .cnt = 0, .mpm = 0
void MpmInitThreadCtx(MpmThreadCtx *mpm_thread_ctx, uint16_t matcher)
#define DETECT_CONTENT_NOCASE
int SignatureHasPacketContent(const Signature *s)
check if a signature has patterns that are to be inspected against a packets payload (as opposed to t...
uint32_t pkt_mpms_list_cnt
#define HashListTableGetListData(hb)
uint32_t frame_mpms_list_cnt
uint32_t max_content_list_id
#define SGH_DIRECTION_TC(sgh)
#define DETECT_CONTENT_FAST_PATTERN_CHOP
struct SigMatch_ * smlists[DETECT_SM_LIST_MAX]
void PatternMatchDestroy(MpmCtx *mpm_ctx, uint16_t mpm_matcher)
int32_t sgh_mpm_context_proto_tcp_packet
int PatternMatchPrepareGroup(DetectEngineCtx *de_ctx, SigGroupHead *sh)
Prepare the pattern matcher ctx in a sig group head.
struct SCFPSupportSMList_ * next
struct DetectEngineAppInspectionEngine_ * next
void MpmStoreFree(DetectEngineCtx *de_ctx)
Frees the hash table - DetectEngineCtx->mpm_hash_table, allocated by MpmStoreInit() function.
void DetectFrameMpmRegisterByParentId(DetectEngineCtx *de_ctx, const int id, const int parent_id, DetectEngineTransforms *transforms)
copy a mpm engine from parent_id, add in transforms
int ConfGetBool(const char *name, int *val)
Retrieve a configuration value as a boolean.
Container for matching data for a signature group.
HashListTable * pattern_hash_table
void MpmFactoryReClaimMpmCtx(const DetectEngineCtx *de_ctx, MpmCtx *mpm_ctx)
void MpmStoreReportStats(const DetectEngineCtx *de_ctx)
void DetectPktMpmRegister(const char *name, int priority, int(*PrefilterRegister)(DetectEngineCtx *de_ctx, SigGroupHead *sgh, MpmCtx *mpm_ctx, const DetectBufferMpmRegistry *mpm_reg, int list_id), InspectionBufferGetPktDataPtr GetData)
register a MPM engine
void DetectBufferTypeSupportsFrames(const char *name)
struct DetectBufferMpmRegistry_::@88::@92 frame_v1
void DetectMpmInitializeFrameMpms(DetectEngineCtx *de_ctx)
@ DETECT_SM_LIST_DYNAMIC_START
#define DETECT_CONTENT_NO_DOUBLE_INSPECTION_REQUIRED
uint32_t PatternStrength(uint8_t *pat, uint16_t patlen)
Predict a strength value for patterns.
DetectBufferMpmRegistry * pkt_mpms_list
@ DETECT_BUFFER_MPM_TYPE_FRAME
int DetectSetFastPatternAndItsId(DetectEngineCtx *de_ctx)
Figure out the FP and their respective content ids for all the sigs in the engine.
InspectionBuffer *(* InspectionBufferGetDataPtr)(struct DetectEngineThreadCtx_ *det_ctx, const DetectEngineTransforms *transforms, Flow *f, const uint8_t flow_flags, void *txv, const int list_id)
const char * AppProtoToString(AppProto alproto)
Maps the ALPROTO_*, to its string equivalent.
main detection engine ctx
#define DETECT_CONTENT_MPM_IS_CONCLUSIVE(c)
HashListTableBucket * HashListTableGetListHead(HashListTable *ht)
#define DETECT_CONTENT_DEPTH_VAR
InspectionBuffer *(* InspectionBufferGetPktDataPtr)(struct DetectEngineThreadCtx_ *det_ctx, const DetectEngineTransforms *transforms, Packet *p, const int list_id)
const char * DetectEngineBufferTypeGetNameById(const DetectEngineCtx *de_ctx, const int id)
void DetectMpmInitializeBuiltinMpms(DetectEngineCtx *de_ctx)
struct DetectBufferMpmRegistry_ * next
#define SIG_FLAG_REQUIRE_STREAM
one time registration of keywords at start up
const struct DetectContentData_ * cd
#define SIG_GROUP_HEAD_HAVERAWSTREAM
uint8_t mpm_default_matcher
SigMatchData * sm_arrays[DETECT_SM_LIST_MAX]
struct DetectBufferMpmRegistry_::@88::@90 app_v2
void * HashListTableLookup(HashListTable *ht, void *data, uint16_t datalen)
#define SIG_FLAG_TOCLIENT
int32_t sgh_mpm_context_proto_udp_packet
DetectEngineTransforms transforms
void ShortenString(const char *input, char *output, size_t output_size, char c)
void DetectEngineRegisterFastPatternForId(DetectEngineCtx *de_ctx, int list_id, int priority)
void EngineAnalysisAddAllRulePatterns(DetectEngineCtx *de_ctx, const Signature *s)
add all patterns on our stats hash Used to fill the hash later used by DumpPatterns()
DetectEngineFrameInspectionEngine * frame_inspect
int DetectBufferTypeGetByName(const char *name)
int HashListTableAdd(HashListTable *ht, void *data, uint16_t datalen)
size_t strlcpy(char *dst, const char *src, size_t siz)
void DetectAppLayerMpmRegisterByParentId(DetectEngineCtx *de_ctx, const int id, const int parent_id, DetectEngineTransforms *transforms)
copy a mpm engine from parent_id, add in transforms
void MpmInitCtx(MpmCtx *mpm_ctx, uint8_t matcher)
int32_t sgh_mpm_context_proto_other_packet
int ConfGet(const char *name, const char **vptr)
Retrieve the value of a configuration node.
#define HashListTableGetListNext(hb)
#define SIG_FLAG_TOSERVER
HashListTable * HashListTableInit(uint32_t size, uint32_t(*Hash)(struct HashListTable_ *, void *, uint16_t), char(*Compare)(void *, uint16_t, void *, uint16_t), void(*Free)(void *))
void MpmDestroyThreadCtx(MpmThreadCtx *mpm_thread_ctx, const uint16_t matcher)
#define DETECT_CONTENT_ENDS_WITH
MpmCtx * MpmFactoryGetMpmCtxForProfile(const DetectEngineCtx *de_ctx, int32_t id, int direction)
void DetectMpmInitializePktMpms(DetectEngineCtx *de_ctx)
#define MPM_PATTERN_CTX_OWNS_ID
size_t strlcat(char *, const char *src, size_t siz)
#define DetectEngineGetMaxSigId(de_ctx)
#define DETECT_CONTENT_DEPTH
DetectEnginePktInspectionEngine * pkt_inspect
#define DETECT_CONTENT_IS_SINGLE(c)
#define DETECT_CONTENT_NEGATED
int PrefilterGenericMpmRegister(DetectEngineCtx *de_ctx, SigGroupHead *sgh, MpmCtx *mpm_ctx, const DetectBufferMpmRegistry *mpm_reg, int list_id)
void PatternMatchThreadPrepare(MpmThreadCtx *mpm_thread_ctx, uint16_t mpm_matcher)
#define SCLogWarning(...)
Macro used to log WARNING messages.
int DetectEngineBufferTypeRegister(DetectEngineCtx *de_ctx, const char *name)
SigGroupHeadInitData * init
struct DetectBufferMpmRegistry_::@88::@91 pkt_v1
void DetectAppLayerMpmRegister(const char *name, int direction, int priority, PrefilterRegisterFunc PrefilterRegister, InspectionBufferGetDataPtr GetData, AppProto alproto, int tx_min_progress)
register a MPM engine
DetectEngineAppInspectionEngine * app_inspect
#define MPMCTX_FLAGS_GLOBAL
int(* PrefilterRegisterFunc)(DetectEngineCtx *de_ctx, SigGroupHead *sgh, MpmCtx *mpm_ctx, const DetectBufferMpmRegistry *mpm_reg, int list_id)
int32_t MpmFactoryRegisterMpmCtxProfile(DetectEngineCtx *de_ctx, const char *name, const int sm_list, const AppProto alproto)
Register a new Mpm Context.
int32_t sgh_mpm_context_stream
void DetectEngineBufferTypeSupportsFrames(DetectEngineCtx *de_ctx, const char *name)
DetectBufferMpmRegistry * frame_mpms_list
int PrefilterPktPayloadRegister(DetectEngineCtx *de_ctx, SigGroupHead *sgh, MpmCtx *mpm_ctx)
@ DETECT_BUFFER_MPM_TYPE_PKT
int(* Prepare)(struct MpmCtx_ *)
SignatureInitData * init_data
int FastPatternSupportEnabledForSigMatchList(const DetectEngineCtx *de_ctx, const int list_id)
Checks if a particular buffer is in the list of lists that need to be searched for a keyword that has...
enum DetectBufferMpmType type
int MpmAddPatternCS(struct MpmCtx_ *mpm_ctx, uint8_t *pat, uint16_t patlen, uint16_t offset, uint16_t depth, uint32_t pid, SigIntId sid, uint8_t flags)
void DetectEngineBufferTypeSupportsTransformations(DetectEngineCtx *de_ctx, const char *name)
#define SGH_DIRECTION_TS(sgh)
int PrefilterGenericMpmPktRegister(DetectEngineCtx *de_ctx, SigGroupHead *sgh, MpmCtx *mpm_ctx, const DetectBufferMpmRegistry *mpm_reg, int list_id)
#define MPM_FEATURE_FLAG_ENDSWITH
MpmStore * MpmStorePrepareBuffer(DetectEngineCtx *de_ctx, SigGroupHead *sgh, enum MpmBuiltinBuffers buf)
Get MpmStore for a built-in buffer type.
int DetectMpmPrepareFrameMpms(DetectEngineCtx *de_ctx)
initialize mpm contexts for applayer buffers that are in "single or "shared" mode.
void DetectEngineFrameMpmRegister(DetectEngineCtx *de_ctx, const char *name, int direction, int priority, int(*PrefilterRegister)(DetectEngineCtx *de_ctx, SigGroupHead *sgh, MpmCtx *mpm_ctx, const DetectBufferMpmRegistry *mpm_reg, int list_id), AppProto alproto, uint8_t type)
int SignatureHasStreamContent(const Signature *s)
check if a signature has patterns that are to be inspected against the stream payload (as opposed to ...
enum DetectBufferMpmType type
int MpmStoreInit(DetectEngineCtx *de_ctx)
Initializes the MpmStore mpm hash table to be used by the detection engine context.
DetectBufferMpmRegistry * app_mpms_list
@ DETECT_BUFFER_MPM_TYPE_APP
void DetectBufferTypeSupportsMpm(const char *name)
void HashListTableFree(HashListTable *ht)
void SupportFastPatternForSigMatchList(int list_id, int priority)
Lets one add a sm list id to be searched for potential fp supported keywords later.
SigTableElmt sigmatch_table[DETECT_TBLSIZE]
struct DetectEngineFrameInspectionEngine * next
struct DetectEnginePktInspectionEngine * next
uint8_t PatternMatchDefaultMatcher(void)
Function to return the multi pattern matcher algorithm to be used by the engine, based on the mpm-alg...
int DetectMpmPreparePktMpms(DetectEngineCtx *de_ctx)
initialize mpm contexts for applayer buffers that are in "single or "shared" mode.
void DetectEngineBufferTypeSupportsMpm(DetectEngineCtx *de_ctx, const char *name)
uint32_t app_mpms_list_cnt
void DetectBufferTypeSupportsTransformations(const char *name)
#define MPM_PATTERN_FLAG_ENDSWITH
const char * builtin_mpms[]
SignatureInitDataBuffer * buffers
HashListTable * mpm_hash_table
void(* DestroyCtx)(struct MpmCtx_ *)
int SigMatchListSMBelongsTo(const Signature *s, const SigMatch *key_sm)
#define MPM_CTX_FACTORY_UNIQUE_CONTEXT
int DetectMpmPrepareBuiltinMpms(DetectEngineCtx *de_ctx)
initialize mpm contexts for builtin buffers that are in "single or "shared" mode.
#define DETECT_CONTENT_OFFSET
int(* PrefilterRegisterWithListId)(struct DetectEngineCtx_ *de_ctx, struct SigGroupHead_ *sgh, MpmCtx *mpm_ctx, const struct DetectBufferMpmRegistry_ *mpm_reg, int list_id)
#define DETECT_CONTENT_MPM
a single match condition for a signature
MpmTableElmt mpm_table[MPM_TABLE_SIZE]
void DetectMpmInitializeAppMpms(DetectEngineCtx *de_ctx)
@ DETECT_BUFFER_MPM_TYPE_SIZE
#define SGH_PROTO(sgh, p)
#define DETECT_CONTENT_REPLACE
void DetectPktMpmRegisterByParentId(DetectEngineCtx *de_ctx, const int id, const int parent_id, DetectEngineTransforms *transforms)
copy a mpm engine from parent_id, add in transforms
#define DETECT_CONTENT_FAST_PATTERN
void DetectFrameMpmRegister(const char *name, int direction, int priority, int(*PrefilterRegister)(DetectEngineCtx *de_ctx, SigGroupHead *sgh, MpmCtx *mpm_ctx, const DetectBufferMpmRegistry *mpm_reg, int list_id), AppProto alproto, uint8_t type)
register a MPM engine
struct DetectBufferInstance DetectBufferInstance
int MpmAddPatternCI(struct MpmCtx_ *mpm_ctx, uint8_t *pat, uint16_t patlen, uint16_t offset, uint16_t depth, uint32_t pid, SigIntId sid, uint8_t flags)
#define SCMemcmp(a, b, c)
int DetectMpmPrepareAppMpms(DetectEngineCtx *de_ctx)
initialize mpm contexts for applayer buffers that are in "single or "shared" mode.
SCFPSupportSMList * fp_support_smlist_list
#define DEBUG_VALIDATE_BUG_ON(exp)
#define SIG_FLAG_PREFILTER
void PatternMatchThreadDestroy(MpmThreadCtx *mpm_thread_ctx, uint16_t mpm_matcher)
enum MpmBuiltinBuffers buffer
@ ENGINE_SGH_MPM_FACTORY_CONTEXT_SINGLE
void RetrieveFPForSig(const DetectEngineCtx *de_ctx, Signature *s)
uint32_t StringHashDjb2(const uint8_t *data, uint32_t datalen)
int PrefilterPktStreamRegister(DetectEngineCtx *de_ctx, SigGroupHead *sgh, MpmCtx *mpm_ctx)
#define DETECT_CONTENT_OFFSET_VAR
#define SIG_FLAG_REQUIRE_PACKET