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complete new api and test case

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This commit is contained in:
liuchang
2024-11-22 07:53:29 +00:00
parent 89c8cad6c9
commit e50b1079f7
11 changed files with 1529 additions and 1594 deletions
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2
include/maat.h
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@@ -296,7 +296,7 @@ struct maat_state *maat_state_new(struct maat *instance, int thread_id);
* @param ex_data_array: rule ex_data array
* @param n_result: the size of rule_array and ex_data_array
*/
size_t maat_state_compile(struct maat_state *state, const char *table_name, uuid_t rule_array[], void *ex_data_array[], size_t n_result);
size_t maat_state_compile(struct maat_state *state, const char *table_name, uuid_t rule_array[], size_t n_result);
void maat_state_reset(struct maat_state *state);

1
scanner/expr_matcher/adapter_hs/adapter_hs.cpp
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@@ -341,7 +341,6 @@ static int matched_event_cb(unsigned int id, unsigned long long from,
return 0;
}
UT_icd ut_hs_pattern_id_icd = {sizeof(unsigned long long), NULL, NULL, NULL};
void *hs_lit_stream_open(void *hs_lit_engine, int thread_id)
{
if (NULL == hs_lit_engine || thread_id < 0) {

1
scanner/expr_matcher/adapter_rs/adapter_rs.cpp
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@@ -313,7 +313,6 @@ void rs_lit_engine_free(void *rs_lit_engine)
FREE(rs_lit_inst);
}
UT_icd ut_rs_pattern_id_icd = {sizeof(unsigned long long), NULL, NULL, NULL};
void *rs_lit_engine_new(struct expr_rule *rules, size_t n_rule,
struct pattern_attribute *pat_attr,
void *rs_lit_db, size_t n_thread,

2
scanner/expr_matcher/expr_matcher.cpp
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@@ -65,7 +65,7 @@ struct db_operations {
int (*build_db)(void **lit_db, void *compile_data, struct log_handle *logger);
};
UT_icd ut_pattern_id_icd = {sizeof(unsigned long long), NULL, NULL, NULL};
static UT_icd ut_pattern_id_icd = {sizeof(unsigned long long), NULL, NULL, NULL};
struct db_operations db_ops[EXPR_ENGINE_TYPE_AUTO] = {
{

2
scanner/ipport_matcher/ipport_matcher.c
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@@ -35,7 +35,7 @@ struct ipport_matcher {
struct ip_matcher *ip_matcher;
};
UT_icd ut_port_range_icd = {sizeof(struct port_range), NULL, NULL, NULL};
static UT_icd ut_port_range_icd = {sizeof(struct port_range), NULL, NULL, NULL};
static inline int compare_port_range_for_sort(const void *a, const void *b)
{
struct port_range range_a = *(const struct port_range *)a;

12
src/maat_api.c
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@@ -1170,7 +1170,7 @@ string_scan(struct table_manager *tbl_mgr, int thread_id,
return object_hit_cnt;
}
size_t maat_state_compile(struct maat_state *state, const char *table_name, uuid_t rule_array[], void *ex_data_array[], size_t n_result)
size_t maat_state_compile(struct maat_state *state, const char *table_name, uuid_t rule_array[], size_t n_result)
{
int table_id = maat_get_table_id(state->maat_inst, table_name);
if (table_id < 0) {
@@ -1183,16 +1183,10 @@ size_t maat_state_compile(struct maat_state *state, const char *table_name, uuid
}
int rule_num = rule_runtime_match((struct rule_runtime *)rule_rt, rule_array, n_result, state);
if (rule_num <= 0) {
return 0;
if (rule_num > 0) {
alignment_int64_array_add(state->maat_inst->stat->hit_rule_cnt, state->thread_id, rule_num);
}
for (int i = 0; i < rule_num; i++) {
ex_data_array[i] = maat_plugin_table_get_ex_data(state->maat_inst, table_name, (char*)&rule_array[i], sizeof(uuid_t));
}
alignment_int64_array_add(state->maat_inst->stat->hit_rule_cnt, state->thread_id, rule_num);
return rule_num;
}

2
src/maat_ex_data.c
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@@ -54,7 +54,7 @@ void cache_row_copy(void *dst, const void *src)
ex_data_row_dst->op = ex_data_row_src->op;
}
UT_icd ut_cache_row_icd = {sizeof(struct ex_data_row), NULL, cache_row_copy, cache_row_free};
static UT_icd ut_cache_row_icd = {sizeof(struct ex_data_row), NULL, cache_row_copy, cache_row_free};
struct ex_data_runtime *
ex_data_runtime_new(int table_id, int gc_timeout_s, struct log_handle *logger)

2
src/maat_object.c
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@@ -69,7 +69,7 @@ struct object_group_runtime {
struct log_handle *logger;
};
UT_icd ut_object_uuid_icd = {sizeof(uuid_t), NULL, NULL, NULL};
static UT_icd ut_object_uuid_icd = {sizeof(uuid_t), NULL, NULL, NULL};
static inline int compare_object_uuid(const void *a, const void *b)
{

89
src/maat_rule.c
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@@ -71,9 +71,11 @@ struct table_condition {
struct attribute_hit_object_collection {
char attribute_name[MAX_ATTR_NAME_LEN];
UT_array *direct_items;
UT_array *indirect_object_uuids;//TODO: ??????? change it to graph?
UT_array *indirect_object_uuids;//TODO: change it to graph?
UT_array *all_object_uuids;
int need_not_condition;
UT_array *negate_object_uuids;
int need_negate_condition;
int need_scan_not_object;
int Nth_scan;
UT_hash_handle hh;
};
@@ -142,11 +144,11 @@ struct rule_compile_state {
struct attribute_hit_object_collection *attr_hit_objects_hashtbl;
};
UT_icd ut_condition_id_icd = {sizeof(long long), NULL, NULL, NULL};
UT_icd ut_condition_literal_icd = {sizeof(struct condition_literal), NULL, NULL, NULL};
UT_icd ut_object_uuid_icd = {sizeof(uuid_t), NULL, NULL, NULL};
UT_icd ut_maat_item_icd = {sizeof(struct maat_item), NULL, NULL, NULL};
UT_icd ut_hit_path_icd = {sizeof(struct internal_hit_path), NULL, NULL, NULL};
static UT_icd ut_condition_id_icd = {sizeof(long long), NULL, NULL, NULL};
static UT_icd ut_condition_literal_icd = {sizeof(struct condition_literal), NULL, NULL, NULL};
static UT_icd ut_object_uuid_icd = {sizeof(uuid_t), NULL, NULL, NULL};
static UT_icd ut_maat_item_icd = {sizeof(struct maat_item), NULL, NULL, NULL};
static UT_icd ut_hit_path_icd = {sizeof(struct internal_hit_path), NULL, NULL, NULL};
static void rule_item_free(struct rule_item *item)
{
@@ -818,7 +820,21 @@ void rule_compile_state_reset(struct rule_compile_state *rule_compile_state)
struct attribute_hit_object_collection *attr_hit_obj = NULL, *tmp_hit_attr_obj = NULL;
HASH_ITER(hh, rule_compile_state->attr_hit_objects_hashtbl, attr_hit_obj, tmp_hit_attr_obj) {
//TODO: clear
if (attr_hit_obj->direct_items != NULL) {
utarray_clear(attr_hit_obj->direct_items);
}
if (attr_hit_obj->indirect_object_uuids != NULL) {
utarray_clear(attr_hit_obj->indirect_object_uuids);
}
if (attr_hit_obj->all_object_uuids != NULL) {
utarray_clear(attr_hit_obj->all_object_uuids);
}
attr_hit_obj->need_negate_condition = 0;
attr_hit_obj->need_scan_not_object = 0;
attr_hit_obj->Nth_scan = 0;
}
}
@@ -851,7 +867,30 @@ void rule_compile_state_free(struct rule_compile_state *rule_compile_state,
rule_compile_state->exclude_not_conditions = NULL;
}
//TODO: free attr_hit_objects_hashtbl
struct attribute_hit_object_collection *attr_hit_obj = NULL, *tmp_hit_attr_obj = NULL;
HASH_ITER(hh, rule_compile_state->attr_hit_objects_hashtbl, attr_hit_obj, tmp_hit_attr_obj) {
if (attr_hit_obj->direct_items != NULL) {
free_bytes += utarray_size(attr_hit_obj->direct_items) * sizeof(struct maat_item);
utarray_free(attr_hit_obj->direct_items);
attr_hit_obj->direct_items = NULL;
}
if (attr_hit_obj->indirect_object_uuids != NULL) {
free_bytes += utarray_size(attr_hit_obj->indirect_object_uuids) * sizeof(uuid_t);
utarray_free(attr_hit_obj->indirect_object_uuids);
attr_hit_obj->indirect_object_uuids = NULL;
}
if (attr_hit_obj->all_object_uuids != NULL) {
free_bytes += utarray_size(attr_hit_obj->all_object_uuids) * sizeof(uuid_t);
utarray_free(attr_hit_obj->all_object_uuids);
attr_hit_obj->all_object_uuids = NULL;
}
HASH_DEL(rule_compile_state->attr_hit_objects_hashtbl, attr_hit_obj);
free_bytes += sizeof(struct attribute_hit_object_collection);
FREE(attr_hit_obj);
}
FREE(rule_compile_state);
@@ -1463,6 +1502,7 @@ int rule_runtime_match(struct rule_runtime *rule_rt, uuid_t *rule_uuids,
{
struct rule_compile_state *rule_compile_state = state->rule_compile_state;
struct rule_item *rule_items[rule_ids_size];
int clear_scan_not_obj_flag = 0;
utarray_clear(rule_compile_state->all_hit_conditions);
utarray_clear(rule_compile_state->exclude_not_conditions);
@@ -1484,7 +1524,7 @@ int rule_runtime_match(struct rule_runtime *rule_rt, uuid_t *rule_uuids,
rule_compile_state_add_hit_conditions(rule_compile_state, condition_id_kv->condition_ids);
}
if (attr_hit_obj_coll->need_not_condition) {
if (attr_hit_obj_coll->need_negate_condition) {
key.negate_option = 1;
HASH_FIND(hh, rule_rt->not_condition_id_kv_hash, &key, sizeof(key), condition_id_kv);
if (condition_id_kv != NULL) {
@@ -1492,27 +1532,27 @@ int rule_runtime_match(struct rule_runtime *rule_rt, uuid_t *rule_uuids,
}
}
}
if (attr_hit_obj_coll->need_scan_not_object) {
clear_scan_not_obj_flag = 1;
}
}
//not conditions
struct condition_id_kv *condition_id_kv = NULL, *tmp_condition_id_kv = NULL;
HASH_ITER(hh, rule_rt->not_condition_id_kv_hash, condition_id_kv, tmp_condition_id_kv) {
HASH_FIND_STR(rule_compile_state->attr_hit_objects_hashtbl, condition_id_kv->key.attribute_name, attr_hit_obj_coll);
if (attr_hit_obj_coll == NULL || attr_hit_obj_coll->need_not_condition == 0) {
if (attr_hit_obj_coll == NULL || attr_hit_obj_coll->need_negate_condition == 0) {
continue;
}
uuid_t *object_uuid = bsearch(&(condition_id_kv->key.object_uuid),
utarray_eltptr(attr_hit_obj_coll->all_object_uuids, 0),
utarray_len(attr_hit_obj_coll->all_object_uuids),
sizeof(uuid_t), compare_object_uuid);
if (object_uuid != NULL) {
if (utarray_find(attr_hit_obj_coll->all_object_uuids, &(condition_id_kv->key.object_uuid), compare_object_uuid) != NULL) {
continue;
}
rule_compile_state_add_hit_not_conditions(rule_compile_state, condition_id_kv->condition_ids);
if (state->maat_inst->opts.hit_path_on) {
if (state->maat_inst->opts.hit_path_on && attr_hit_obj_coll->need_scan_not_object) {
uuid_t null_uuid;
uuid_clear(null_uuid);
rule_compile_state_add_internal_hit_path(rule_compile_state, null_uuid,
@@ -1522,6 +1562,14 @@ int rule_runtime_match(struct rule_runtime *rule_rt, uuid_t *rule_uuids,
}
}
if (clear_scan_not_obj_flag) {
HASH_ITER(hh, rule_compile_state->attr_hit_objects_hashtbl, attr_hit_obj_coll, tmp) {
if (attr_hit_obj_coll->need_scan_not_object) {
attr_hit_obj_coll->need_scan_not_object = 0;
}
}
}
// all hit condition_id -> rule_id
size_t bool_match_ret =
maat_rule_bool_matcher_match(rule_rt, rule_compile_state,
@@ -1646,8 +1694,9 @@ void rule_compile_state_not_logic_update(struct maat *maat_inst, struct rule_com
struct attribute_hit_object_collection *attr_hit_obj_coll = rule_compile_state_get_attr_hit_obj_coll(maat_inst, rule_compile_state, attribute_name);
assert(attr_hit_obj_coll != NULL);
attr_hit_obj_coll->need_not_condition = 1;
rule_compile_state->Nth_scan = Nth_scan;
attr_hit_obj_coll->need_negate_condition = 1;
attr_hit_obj_coll->need_scan_not_object = 1;
attr_hit_obj_coll->Nth_scan = Nth_scan;
return;
}
@@ -1713,8 +1762,6 @@ size_t rule_compile_state_get_hit_objects(struct maat *maat_inst, struct rule_co
uuid_copy(object_array[i], *(uuid_t *)utarray_eltptr(attr_hit_obj_coll->all_object_uuids, i));
}
utarray_clear(attr_hit_obj_coll->all_object_uuids);
return i;
}

3008
test/maat_framework_gtest.cpp
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File diff suppressed because it is too large Load Diff

2
test/object_nesting/object_nesting_gtest.cpp
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@@ -31,7 +31,7 @@ struct object_group_rule {
struct object_item del_items[MAX_ITEM_NUM];
};
UT_icd ut_ex_object_id_icd = {sizeof(long long), NULL, NULL, NULL};
static UT_icd ut_ex_object_id_icd = {sizeof(long long), NULL, NULL, NULL};
static int
parse_config_file(const char *filename, struct object_group_rule *rules)