105 lines
3.6 KiB
C
105 lines
3.6 KiB
C
/*
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**********************************************************************************************
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* File: adapter_hs.h
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* Description:
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* Authors: Liu wentan <liuwentan@geedgenetworks.com>
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* Date: 2022-10-31
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* Copyright: (c) Since 2022 Geedge Networks, Ltd. All rights reserved.
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***********************************************************************************************
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*/
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#ifndef _ADAPTER_HS_H_
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#define _ADAPTER_HS_H_
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include <stddef.h>
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#include <stdint.h>
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#include "log/log.h"
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#include "../expr_matcher.h"
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#include "../expr_matcher_inc.h"
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int hs_verify_regex_expression(const char *regex_expr, struct log_handle *logger);
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/**
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* @brief new adapter_hs literal instance
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*
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* @param rules: logic AND expression's array
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* @param n_rule: the number of logic AND expression's array
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* @param nr_worker_threads: the number of scan threads which will call adapter_hs_scan()
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*
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* @retval the pointer to adapter_hs literal instance
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*/
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void *hs_lit_engine_new(struct expr_rule *rules, size_t n_rule,
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struct pattern_attribute *pat_attr,
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void *hs_lit_db, size_t n_thread,
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struct log_handle *logger);
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void *hs_regex_engine_new(struct expr_rule *rules, size_t n_rule,
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struct pattern_attribute *pat_attr,
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void *hs_regex_db, size_t n_thread,
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struct log_handle *logger);
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void hs_lit_engine_free(void *hs_lit_engine);
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void hs_regex_engine_free(void *hs_regex_engine);
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/**
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* @brief scan input data to match logic AND expression, return all matched expr_id
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*
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* @param hs_lit: adapter_hs literal instance obtained by adapter_hs_lit_new()
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* @param thread_id: the thread_id of caller
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* @param data: data to be scanned
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* @param data_len: the length of data to be scanned
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* @param results: the array of expr_id
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* @param n_results: number of elements in array of expr_id
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*/
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int hs_lit_engine_scan(void *hs_lit_engine, int thread_id,
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const char *data, size_t data_len,
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unsigned long long *pattern_id_array,
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size_t array_size, size_t *n_pattern_id);
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int hs_regex_engine_scan(void *hs_regex_engine, int thread_id,
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const char *data, size_t data_len,
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unsigned long long *pattern_id_array,
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size_t array_size, size_t *n_pattern_id);
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void *hs_lit_stream_open(void *hs_lit_engine, int thread_id);
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void *hs_regex_stream_open(void *hs_regex_engine, int thread_id);
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void hs_lit_stream_close(void *hs_lit_stream);
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void hs_regex_stream_close(void *hs_regex_stream);
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int hs_lit_stream_scan(void *hs_lit_stream, const char *data, size_t data_len,
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unsigned long long *pattern_id_array, size_t array_size,
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size_t *n_pattern_id);
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int hs_regex_stream_scan(void *hs_regex_stream, const char *data, size_t data_len,
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unsigned long long *pattern_id_array, size_t array_size,
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size_t *n_pattern_id);
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/**
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* @brief build database
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*/
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void *hs_compile_data_new(enum expr_pattern_type pat_type, size_t n_patterns);
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void hs_compile_data_free(void *compile_data);
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void hs_populate_compile_data(void *compile_data, size_t index, int pattern_id,
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char *pat, size_t pat_len, int case_sensitive);
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int hs_build_lit_db(void **hs_lit_db, void *compile_data, struct log_handle *logger);
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int hs_build_regex_db(void **hs_regex_db, void *compile_data, struct log_handle *logger);
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#ifdef __cplusplus
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}
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#endif
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#endif |