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authoryulingjing <[email protected]>2019-07-31 16:03:48 +0800
committeryulingjing <[email protected]>2019-07-31 16:03:48 +0800
commitf69cf0b3c639b4744649d2f851ea1d3bf8c36128 (patch)
tree06c01b360f94cd3dd5036c9f85b48d0353104ac1 /src/include/MESA/Maat_rule.h
first commitHEADmaster
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diff --git a/src/include/MESA/Maat_rule.h b/src/include/MESA/Maat_rule.h
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+
+/*
+*****************Maat Deep Packet Inspection Policy Framework********
+* Maat is the Goddess of truth and justice in ancient Egyptian concept.
+* Her feather was the measure that determined whether the souls (considered
+* to reside in the heart) of the departed would reach the paradise of afterlife
+* successfully.
+* Author: [email protected], MESA
+* Version 2018-12-07 Plugin Extra Data.
+* NOTE: MUST compile with G++
+* All right reserved by Institute of Infomation Engineering,Chinese Academic of Science 2014~2018
+*********************************************************
+*/
+#ifndef H_MAAT_RULE_H_INCLUDE
+#define H_MAAT_RULE_H_INCLUDE
+#ifndef __cplusplus
+#error("This file should be compiled with C++ compiler")
+#endif
+#include <MESA/stream.h>
+enum MAAT_CHARSET
+{
+ CHARSET_NONE=0,
+ CHARSET_GBK,
+ CHARSET_BIG5,
+ CHARSET_UNICODE,
+ CHARSET_UTF8, // 4
+ CHARSET_BIN, //5
+ CHARSET_UNICODE_ASCII_ESC, // Unicode Escape format, prefix backslash-u hex, e.g. "\u627;"
+ CHARSET_UNICODE_ASCII_ALIGNED,//Unicode Escape format, prefix backslash-u with 4 bytes aligned, e.g. "\u0627"
+ CHARSET_UNICODE_NCR_DEC, //SGML Numeric character reference,decimal base, e.g. "&#1575;"
+ CHARSET_UNICODE_NCR_HEX, //SGML Numeric character reference,hexdecimal base, e.g. "&#x627;"
+ CHARSET_URL_ENCODE_GB2312, //URL encode with GB2312, e.g. the chinese word "china" was encoded to %D6%D0%B9%FA
+ CHARSET_URL_ENCODE_UTF8 //11, URL encode with UTF8,e.g. the chinese word "china" was encoded to %E4%B8%AD%E5%9B%BD
+};
+enum MAAT_ACTION
+{
+ MAAT_ACTION_BLOCK=0,
+ MAAT_ACTION_MONIT,
+ MAAT_ACTION_WHITE
+};
+enum MAAT_POS_TYPE
+{
+ MAAT_POSTYPE_EXPR=0,
+ MAAT_POSTYPE_REGEX
+};
+typedef void* scan_status_t;
+typedef void* stream_para_t;
+typedef void* Maat_feather_t;
+
+
+#define MAX_SERVICE_DEFINE_LEN 128
+#define MAX_HUGE_SERVICE_DEFINE_LEN (1024*4)
+struct Maat_rule_t
+{
+ int config_id;
+ int service_id;
+ char do_log;
+ char do_blacklist;
+ char action;
+ char reserved;
+ int serv_def_len;
+ char service_defined[MAX_SERVICE_DEFINE_LEN];
+};
+#define MAAT_RULE_UPDATE_TYPE_FULL 1
+#define MAAT_RULE_UPDATE_TYPE_INC 2
+typedef void Maat_start_callback_t(int update_type,void* u_para);
+typedef void Maat_update_callback_t(int table_id,const char* table_line,void* u_para);
+typedef void Maat_finish_callback_t(void* u_para);
+
+
+
+
+
+//--------------------HITTING DETAIL DESCRIPTION BEGIN
+
+#define MAAT_MAX_HIT_RULE_NUM 8
+#define MAAT_MAX_EXPR_ITEM_NUM 8
+#define MAAT_MAX_HIT_POS_NUM 8
+#define MAAT_MAX_REGEX_GROUP_NUM 8
+
+//NOTE position buffer as hitting_regex_pos and hit_pos,are ONLY valid before next scan or Maat_stream_scan_string_end
+struct regex_pos_t
+{
+ int group_num;
+ int hitting_regex_len;
+ const char* hitting_regex_pos;
+ int grouping_len[MAAT_MAX_REGEX_GROUP_NUM];
+ const char* grouping_pos[MAAT_MAX_REGEX_GROUP_NUM];
+};
+struct str_pos_t
+{
+ int hit_len;
+ const char* hit_pos;
+};
+struct sub_item_pos_t
+{
+ enum MAAT_POS_TYPE ruletype;
+ int hit_cnt;
+ union
+ {
+ struct regex_pos_t regex_pos[MAAT_MAX_HIT_POS_NUM];
+ struct str_pos_t substr_pos[MAAT_MAX_HIT_POS_NUM];
+ };
+};
+
+struct Maat_region_pos_t
+{
+
+ int region_id;
+ int sub_item_num;
+ struct sub_item_pos_t sub_item_pos[MAAT_MAX_EXPR_ITEM_NUM];
+};
+
+struct Maat_hit_detail_t
+{
+ int config_id;//set <0 if half hit;
+ int hit_region_cnt;
+ struct Maat_region_pos_t region_pos[MAAT_MAX_HIT_RULE_NUM];
+};
+//--------------------HITTING DETAIL DESCRIPTION END
+
+//Abondon interface ,left for compatible.
+Maat_feather_t Maat_summon_feather(int max_thread_num,
+ const char* table_info_path,
+ const char* ful_cfg_dir,
+ const char* inc_cfg_dir,
+ void*logger);//MESA_handle_logger
+//Abondon interface ,left for compatible.
+Maat_feather_t Maat_summon_feather_json(int max_thread_num,
+ const char* table_info_path,
+ const char* json_rule,
+ void* logger);
+
+Maat_feather_t Maat_feather(int max_thread_num,const char* table_info_path,void* logger);
+int Maat_initiate_feather(Maat_feather_t feather);
+
+enum MAAT_INIT_OPT
+{
+ MAAT_OPT_SCANDIR_INTERVAL_MS=1, //VALUE is interger, SIZE=sizeof(int). DEFAULT:1,000 milliseconds.
+ MAAT_OPT_EFFECT_INVERVAL_MS, //VALUE is interger, SIZE=sizeof(int). DEFAULT:60,000 milliseconds.
+ MAAT_OPT_FULL_CFG_DIR, //VALUE is a const char*, MUST end with '\0', SIZE= strlen(string+'\0')+1.DEFAULT: no default.
+ MAAT_OPT_INC_CFG_DIR, //VALUE is a const char*, MUST end with '\0', SIZE= strlen(string+'\0')+1.DEFAULT: no default.
+ MAAT_OPT_JSON_FILE_PATH, //VALUE is a const char*, MUST end with '\0', SIZE= strlen(string+'\0')+1.DEFAULT: no default.
+ MAAT_OPT_STAT_ON, //VALUE is NULL, SIZE is 0. MAAT_OPT_STAT_FILE_PATH must be set. Default: stat OFF.
+ MAAT_OPT_PERF_ON, //VALUE is NULL, SIZE is 0. MAAT_OPT_STAT_FILE_PATH must be set. Default: stat OFF.
+ MAAT_OPT_STAT_FILE_PATH, //VALUE is a const char*, MUST end with '\0', SIZE= strlen(string+'\0')+1. DEFAULT: no default.
+ MAAT_OPT_SCAN_DETAIL, //VALUE is interger *, SIZE=sizeof(int). 0: not return any detail;1: return hit pos, not include regex grouping.
+ // 2 return hit pos and regex grouping pos;DEFAULT:0
+ MAAT_OPT_INSTANCE_NAME, //VALUE is a const char*, MUST end with '\0', SIZE= strlen(string+'\0')+1, no more than 11 bytes.DEFAULT: MAAT_$tableinfo_path$.
+ MAAT_OPT_DECRYPT_KEY, //VALUE is a const char*, MUST end with '\0', SIZE= strlen(string+'\0')+1. No DEFAULT.
+ MAAT_OPT_REDIS_IP, //VALUE is a const char*, MUST end with '\0', SIZE= strlen(string+'\0')+1. No DEFAULT.
+ MAAT_OPT_REDIS_PORT, //VALUE is a unsigned short or a signed int, host order, SIZE= sizeof(unsigned short) or sizeof(int). No DEFAULT.
+ MAAT_OPT_REDIS_INDEX, //VALUE is interger *, 0~15, SIZE=sizeof(int). DEFAULT: 0.
+ MAAT_OPT_CMD_AUTO_NUMBERING, //VALUE is a interger *, 1 or 0, SIZE=sizeof(int). DEFAULT: 1.
+ MAAT_OPT_DEFERRED_LOAD, //VALUE is NULL,SIZE is 0. Default: Deffered initialization OFF.
+ MAAT_OPT_CUMULATIVE_UPDATE_OFF, //VALUE is NULL,SIZE is 0. Default: CUMMULATIVE UPDATE ON.
+ MAAT_OPT_LOAD_VERSION_FROM, //VALUE is a long long, SIZE=sizeof(long long). Default: Load the Latest. Only valid in redis mode, and maybe failed for too old.
+ //This option also disables background update.
+ MAAT_OPT_ENABLE_UPDATE, //VALUE is interger, SIZE=sizeof(int). 1: Enabled, 0:Disabled. DEFAULT: Backgroud update is enabled. Runtime setting is allowed.
+ MAAT_OPT_ACCEPT_TAGS, //VALUE is a const char*, MUST end with '\0', SIZE= strlen(string+'\0')+1. Format is a JSON, e.g.{"tags":[{"tag":"location","value":"Beijing/ChaoYang/Huayan/22A"},{"tag":"isp","value":"telecom"}]}
+ MAAT_OPT_FOREIGN_CONT_DIR, //VALUE is a const char*, MUST end with '\0', SIZE= strlen(string+'\0')+1. Specifies a local diretory to store foreign content. Default: []table_info_path]_files
+ MAAT_OPT_FOREIGN_CONT_LINGER //VALUE is interger *, SIZE=sizeof(int). Greater than 0: delete after VALUE seconds; 0: delete foreign content right after the notification callbacks; Less than 0: NEVER delete. Default: 0.
+ };
+//return -1 if failed, return 0 on success;
+int Maat_set_feather_opt(Maat_feather_t feather,enum MAAT_INIT_OPT type,const void* value,int size);
+enum MAAT_STATE_OPT
+{
+ MAAT_STATE_VERSION=1, //Get current maat version, if maat is in update progress, the updating version is returned. VALUE is long long, SIZE=sizeof(long long).
+ MAAT_STATE_LAST_UPDATING_TABLE, //Query at Maat_finish_callback_t to determine whether this table is the last one to update. VALUE is interger, SIZE=sizeof(int), 1:yes, 0: no
+ MAAT_STATE_IN_UPDATING
+};
+int Maat_read_state(Maat_feather_t feather, enum MAAT_STATE_OPT type, void* value, int size);
+
+void Maat_burn_feather(Maat_feather_t feather);
+
+//return table_id(>=0) if success,otherwise return -1;
+int Maat_table_register(Maat_feather_t feather,const char* table_name);
+//return 1 if success,otherwise return -1 incase invalid table_id or registed function number exceed 32;
+int Maat_table_callback_register(Maat_feather_t feather,short table_id,
+ Maat_start_callback_t *start,//MAAT_RULE_UPDATE_TYPE_*,u_para
+ Maat_update_callback_t *update,//table line ,u_para
+ Maat_finish_callback_t *finish,//u_para
+ void* u_para);
+
+
+enum MAAT_SCAN_OPT
+{
+ MAAT_SET_SCAN_DISTRICT=1, //VALUE is a const char*,SIZE= strlen(string).DEFAULT: no default.
+ MAAT_SET_SCAN_LAST_REGION //VALUE is NULL, SIZE=0. This option indicates that the follow scan is the last region of current scan cobination.
+};
+//return 0 if success, return -1 when failed;
+int Maat_set_scan_status(Maat_feather_t feather,scan_status_t* mid,enum MAAT_SCAN_OPT type,const void* value,int size);
+
+//Return hit rule number, return -1 when error occurs,return -2 when hit current region
+//mid MUST set to NULL before fist call
+int Maat_scan_intval(Maat_feather_t feather,int table_id
+ ,unsigned int intval
+ ,struct Maat_rule_t*result,int rule_num
+ ,scan_status_t *mid,int thread_num);
+int Maat_scan_addr(Maat_feather_t feather,int table_id
+ ,struct ipaddr* addr
+ ,struct Maat_rule_t*result,int rule_num
+ ,scan_status_t *mid,int thread_num);
+int Maat_scan_proto_addr(Maat_feather_t feather,int table_id
+ ,struct ipaddr* addr,unsigned short int proto
+ ,struct Maat_rule_t*result,int rule_num
+ ,scan_status_t *mid,int thread_num);
+int Maat_full_scan_string(Maat_feather_t feather,int table_id
+ ,enum MAAT_CHARSET charset,const char* data,int data_len
+ ,struct Maat_rule_t*result,int* found_pos,int rule_num
+ ,scan_status_t* mid,int thread_num);
+//hite_detail could be NULL if unconcern
+int Maat_full_scan_string_detail(Maat_feather_t feather,int table_id
+ ,enum MAAT_CHARSET charset,const char* data,int data_len
+ ,struct Maat_rule_t*result,int rule_num,struct Maat_hit_detail_t *hit_detail,int detail_num
+ ,int* detail_ret,scan_status_t* mid,int thread_num);
+
+stream_para_t Maat_stream_scan_string_start(Maat_feather_t feather,int table_id,int thread_num);
+int Maat_stream_scan_string(stream_para_t* stream_para
+ ,enum MAAT_CHARSET charset,const char* data,int data_len
+ ,struct Maat_rule_t*result,int* found_pos,int rule_num
+ ,scan_status_t* mid);
+//hited_detail could be NULL if unconcern
+int Maat_stream_scan_string_detail(stream_para_t* stream_para
+ ,enum MAAT_CHARSET charset,const char* data,int data_len
+ ,struct Maat_rule_t*result,int rule_num,struct Maat_hit_detail_t *hit_detail,int detail_num
+ ,int* detail_ret,scan_status_t* mid);
+void Maat_stream_scan_string_end(stream_para_t* stream_para);
+
+stream_para_t Maat_stream_scan_digest_start(Maat_feather_t feather,int table_id,unsigned long long total_len,int thread_num);
+int Maat_stream_scan_digest(stream_para_t* stream_para
+ ,const char* data,int data_len,unsigned long long offset
+ ,struct Maat_rule_t*result,int rule_num
+ ,scan_status_t* mid);
+void Maat_stream_scan_digest_end(stream_para_t* stream_para);
+
+int Maat_similar_scan_string(Maat_feather_t feather,int table_id
+ ,const char* data,int data_len
+ ,struct Maat_rule_t*result,int rule_num
+ ,scan_status_t* mid,int thread_num);
+
+void Maat_clean_status(scan_status_t* mid);
+
+typedef void* MAAT_RULE_EX_DATA;
+// The idx parameter is the index: this will be the same value returned by Maat_rule_get_ex_new_index() when the functions were initially registered.
+// Finally the argl and argp parameters are the values originally passed to the same corresponding parameters when Maat_rule_get_ex_new_index() was called.
+typedef void Maat_rule_EX_new_func_t(int idx, const struct Maat_rule_t* rule, const char* srv_def_large,
+ MAAT_RULE_EX_DATA* ad, long argl, void *argp);
+typedef void Maat_rule_EX_free_func_t(int idx, const struct Maat_rule_t* rule, const char* srv_def_large,
+ MAAT_RULE_EX_DATA* ad, long argl, void *argp);
+typedef void Maat_rule_EX_dup_func_t(int idx, MAAT_RULE_EX_DATA *to, MAAT_RULE_EX_DATA *from, long argl, void *argp);
+
+int Maat_rule_get_ex_new_index(Maat_feather_t feather, const char* compile_table_name,
+ Maat_rule_EX_new_func_t* new_func,
+ Maat_rule_EX_free_func_t* free_func,
+ Maat_rule_EX_dup_func_t* dup_func,
+ long argl, void *argp);
+//returned data is duplicated by dup_func of Maat_rule_get_ex_new_index, caller is responsible to free the data.
+MAAT_RULE_EX_DATA Maat_rule_get_ex_data(Maat_feather_t feather, const struct Maat_rule_t* rule, int idx);
+
+//Following functions are similar to Maat_rule_get_ex_data, except they are effective on plugin table.
+typedef void* MAAT_PLUGIN_EX_DATA;
+typedef void Maat_plugin_EX_new_func_t(int table_id, const char* key, const char* table_line, MAAT_PLUGIN_EX_DATA* ad, long argl, void *argp);
+typedef void Maat_plugin_EX_free_func_t(int table_id, MAAT_PLUGIN_EX_DATA* ad, long argl, void *argp);
+typedef void Maat_plugin_EX_dup_func_t(int table_id, MAAT_PLUGIN_EX_DATA *to, MAAT_PLUGIN_EX_DATA *from, long argl, void *argp);
+typedef int Maat_plugin_EX_key2index_func_t(const char* key);
+
+int Maat_plugin_EX_register(Maat_feather_t feather, int table_id,
+ Maat_plugin_EX_new_func_t* new_func,
+ Maat_plugin_EX_free_func_t* free_func,
+ Maat_plugin_EX_dup_func_t* dup_func,
+ Maat_plugin_EX_key2index_func_t* key2index_func,
+ long argl, void *argp);
+//Data is duplicated by dup_func of Maat_plugin_EX_register, caller is responsible to free the data.
+MAAT_PLUGIN_EX_DATA Maat_plugin_get_EX_data(Maat_feather_t feather, int table_id, const char* key);
+
+enum MAAT_RULE_OPT
+{
+ MAAT_RULE_SERV_DEFINE //VALUE is a char* buffer,SIZE= buffer size.
+};
+int Maat_read_rule(Maat_feather_t feather, const struct Maat_rule_t* rule, enum MAAT_RULE_OPT type, void* value, int size);
+
+
+#endif // H_MAAT_RULE_H_INCLUDE
+