TSG-11860 - 支持匹配Tunnel Object作为策略条件,以及输出Tunnel Object信息至安全日志和过渡日志
This commit is contained in:
377
src/tsg_rule.cpp
377
src/tsg_rule.cpp
@@ -1614,37 +1614,113 @@ void mirrored_profile_free(int table_id, MAAT_PLUGIN_EX_DATA* ad, long argl, voi
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}
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}
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static int get_fqdn_category_id(Maat_feather_t maat_feather, int table_id, char *fqdn, unsigned int *category_id, int category_id_num, void *logger, int thread_seq)
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void tunnel_catalog_new(int table_id, const char* key, const char* table_line, MAAT_PLUGIN_EX_DATA* ad, long argl, void *argp)
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{
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int i=0,j=0,ret=0;
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struct fqdn_category *ex_data_array[8]={0};
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struct tunnel_catalog *t_catalog=(struct tunnel_catalog *)calloc(sizeof(struct tunnel_catalog), 1);
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ret=Maat_fqdn_plugin_get_EX_data(maat_feather, table_id, fqdn, (MAAT_PLUGIN_EX_DATA *)ex_data_array, 8);
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if(ret>0)
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t_catalog->id=tsg_get_column_integer_value(table_line, 1);
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t_catalog->name=tsg_get_column_string_value(table_line, 2);
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t_catalog->type=tsg_get_column_string_value(table_line, 3);
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t_catalog->composition=tsg_get_column_string_value(table_line, 4);
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atomic_inc(&t_catalog->ref_cnt);
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*ad=(MAAT_PLUGIN_EX_DATA)t_catalog;
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FS_operate(g_tsg_para.fs2_handle, g_tsg_para.fs2_field_id[TSG_FS2_TUNNEL_CATALOG_ADD], 0, FS_OP_ADD, 1);
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return;
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}
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void tunnel_catalog_free(int table_id, MAAT_PLUGIN_EX_DATA* ad, long argl, void *argp)
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{
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if(*ad==NULL)
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{
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qsort(ex_data_array, ret, sizeof(struct fqdn_category *), sort_category_id);
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for(i=0; i<ret; i++)
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{
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if(j==0)
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{
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category_id[j++]=ex_data_array[i]->category_id;
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}
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else
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{
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if(j<category_id_num && ex_data_array[i]->category_id!=category_id[j-1])
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{
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category_id[j++]=ex_data_array[i]->category_id;
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}
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}
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fqdn_category_free(table_id, (MAAT_PLUGIN_EX_DATA *)&(ex_data_array[i]), 0, logger);
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}
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return ;
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}
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struct tunnel_catalog *t_catalog=(struct tunnel_catalog *)(*ad);
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if ((__sync_sub_and_fetch(&t_catalog->ref_cnt, 1) == 0))
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{
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_free_field(t_catalog->name);
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_free_field(t_catalog->type);
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_free_field(t_catalog->composition);
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_free_field((char *)(*ad));
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*ad=NULL;
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FS_operate(g_tsg_para.fs2_handle, g_tsg_para.fs2_field_id[TSG_FS2_TUNNEL_CATALOG_DEL], 0, FS_OP_ADD, 1);
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}
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}
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void tunnel_catalog_dup(int table_id, MAAT_PLUGIN_EX_DATA *to, MAAT_PLUGIN_EX_DATA *from, long argl, void *argp)
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{
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if((*from)!=NULL)
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{
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struct tunnel_catalog *t_catalog=(struct tunnel_catalog *)(*from);
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__sync_add_and_fetch(&(t_catalog->ref_cnt), 1);
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*to=*from;
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}
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}
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return j;
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void tunnel_endpoint_new(int table_id, const char* key, const char* table_line, MAAT_PLUGIN_EX_DATA* ad, long argl, void *argp)
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{
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struct tunnel_endpoint *t_endpoint=(struct tunnel_endpoint *)calloc(1, sizeof(struct tunnel_endpoint));
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t_endpoint->id=tsg_get_column_integer_value(table_line, 1);
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t_endpoint->description=tsg_get_column_string_value(table_line, 3);
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atomic_inc(&t_endpoint->ref_cnt);
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*ad=(MAAT_PLUGIN_EX_DATA)t_endpoint;
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FS_operate(g_tsg_para.fs2_handle, g_tsg_para.fs2_field_id[TSG_FS2_TUNNEL_ENDPOINT_ADD], 0, FS_OP_ADD, 1);
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return ;
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}
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void tunnel_endpoint_dup(int table_id, MAAT_PLUGIN_EX_DATA *to, MAAT_PLUGIN_EX_DATA *from, long argl, void *argp)
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{
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if((*from)!=NULL)
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{
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struct tunnel_endpoint *t_endpoint=(struct tunnel_endpoint *)(*from);
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atomic_inc(&t_endpoint->ref_cnt);
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(*to)=(*from);
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}
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return 0;
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return ;
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}
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void tunnel_endpoint_free(int table_id, MAAT_PLUGIN_EX_DATA* ad, long argl, void *argp)
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{
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if((*ad)!=NULL)
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{
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struct tunnel_endpoint *t_endpoint=(struct tunnel_endpoint *)*ad;
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if((__sync_sub_and_fetch(&t_endpoint->ref_cnt, 1) == 0))
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{
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_free_field(t_endpoint->description);
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_free_field((char *)(*ad));
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*ad=NULL;
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FS_operate(g_tsg_para.fs2_handle, g_tsg_para.fs2_field_id[TSG_FS2_TUNNEL_ENDPOINT_DEL], 0, FS_OP_ADD, 1);
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}
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}
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}
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void tunnel_label_new(int table_id, const char* key, const char* table_line, MAAT_PLUGIN_EX_DATA* ad, long argl, void *argp)
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{
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int label_id=tsg_get_column_integer_value(table_line, 1);
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*ad=(MAAT_PLUGIN_EX_DATA)(long)label_id;
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FS_operate(g_tsg_para.fs2_handle, g_tsg_para.fs2_field_id[TSG_FS2_TUNNEL_LABEL_ADD], 0, FS_OP_ADD, 1);
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return ;
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}
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void tunnel_label_dup(int table_id, MAAT_PLUGIN_EX_DATA *to, MAAT_PLUGIN_EX_DATA *from, long argl, void *argp)
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{
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if((*from)!=NULL)
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{
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(*to)=(*from);
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}
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return ;
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}
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void tunnel_label_free(int table_id, MAAT_PLUGIN_EX_DATA* ad, long argl, void *argp)
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{
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FS_operate(g_tsg_para.fs2_handle, g_tsg_para.fs2_field_id[TSG_FS2_TUNNEL_LABEL_DEL], 0, FS_OP_ADD, 1);
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}
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static Maat_feather_t init_maat_feather(const char* conffile, char* instance_name, char *module, void *maat_logger)
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@@ -1822,6 +1898,11 @@ int tsg_rule_init(const char* conffile, void *logger)
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MESA_load_profile_string_def(conffile, "MAAT", "TRAFFIC_MIRROR_PROFILE", g_tsg_para.table_name[TABLE_PROFILE_MIRROR], _MAX_TABLE_NAME_LEN, (char *)"TSG_PROFILE_TRAFFIC_MIRROR");
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MESA_load_profile_string_def(conffile, "MAAT", "DTLS_SNI_TABLE", g_tsg_para.table_name[TABLE_DTLS_SNI], _MAX_TABLE_NAME_LEN, "TSG_FIELD_DTLS_SNI");
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MESA_load_profile_string_def(conffile, "MAAT", "TUNNEL_ID_TABLE", g_tsg_para.table_name[TABLE_TUNNEL_ID], _MAX_TABLE_NAME_LEN, "TSG_OBJ_TUNNEL_ID");
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MESA_load_profile_string_def(conffile, "MAAT", "TUNNEL_CATALOG_TABLE", g_tsg_para.table_name[TABLE_TUNNEL_CATALOG], _MAX_TABLE_NAME_LEN, "TSG_TUNNEL_CATALOG");
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MESA_load_profile_string_def(conffile, "MAAT", "TUNNEL_ENDPOINT_TABLE", g_tsg_para.table_name[TABLE_TUNNEL_ENDPOINT], _MAX_TABLE_NAME_LEN, "TSG_TUNNEL_ENDPOINT");
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MESA_load_profile_string_def(conffile, "MAAT", "TUNNEL_LABEL_TABLE", g_tsg_para.table_name[TABLE_TUNNEL_LABEL], _MAX_TABLE_NAME_LEN, "TSG_TUNNEL_LABEL");
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MESA_load_profile_int_def(conffile, "MAAT","LOG_LEVEL", &log_level, 30);
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MESA_load_profile_string_def(conffile, "MAAT", "LOG_PATH", log_path, sizeof(log_path), "./tsglog/maat/tsg_maat.log");
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@@ -2003,6 +2084,49 @@ int tsg_rule_init(const char* conffile, void *logger)
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return -1;
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}
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ret=Maat_bool_plugin_EX_register(g_tsg_maat_feather,
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g_tsg_para.table_id[TABLE_TUNNEL_CATALOG],
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tunnel_catalog_new,
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tunnel_catalog_free,
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tunnel_catalog_dup,
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0,
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NULL);
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if(ret<0)
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{
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MESA_handle_runtime_log(g_tsg_para.maat_logger, RLOG_LV_FATAL, "REGISTER_TABLE", "Maat_bool_plugin_EX_register failed, table_name: %s", g_tsg_para.table_name[TABLE_TUNNEL_CATALOG]);
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return -1;
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}
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ret=Maat_plugin_EX_register(g_tsg_maat_feather,
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g_tsg_para.table_id[TABLE_TUNNEL_ENDPOINT],
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tunnel_endpoint_new,
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tunnel_endpoint_free,
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tunnel_endpoint_dup,
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NULL,
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0,
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NULL);
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if(ret<0)
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{
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MESA_handle_runtime_log(g_tsg_para.maat_logger, RLOG_LV_FATAL, "REGISTER_TABLE", "Maat_plugin_EX_register failed, table_name: %s", g_tsg_para.table_name[TABLE_TUNNEL_ENDPOINT]);
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return -1;
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}
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ret=Maat_plugin_EX_register(g_tsg_maat_feather,
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g_tsg_para.table_id[TABLE_TUNNEL_LABEL],
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tunnel_label_new,
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tunnel_label_free,
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tunnel_label_dup,
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NULL,
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0,
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NULL);
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if(ret<0)
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{
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MESA_handle_runtime_log(g_tsg_para.maat_logger, RLOG_LV_FATAL, "REGISTER_TABLE", "Maat_plugin_EX_register failed, table_name: %s", g_tsg_para.table_name[TABLE_TUNNEL_LABEL]);
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return -1;
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}
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//init dynamic maat feather
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MESA_load_profile_int_def(conffile, "MAAT", "DYNAMIC_MAAT_SWITCH", &g_tsg_para.dynamic_maat_switch, 0);
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if(g_tsg_para.dynamic_maat_switch==1)
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@@ -2081,6 +2205,39 @@ int tsg_rule_init(const char* conffile, void *logger)
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return 0;
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}
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static int get_fqdn_category_id(Maat_feather_t maat_feather, int table_id, char *fqdn, unsigned int *category_id, int category_id_num, void *logger, int thread_seq)
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{
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int i=0,j=0,ret=0;
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struct fqdn_category *ex_data_array[8]={0};
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ret=Maat_fqdn_plugin_get_EX_data(maat_feather, table_id, fqdn, (MAAT_PLUGIN_EX_DATA *)ex_data_array, 8);
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if(ret>0)
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{
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qsort(ex_data_array, ret, sizeof(struct fqdn_category *), sort_category_id);
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for(i=0; i<ret; i++)
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{
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if(j==0)
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{
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category_id[j++]=ex_data_array[i]->category_id;
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}
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else
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{
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if(j<category_id_num && ex_data_array[i]->category_id!=category_id[j-1])
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{
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category_id[j++]=ex_data_array[i]->category_id;
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}
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}
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fqdn_category_free(table_id, (MAAT_PLUGIN_EX_DATA *)&(ex_data_array[i]), 0, logger);
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}
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return j;
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}
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return 0;
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}
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int tsg_pull_policy_result(struct streaminfo *a_stream, PULL_RESULT_TYPE pull_result_type, Maat_rule_t*result, int result_num, struct identify_info *identify_info)
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{
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int num=0;
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@@ -2363,15 +2520,115 @@ static unsigned short get_trans_protocol(const struct streaminfo *a_stream)
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return 255;
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}
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int tsg_scan_addr(Maat_feather_t maat_feather, const struct streaminfo *a_stream, tsg_protocol_t proto, scan_status_t *mid, Maat_rule_t*result, int result_num)
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int tsg_get_endpoint_id(const struct streaminfo *a_stream, int table_id, struct tunnel_endpoint **client_endpoint, struct tunnel_endpoint **server_endpoint)
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{
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int hit_num=0,maat_ret=0;
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unsigned short tans_proto=0;
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char dest_ip[128]={0}, source_ip[128]={0};
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switch(a_stream->addr.addrtype)
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{
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case ADDR_TYPE_IPV4:
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inet_ntop(AF_INET, &(a_stream->addr.tuple4_v4->saddr), source_ip, sizeof(source_ip));
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inet_ntop(AF_INET, &(a_stream->addr.tuple4_v4->daddr), dest_ip, sizeof(dest_ip));
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break;
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case ADDR_TYPE_IPV6:
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inet_ntop(AF_INET6, (a_stream->addr.tuple4_v6->saddr), source_ip, sizeof(source_ip));
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inet_ntop(AF_INET6, (a_stream->addr.tuple4_v6->daddr), dest_ip, sizeof(dest_ip));
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break;
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default:
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return 0;
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break;
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}
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if(*client_endpoint==NULL)
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{
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*client_endpoint=(struct tunnel_endpoint *)Maat_plugin_get_EX_data(g_tsg_maat_feather, table_id, source_ip);
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}
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if(*server_endpoint==NULL)
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{
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*server_endpoint=(struct tunnel_endpoint *)Maat_plugin_get_EX_data(g_tsg_maat_feather, table_id, dest_ip);
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}
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return 0;
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}
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int tsg_get_vlan_label_id(struct single_layer_vlan_addr *vlan_array, int vlan_array_num, unsigned long long *label_id_array, int label_id_array_num)
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{
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int i=0,idx=0;
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char label[32]={0};
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MAAT_PLUGIN_EX_DATA label_id=NULL;
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if(vlan_array_num<=0 || label_id_array_num<=0 || vlan_array==NULL || label_id_array==NULL)
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{
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return 0;
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}
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for(i=0; i<vlan_array_num; i++)
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{
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snprintf(label, sizeof(label), "%d", vlan_array[i].VID);
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label_id=Maat_plugin_get_EX_data(g_tsg_maat_feather, g_tsg_para.table_id[TABLE_TUNNEL_LABEL], label);
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if(label_id==NULL)
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{
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continue;
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}
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if(idx>=label_id_array_num)
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{
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break;
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}
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label_id_array[idx++]=(long long)(label_id);
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}
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return idx;
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}
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#define TUNNEL_BOOL_ID_MAX 16
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#define TUNNEL_CATALOG_MAX 16
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int tsg_scan_tunnel_id(Maat_feather_t maat_feather, struct Maat_rule_t *result, int result_num, scan_status_t *mid, unsigned long long *bool_id_array, int bool_id_array_idx, int thread_seq)
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{
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int i=0,ret=0;
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int maat_ret=0, hit_num=0;
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struct tunnel_catalog *t_catalog[TUNNEL_CATALOG_MAX];
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ret=Maat_bool_plugin_get_EX_data(g_tsg_maat_feather, g_tsg_para.table_id[TABLE_TUNNEL_CATALOG], bool_id_array, bool_id_array_idx, (void**)(&t_catalog), TUNNEL_CATALOG_MAX);
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for(i=0; i<ret; i++)
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{
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maat_ret=Maat_scan_intval(maat_feather, g_tsg_para.table_id[TABLE_TUNNEL_ID], t_catalog[i]->id, result, result_num-hit_num, mid, thread_seq);
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if(maat_ret>0)
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{
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hit_num+=maat_ret;
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}
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tunnel_catalog_free(g_tsg_para.table_id[TABLE_TUNNEL_CATALOG], (MAAT_PLUGIN_EX_DATA *)&(t_catalog[i]), 0, NULL);
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}
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return hit_num;
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}
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int tsg_scan_nesting_addr(Maat_feather_t maat_feather, const struct streaminfo *a_stream, tsg_protocol_t proto, scan_status_t *mid, struct Maat_rule_t *result, int result_num)
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{
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int ret=0,hit_num=0;
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unsigned int proto_id=0;
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struct ipaddr t_addr;
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struct ipaddr* p_addr=NULL;
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const struct streaminfo *cur_stream = a_stream;
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unsigned short tans_proto=0;
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int bool_id_array_idx=0;
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unsigned long long bool_id_array[TUNNEL_BOOL_ID_MAX]={0};
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struct session_attribute_label *attribute_label=NULL;
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if(result==NULL || result_num<=0 || a_stream==NULL || maat_feather==NULL)
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{
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MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_DEBUG, "SCAN_NESTING_ADDR", "result==NULL || result_num<=0 || maat_feather==NULL || a_stream==NULL");
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return -1;
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}
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attribute_label=(struct session_attribute_label *)project_req_get_struct(a_stream, g_tsg_para.session_attribute_project_id);
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if(attribute_label==NULL)
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{
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attribute_label=(struct session_attribute_label *)dictator_malloc(a_stream->threadnum, sizeof(struct session_attribute_label));
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memset(attribute_label, 0, sizeof(struct session_attribute_label));
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}
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do
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{
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@@ -2393,11 +2650,11 @@ int tsg_scan_addr(Maat_feather_t maat_feather, const struct streaminfo *a_stream
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{
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t_addr.addrtype = ADDR_TYPE_IPV6;
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}
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p_addr = &t_addr;
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p_addr=&t_addr;
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}
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else
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{
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p_addr = (struct ipaddr *)&cur_stream->addr;
|
||||
p_addr=(struct ipaddr *)&cur_stream->addr;
|
||||
}
|
||||
|
||||
if(p_addr==NULL)
|
||||
@@ -2406,25 +2663,25 @@ int tsg_scan_addr(Maat_feather_t maat_feather, const struct streaminfo *a_stream
|
||||
}
|
||||
|
||||
tans_proto=get_trans_protocol(cur_stream);
|
||||
maat_ret=Maat_scan_proto_addr(maat_feather, g_tsg_para.table_id[TABLE_IP_ADDR], p_addr, tans_proto, result+hit_num, result_num-hit_num, mid, (int)cur_stream->threadnum);
|
||||
if(maat_ret>0)
|
||||
ret=Maat_scan_proto_addr(maat_feather, g_tsg_para.table_id[TABLE_IP_ADDR], p_addr, tans_proto, result+hit_num, result_num-hit_num, mid, (int)cur_stream->threadnum);
|
||||
if(ret>0)
|
||||
{
|
||||
MESA_handle_runtime_log(g_tsg_para.logger,
|
||||
RLOG_LV_DEBUG,
|
||||
"SCAN_IP",
|
||||
"Hit addr: %s scan ret: %d policy_id: %d service: %d action: %d",
|
||||
PRINTADDR(a_stream, g_tsg_para.level),
|
||||
maat_ret,
|
||||
ret,
|
||||
result[hit_num].config_id,
|
||||
result[hit_num].service_id,
|
||||
(unsigned char)result[hit_num].action
|
||||
);
|
||||
|
||||
hit_num+=maat_ret;
|
||||
hit_num+=ret;
|
||||
}
|
||||
else
|
||||
{
|
||||
MESA_handle_runtime_log(g_tsg_para.logger,RLOG_LV_DEBUG, "SCAN_IP", "No hit addr: %s scan ret: %d", PRINTADDR(a_stream, g_tsg_para.level), maat_ret);
|
||||
MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_DEBUG, "SCAN_IP", "No hit addr: %s scan ret: %d", PRINTADDR(a_stream, g_tsg_para.level), ret);
|
||||
}
|
||||
break;
|
||||
case ADDR_TYPE_L2TP:
|
||||
@@ -2435,32 +2692,35 @@ int tsg_scan_addr(Maat_feather_t maat_feather, const struct streaminfo *a_stream
|
||||
proto_id=tsg_l7_protocol_name2id(g_tsg_proto_name2id[PROTO_PPTP].name);
|
||||
hit_num+=tsg_scan_app_id_policy(maat_feather, a_stream, result+hit_num, result_num-hit_num, mid, g_tsg_proto_name2id[PROTO_PPTP].name, proto_id, (int)a_stream->threadnum);
|
||||
break;
|
||||
case ADDR_TYPE_VLAN:
|
||||
bool_id_array_idx+=tsg_get_vlan_label_id(cur_stream->addr.vlan->c2s_addr_array, cur_stream->addr.vlan->c2s_layer_num, bool_id_array, TUNNEL_BOOL_ID_MAX-bool_id_array_idx);
|
||||
bool_id_array_idx+=tsg_get_vlan_label_id(cur_stream->addr.vlan->s2c_addr_array, cur_stream->addr.vlan->s2c_layer_num, bool_id_array, TUNNEL_BOOL_ID_MAX-bool_id_array_idx);
|
||||
break;
|
||||
case ADDR_TYPE_GPRS_TUNNEL:
|
||||
tsg_get_endpoint_id(cur_stream->pfather, g_tsg_para.table_id[TABLE_TUNNEL_ENDPOINT], &(attribute_label->client_endpoint), &(attribute_label->server_endpoint));
|
||||
if(attribute_label->client_endpoint!=NULL && bool_id_array_idx<TUNNEL_BOOL_ID_MAX)
|
||||
{
|
||||
bool_id_array[bool_id_array_idx++]=(long long)attribute_label->client_endpoint->id;
|
||||
}
|
||||
|
||||
if(attribute_label->server_endpoint!=NULL && bool_id_array_idx<TUNNEL_BOOL_ID_MAX)
|
||||
{
|
||||
bool_id_array[bool_id_array_idx++]=(long long)attribute_label->server_endpoint->id;
|
||||
}
|
||||
cur_stream=cur_stream->pfather; // skip gtp tuple4
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
cur_stream = cur_stream->pfather;
|
||||
|
||||
}while(cur_stream != NULL && hit_num < result_num);
|
||||
cur_stream=cur_stream->pfather;
|
||||
}while(cur_stream!=NULL && hit_num<result_num);
|
||||
|
||||
return hit_num;
|
||||
}
|
||||
|
||||
int tsg_scan_nesting_addr(Maat_feather_t maat_feather, const struct streaminfo *a_stream, tsg_protocol_t proto, scan_status_t *mid, Maat_rule_t*result, int result_num)
|
||||
{
|
||||
int ret=0;
|
||||
unsigned int proto_id=0;
|
||||
int hit_num=0;
|
||||
struct session_attribute_label *attribute_label=NULL;
|
||||
|
||||
if(result==NULL || result_num<=0 || a_stream==NULL || maat_feather==NULL)
|
||||
if(hit_num<result_num)
|
||||
{
|
||||
MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_DEBUG, "SCAN_NESTING_ADDR", "result==NULL || result_num<=0 || maat_feather==NULL || a_stream==NULL");
|
||||
return -1;
|
||||
tsg_scan_tunnel_id(maat_feather, result+hit_num, result_num-hit_num, mid, bool_id_array, bool_id_array_idx, (int)a_stream->threadnum);
|
||||
}
|
||||
|
||||
hit_num+=tsg_scan_addr(maat_feather, a_stream, proto, mid, result+hit_num, result_num-hit_num);
|
||||
|
||||
if(hit_num<result_num && proto>PROTO_UNKONWN && proto<PROTO_MAX)
|
||||
{
|
||||
proto_id=tsg_l7_protocol_name2id(g_tsg_proto_name2id[proto].name);
|
||||
@@ -2472,13 +2732,6 @@ int tsg_scan_nesting_addr(Maat_feather_t maat_feather, const struct streaminfo *
|
||||
}
|
||||
}
|
||||
|
||||
attribute_label=(struct session_attribute_label *)project_req_get_struct(a_stream, g_tsg_para.session_attribute_project_id);
|
||||
if(attribute_label==NULL)
|
||||
{
|
||||
attribute_label=(struct session_attribute_label *)dictator_malloc(a_stream->threadnum, sizeof(struct session_attribute_label));
|
||||
memset(attribute_label, 0, sizeof(struct session_attribute_label));
|
||||
}
|
||||
|
||||
if(hit_num<result_num)
|
||||
{
|
||||
tsg_get_ip_location(a_stream, g_tsg_para.table_id[TABLE_LOCATION_USER_DEFINED], (void **)&(attribute_label->client_location), (void **)&(attribute_label->server_location));
|
||||
@@ -2514,7 +2767,7 @@ int tsg_scan_nesting_addr(Maat_feather_t maat_feather, const struct streaminfo *
|
||||
hit_num+=tsg_scan_gtp_phone_number_policy(maat_feather, a_stream, result+hit_num, result_num-hit_num, mid,attribute_label->user_info->msisdn, (int)a_stream->threadnum);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
ret=project_req_add_struct((struct streaminfo *)a_stream, g_tsg_para.session_attribute_project_id, (void *)attribute_label);
|
||||
if(ret<0)
|
||||
{
|
||||
|
||||
Reference in New Issue
Block a user