TSG-1531 TFE 新增 DOH 插件

1.DOH 协议解析
2.DOH 协议还原
3.DOH POST请求 early response
4.DOH 策略扫描
5.tfe plugin 支持多个 bussiness 插件调用
6.Maat_feather 的创建从 pangu 剥离(涉及pangu/doh/ssl-policy)
7.增加 kafka 日志
8.增加测试用例

plugin/business/doh/src/pub.h

@@ -0,0 +1,100 @@
+#ifndef _PUB_H
+#define _PUB_H
+
+#ifdef __cpluscplus
+extern "C"
+{
+#endif
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <event2/buffer.h>
+#include <tfe_resource.h>
+#include <tfe_proxy.h>
+#include <tfe_plugin.h>
+#include <MESA/Maat_rule.h>
+#include <MESA/MESA_prof_load.h>
+#include <tfe_kafka_logger.h>
+
+#include "dns.h"
+
+#define MS_OK 0
+#define MS_ERROR -1
+
+enum pangu_http_stat
+{
+	STAT_SESSION,
+	STAT_LOG_NUM,
+	STAT_ACTION_HIJACK,
+	DOH_STAT_MAX
+};
+
+enum table_type
+{
+	TYPE_ADDR,
+	TYPE_APPID,
+	TYPE_QNAME,
+	TYPE_HOST,
+	TYPE_MAX
+};
+
+enum doh_content_type
+{
+	DOH_TYPE_MESSAGE,
+	DOH_TYPE_UDPWIREFORMAT,
+};
+
+struct maat_table
+{
+	int id;
+	char name[TFE_STRING_MAX];
+};
+
+struct doh_conf
+{
+	int enable;
+	int thread_num;
+
+	int local_level;
+	void *local_logger;
+
+	int entry_id;
+	int en_sendlog;
+	const char *device_id;
+	tfe_kafka_logger_t *kafka_logger;
+
+	int fs_id[DOH_STAT_MAX];
+	long long stat_val[DOH_STAT_MAX];
+	struct event *gcev;
+	struct event_base *gc_evbase;
+	screen_stat_handle_t fs_handle;
+
+	Maat_feather_t maat;
+	struct maat_table tables[TYPE_MAX];
+};
+
+struct doh_ctx
+{
+	int count;
+	u_int32_t min_ttl;
+	int thread_id;
+	int magic_num;
+	int manipulate;
+	int opts_num;
+	char *addr_string;
+	size_t result_num;
+	Maat_rule_t *result;
+	cheat_pkt_opt_t *opts;
+	scan_status_t scan_mid;
+	enum doh_content_type type;
+	struct evbuffer *http_req_body;
+	dns_info_t *doh_req;
+};
+
+int base64_encode(char *dst, int dstlen, const char *src, int srclen);
+int base64_decode(char *dst, int dstlen, const char *src, int srclen);
+
+#ifdef __cpluscplus
+}
+#endif
+#endif