第一个数据包仅解析一次,节省cpu

include/quic.h

@@ -49,7 +49,7 @@ struct quic_info
 
 //buff_len minimun 32bytes
 int quic_version_int2string(unsigned int version, char *buff, int buff_len);
-//ret: 0: not quic, >0: quic version
+//ret: NULL: not quic, quic_info: quic version
-unsigned int quic_protocol_identify(struct streaminfo *a_stream, void *a_packet, char *out_sni, int *out_sni_len, char *out_ua, int *out_ua_len);
+struct quic_info *quic_protocol_identify(const struct streaminfo *a_stream);
 
 #endif /* SRC__QUIC_H__ */

src/quic_entry.cpp

@@ -6,9 +6,11 @@
  */
  
 #include <stdio.h>
-#include <MESA/stream_inc/stream_base.h>
+
-#include <MESA/MESA_handle_logger.h>
+#include <MESA/stream.h>
 #include <MESA/MESA_prof_load.h>
+#include <MESA/MESA_handle_logger.h>
+
 #include "quic.h"
 #include "quic_entry.h"
 #include "quic_process.h"
@@ -141,44 +143,44 @@ void quic_free_client_hello(struct quic_client_hello *client_hello, int thread_s
 	return ;
 }
 
-void quic_free_context(void** pme, int thread_seq)
+void quic_free_context(const struct streaminfo *a_stream, int bridge_id, void *data)
 {
-	if(NULL==*pme)
+	if(NULL!=data)
 	{
-		return ;
+		struct quic_context *context = (struct quic_context *)data;
+		quic_free_client_hello(context->quic_info.client_hello, a_stream->threadnum);
+		
+		dictator_free(a_stream->threadnum, data);
 	}
-	
-	struct quic_context *context = (struct quic_context *)*pme;
-	quic_free_client_hello(context->quic_info.client_hello, thread_seq);
-	
-	dictator_free(thread_seq, *pme);
-	*pme=NULL;
-	
-    return;
 }
 
-extern "C" unsigned char QUIC_ENTRY(struct streaminfo *pstream, void**pme, int thread_seq, void *a_packet)
+extern "C" unsigned char QUIC_ENTRY(const struct streaminfo *pstream, void**pme, int thread_seq, const void *a_packet)
 {
-	unsigned char state=0;
-	struct quic_context *context=(struct quic_context *)*pme;
-
 	if((g_quic_param.quic_interested_region_flag<QUIC_KEY) || (!is_quic_port(pstream)))
 	{
 		return APP_STATE_DROPME;
 	}
 
-	if(*pme==NULL)
+	if(pstream->opstate==OP_STATE_PENDING)
 	{
-		quic_init_context(pme, thread_seq);
+		*pme=stream_bridge_async_data_get(pstream, g_quic_param.context_bridge_id);
-		context=(struct quic_context *)*pme;
+		if(*pme==NULL)
+		{
+			*pme=dictator_malloc(thread_seq, sizeof(struct quic_context));
+			memset(*pme, 0, sizeof(struct quic_context));
+		}
 	}
+
+	unsigned char state=0;
+	struct quic_context *context=(struct quic_context *)*pme;
 	
 	state=quic_analyze_entry(pstream, context, thread_seq, a_packet);
 	
 	if(state&APP_STATE_DROPME || pstream->opstate==OP_STATE_CLOSE)
 	{	
 		quic_call_business_plug(pstream, context, NULL, 0, QUIC_INTEREST_KEY_MASK, a_packet);
-		quic_free_context(pme, thread_seq);
+		quic_free_context(pstream, g_quic_param.context_bridge_id, *pme);
+		stream_bridge_async_data_put(pstream, g_quic_param.context_bridge_id, NULL);
 		*pme=NULL;
 		return state;
 	}
@@ -230,7 +232,7 @@ extern "C" int QUIC_INIT(void)
 				 return -1;
 			 }
 			 
-			 strncpy(g_quic_param.quic_conf_regionname[region_id], region_name, strlen(region_name));
+			 memcpy(g_quic_param.quic_conf_regionname[region_id], region_name, MIN(sizeof(g_quic_param.quic_conf_regionname[region_id])-1, strlen(region_name)));
 			 g_quic_param.quic_region_cnt++;
 			 memset(region_name, 0, sizeof(region_name));
 		}
@@ -243,6 +245,9 @@ extern "C" int QUIC_INIT(void)
 		 return -1;
 	}
 
+	g_quic_param.context_bridge_id=stream_bridge_build("QUIC_CONTEXT", "w");
+	stream_bridge_register_data_free_cb(g_quic_param.context_bridge_id, quic_free_context);
+
 	return 0;
 }
 

src/quic_entry.h

@@ -3,6 +3,10 @@
 
 #include "quic.h"
 
+#ifndef MIN
+#define MIN(a, b)  	(((a) < (b)) ? (a) : (b))
+#endif
+
 #define FALSE	0x00
 #define TRUE 	0x01
 #define MAYBE 	0x02
@@ -29,6 +33,7 @@ struct quic_param
 	int quic_port_num;
 	int decrypted_switch;
 	int max_parse_pkt_num;
+	int context_bridge_id;
 	unsigned short quic_port_list[SUPPORT_QUIC_PORT_NUM];
 	char quic_conf_regionname[MAX_REGION_NUM][REGION_NAME_LEN];
 	char log_path[128];
@@ -47,8 +52,7 @@ enum quic_mes_type{
 };
 
 extern struct quic_param g_quic_param;
-int is_quic_port(struct streaminfo *pstream);
+int is_quic_port(const struct streaminfo *pstream);
-void quic_free_client_hello(struct quic_client_hello *client_hello, int thread_seq);
 
 #endif /* SRC_QUIC_ANALYSIS_H_ */
 

src/quic_process.cpp

@@ -31,10 +31,6 @@ enum PARSE_RESULT
 #define	PRINTADDR(a, b)	((b)<RLOG_LV_FATAL ? printaddr(&(a->addr), a->threadnum) : "")
 #endif
 
-#ifndef MIN
-#define MIN(a, b)  	(((a) < (b)) ? (a) : (b))
-#endif
-
 struct quic_client_hello_msg_hdr
 {
 	uint8_t handshake_type;
@@ -57,7 +53,7 @@ int check_port(unsigned short port)
 	return 0;
 }
 
-int is_quic_port(struct streaminfo *pstream)
+int is_quic_port(const struct streaminfo *pstream)
 {
 	unsigned short source=0, dest=0;
 	
@@ -152,7 +148,7 @@ int quic_call_business_state(struct quic_context *context)
 	return state;
 }
 
-unsigned char quic_call_business_plug(struct streaminfo *pstream, struct quic_context *context, void *buff, int buff_len, enum quic_interested_region region_mask, void *a_packet)
+unsigned char quic_call_business_plug(const struct streaminfo *pstream, struct quic_context *context, void *buff, int buff_len, enum quic_interested_region region_mask, const void *a_packet)
 {
 	char state=PROT_STATE_GIVEME;
 	char app_state=APP_STATE_GIVEME;
@@ -176,7 +172,7 @@ unsigned char quic_call_business_plug(struct streaminfo *pstream, struct quic_co
 		session_info.buf=buff;
 		session_info.buflen=buff_len;
 	}
-	state=PROT_PROCESS(&session_info, &(context->business_pme), pstream->threadnum, pstream, a_packet);
+	state=PROT_PROCESS(&session_info, &(context->business_pme), pstream->threadnum, (struct streaminfo *)pstream, a_packet);
 
 	if(state&PROT_STATE_DROPPKT)
 	{
@@ -812,12 +808,12 @@ unsigned char parse_quic_all_version(struct quic_info *quic_info, const char *pa
 }
 
 
-unsigned char quic_analyze_entry(struct streaminfo *pstream, struct quic_context* context, int thread_seq, void* a_packet)
+unsigned char quic_analyze_entry(const struct streaminfo *pstream, struct quic_context* context, int thread_seq, const void* a_packet)
 {
 	unsigned char parse_result=PARSE_RESULT_UNKNOWN;
 	char state=APP_STATE_GIVEME;
 
-	if(pstream==NULL || pstream->pudpdetail==NULL)
+	if(pstream==NULL || pstream->pudpdetail==NULL || context==NULL)
 	{
 		return APP_STATE_DROPME;
 	}
@@ -826,7 +822,7 @@ unsigned char quic_analyze_entry(struct streaminfo *pstream, struct quic_context
 	
 	switch(context->pre_parse_state)
 	{
-		case	PARSE_RESULT_CLIENT_HELLO:			
+		case	PARSE_RESULT_CLIENT_HELLO:
 			parse_result=PARSE_RESULT_PAYLOAD;
 			break;
 		case	PARSE_RESULT_VERSION:
@@ -839,6 +835,20 @@ unsigned char quic_analyze_entry(struct streaminfo *pstream, struct quic_context
 		case	PARSE_RESULT_PAYLOAD:
 		case	PARSE_RESULT_UNKNOWN:
 		default:
+			if(context->parse_first_pkt==1)
+			{
+				context->parse_first_pkt=0;
+				if(context->quic_info.client_hello==NULL)
+				{
+					parse_result=PARSE_RESULT_VERSION;
+				}
+				else
+				{
+					parse_result=PARSE_RESULT_CLIENT_HELLO;
+				}
+				break;
+			}
+			
 			if((context->parse_pkt_cnt++)>=g_quic_param.max_parse_pkt_num)
 			{
 				parse_result=PARSE_RESULT_PAYLOAD;
@@ -869,49 +879,30 @@ unsigned char quic_analyze_entry(struct streaminfo *pstream, struct quic_context
 	return state;
 }
 
-static int copy_client_hello_extension(char *src, char *dest, int d_len)
+struct quic_info *quic_protocol_identify(const struct streaminfo *a_stream)
 {
-	if(src==NULL || dest==NULL || d_len<=0)
-	{
-		return 0;
-	}
-	
-	int len=MIN((int)strlen(src), d_len-1);
-	memcpy(dest, src, len);
-	dest[len]='\0';
-	
-	return len;
-}
-
-unsigned int quic_protocol_identify(struct streaminfo *a_stream, void *a_packet, char *out_sni, int *out_sni_len, char *out_ua, int *out_ua_len)
-{
-	unsigned char parse_result=APP_STATE_GIVEME;
-	struct quic_info quic_info={0, NULL};
-	unsigned int quic_version=QUIC_VERSION_UNKNOWN;
-
 	if(!is_quic_port(a_stream) || a_stream==NULL || a_stream->pudpdetail==NULL)
 	{
-		return quic_version;
+		return NULL;
 	}
 
-	parse_result=parse_quic_all_version(&quic_info, (const char *)a_stream->pudpdetail->pdata, a_stream->pudpdetail->datalen, a_stream->threadnum);
+	struct quic_info tmp_quic_info={0, NULL};
+	unsigned char parse_result=APP_STATE_GIVEME;
+
+	parse_result=parse_quic_all_version(&tmp_quic_info, (const char *)a_stream->pudpdetail->pdata, a_stream->pudpdetail->datalen, a_stream->threadnum);
 	if(parse_result!=PARSE_RESULT_UNKNOWN)
 	{
-		if(quic_info.client_hello!=NULL)
+		struct quic_context *context=(struct quic_context *)dictator_malloc(a_stream->threadnum, sizeof(struct quic_context));
-		{
+		memset(context, 0, sizeof(struct quic_context));
-			*out_sni_len=copy_client_hello_extension(quic_info.client_hello->sni, out_sni, *out_sni_len);		
+		context->quic_info=tmp_quic_info;
-			*out_ua_len=copy_client_hello_extension(quic_info.client_hello->user_agent, out_ua, *out_ua_len);
+		context->parse_first_pkt=1;
-			quic_free_client_hello(quic_info.client_hello, a_stream->threadnum);			
+		context->pre_parse_state=PARSE_RESULT_UNKNOWN;
-		}
+		
-		else
+		stream_bridge_async_data_put(a_stream, g_quic_param.context_bridge_id, (void *)context);
-		{
+
-			*out_sni_len=0;
+		return &(context->quic_info);
-			*out_ua_len=0;
-		}
-				
-		quic_version=quic_info.quic_version;
 	}
 
-	return quic_version;
+	return NULL;
 }
 

src/quic_process.h

@@ -284,13 +284,14 @@ struct quic_context
 	unsigned char link_state;
 	unsigned char parse_pkt_cnt;
 	unsigned char pre_parse_state;
-	unsigned char padding[5];
+	unsigned char parse_first_pkt;
+	unsigned char padding[4];
 	void *business_pme;
 	struct quic_info quic_info;
 };
 
-unsigned char quic_analyze_entry(struct streaminfo *pstream, struct quic_context* context, int thread_seq, void* a_packet);
+unsigned char quic_analyze_entry(const struct streaminfo *pstream, struct quic_context* context, int thread_seq, const void* a_packet);
-unsigned char quic_call_business_plug(struct streaminfo *pstream, struct quic_context *context, void *buff, int buff_len, enum quic_interested_region region_mask, void *a_packet);
+unsigned char quic_call_business_plug(const struct streaminfo *pstream, struct quic_context *context, void *buff, int buff_len, enum quic_interested_region region_mask, const void *a_packet);
 
 #endif