TSG-7756: QUIC.v13.1异常存在重启，解析client hello出错时，未对参数进行检查

5 files changed, 23 insertions, 13 deletions

diff --git a/demo/demo.cpp b/demo/demo.cpp
index e69845b..dfafb19 100644
--- a/demo/demo.cpp
+++ b/demo/demo.cpp
@@ -173,7 +173,7 @@ int parse_encrypt_client_hello(void *pstream, struct _quic_stream *quic_stream,
 	used_len+=skip_len;
 
 	extension_total_len=(int)get_value(payload, &used_len, 2);  //Extension length
-	if(!check_length(payload_len-used_len, extension_total_len))
+	if(!check_length(payload_len-used_len, extension_total_len) && (extension_total_len!=payload_len-used_len))
 	{
 		return flags;
 	}
diff --git a/src/gquic_process.cpp b/src/gquic_process.cpp
index 0f185ca..fa7f641 100644
--- a/src/gquic_process.cpp
+++ b/src/gquic_process.cpp
@@ -1169,7 +1169,7 @@ int parse_encrypt_client_hello(struct streaminfo *pstream, struct _quic_stream *
 	used_len+=skip_len;

 

 	extension_total_len=(int)get_value(payload, &used_len, 2);  //Extension length

-	if(!check_length(payload_len-used_len, extension_total_len))

+	if(!check_length(payload_len-used_len, extension_total_len) && (payload_len-used_len!=extension_total_len))

 	{

 		return flags;

 	}

@@ -1235,6 +1235,9 @@ int parse_decrypt_quic(struct streaminfo *pstream, struct _quic_context* _contex
 			{

 				_context->quic_info.client_hello=(struct _quic_stream *)dictator_malloc(pstream->threadnum, sizeof(struct _quic_stream));

 				memset(_context->quic_info.client_hello, 0, sizeof(struct _quic_stream));

+				_context->quic_info.client_hello->sni_idx=0xFF;

+				_context->quic_info.client_hello->ua_idx=0xFF;

+				_context->quic_info.client_hello->ver_idx=0xFF;

 			}

 			ret=parse_encrypt_client_hello(pstream, _context->quic_info.client_hello, a_packet, payload+*used_len, payload_len-*used_len); //Frame Type=1, offset=1, length=2

 			if(ret>0 && _context->call_business)

@@ -1314,7 +1317,7 @@ int quic_process(struct streaminfo *pstream, struct _quic_context* _context, int
 					ret=dissect_quic((char *)udp_detail->pdata, udp_detail->datalen, decrypt_payload, &decrypt_payload_len);

 					if(ret!=1)

 					{

-						return APP_STATE_DROPME;

+						return APP_STATE_GIVEME;

 					}

 					ret=parse_decrypt_quic(pstream, _context, a_packet, decrypt_payload, decrypt_payload_len, &used_len);

 					break;

@@ -1373,7 +1376,7 @@ unsigned int quic_protocol_identify(struct streaminfo *a_stream, void *a_packet,
 	ret=quic_process(a_stream, _context, a_stream->threadnum, a_packet);

 	if(ret!=PROT_STATE_DROPME && _context->is_quic!=QUIC_VERSION_UNKNOWN)

 	{

-		if(_context->quic_info.client_hello!=NULL)

+		if(_context->quic_info.client_hello!=NULL && _context->quic_info.client_hello->ext_tags!=NULL)

 		{

 			if(_context->quic_info.client_hello->sni_idx!=0xFF)

 			{

diff --git a/test/pcap/iquic/29/quic_result.json b/test/pcap/iquic/29/quic_result.json
index e9eb40e..6cee24e 100644
--- a/test/pcap/iquic/29/quic_result.json
+++ b/test/pcap/iquic/29/quic_result.json
@@ -4,8 +4,12 @@
 		"SNI":	"www.facebook.com",
 		"name":	"QUIC_RESULT_1"
 	}, {
+		"Tuple4":	"223.104.233.102.13650>203.208.40.98.443",
+		"VERSION":	"IETF QUIC 29",
+		"name":	"QUIC_RESULT_2"
+	}, {
 		"Tuple4":	"192.168.50.33.57220>114.250.70.38.443",
 		"VERSION":	"IETF QUIC 29",
 		"SNI":	"securepubads.g.doubleclick.net",
-		"name":	"QUIC_RESULT_2"
+		"name":	"QUIC_RESULT_3"
 }]
diff --git a/test/pcap/rfc9000/2-ietf-rfc9000-124.88.191.113.39716-114.250.66.33-443.pcap b/test/pcap/rfc9000/2-ietf-rfc9000-124.88.191.113.39716-114.250.66.33-443.pcap
new file mode 100644
index 0000000..ee760fb
--- /dev/null
+++ b/test/pcap/rfc9000/2-ietf-rfc9000-124.88.191.113.39716-114.250.66.33-443.pcap
diff --git a/test/pcap/rfc9000/quic_result.json b/test/pcap/rfc9000/quic_result.json
index 33179dc..38f21e3 100644
--- a/test/pcap/rfc9000/quic_result.json
+++ b/test/pcap/rfc9000/quic_result.json
@@ -1,8 +1,11 @@
-[
-	{
- 		"Tuple4":	"192.168.60.32.59699>64.233.164.84.443",
- 		"VERSION":	"IETF QUIC RFC9000",
- 		"SNI":	"accounts.google.com",
- 		"name":	"QUIC_RESULT_1"
- 	}
-]
+[{
+		"Tuple4":	"192.168.60.32.59699>64.233.164.84.443",
+		"VERSION":	"IETF QUIC RFC9000",
+		"SNI":	"accounts.google.com",
+		"name":	"QUIC_RESULT_1"
+	}, {
+		"Tuple4":	"124.88.191.113.39716>114.250.66.33.443",
+		"VERSION":	"IETF QUIC RFC9000",
+		"SNI":	"safebrowsing.googleapis.com",
+		"name":	"QUIC_RESULT_2"
+}]