Support TLS big buffers (#893)

tap/tlstapper/chunk.go

@@ -16,14 +16,15 @@ const FLAGS_IS_READ_BIT uint32 = (1 << 1)
 //	Be careful when editing, alignment and padding should be exactly the same in go/c.
 //
 type tlsChunk struct {
-	Pid      uint32
-	Tgid     uint32
-	Len      uint32
-	Recorded uint32
-	Fd       uint32
-	Flags    uint32
-	Address  [16]byte
-	Data     [4096]byte
+	Pid      uint32	// process id
+	Tgid     uint32	// thread id inside the process
+	Len      uint32	// the size of the native buffer used to read/write the tls data (may be bigger than tlsChunk.Data[])
+	Start    uint32	// the start offset withing the native buffer
+	Recorded uint32	// number of bytes copied from the native buffer to tlsChunk.Data[]
+	Fd       uint32	// the file descriptor used to read/write the tls data (probably socket file descriptor)
+	Flags    uint32 // bitwise flags
+	Address  [16]byte // ipv4 address and port
+	Data     [4096]byte // actual tls data
 }
 
 func (c *tlsChunk) getAddress() (net.IP, uint16, error) {