Diff: tcp/https/https.c

Revision:

111:3600389d1add

Child:

142:a8c0890a58d1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tcp/https/https.c	Sun Jan 20 20:31:41 2019 +0000
@@ -0,0 +1,108 @@
+#include <stdbool.h>
+
+#include   "http.h"
+#include "tcpbuf.h"
+#include "action.h"
+#include    "net.h"
+#include    "log.h"
+#include    "led.h"
+#include  "fault.h"
+
+#define TLS_CONTENT_TYPE_ChangeCipher      20
+#define TLS_CONTENT_TYPE_Alert             21
+#define TLS_CONTENT_TYPE_Handshake         22
+#define TLS_CONTENT_TYPE_Application       23
+#define TLS_CONTENT_TYPE_Heartbeat         24
+
+#define TLS_HANDSHAKE_HelloRequest          0
+#define TLS_HANDSHAKE_ClientHello           1
+#define TLS_HANDSHAKE_ServerHello           2
+#define TLS_HANDSHAKE_NewSessionTicket      4
+#define TLS_HANDSHAKE_EncryptedExtensions   8
+#define TLS_HANDSHAKE_Certificate          11
+#define TLS_HANDSHAKE_ServerKeyExchange    12
+#define TLS_HANDSHAKE_CertificateRequest   13
+#define TLS_HANDSHAKE_ServerHelloDone      14
+#define TLS_HANDSHAKE_CertificateVerify    15
+#define TLS_HANDSHAKE_ClientKeyExchange    16
+#define TLS_HANDSHAKE_Finished             20
+
+#define DO_SERVER_HELLO 100
+
+static void logHandshakeType(char handshakeType)
+{
+    switch (handshakeType)
+    {
+        case TLS_HANDSHAKE_HelloRequest:        Log ("Hello request");        break;
+        case TLS_HANDSHAKE_ClientHello:         Log ("Client hello");         break;
+        case TLS_HANDSHAKE_ServerHello:         Log ("Server hello");         break;
+        case TLS_HANDSHAKE_NewSessionTicket:    Log ("New session ticket");   break;
+        case TLS_HANDSHAKE_EncryptedExtensions: Log ("Encrypted extensions"); break;
+        case TLS_HANDSHAKE_Certificate:         Log ("Certificate");          break;
+        case TLS_HANDSHAKE_ServerKeyExchange:   Log ("Server key exchange");  break;
+        case TLS_HANDSHAKE_CertificateRequest:  Log ("Certificate request");  break;
+        case TLS_HANDSHAKE_ServerHelloDone:     Log ("Server hello done");    break;
+        case TLS_HANDSHAKE_CertificateVerify:   Log ("Certificate verify");   break;
+        case TLS_HANDSHAKE_ClientKeyExchange:   Log ("Client key exchange");  break;
+        case TLS_HANDSHAKE_Finished:            Log ("Finished");             break;
+        default:                                LogF("%02hX", handshakeType); break;
+    }
+}
+static void logContentType(char contentType)
+{
+    switch (contentType)
+    {
+        case TLS_CONTENT_TYPE_ChangeCipher: Log ("Change cipher");      break;
+        case TLS_CONTENT_TYPE_Alert:        Log ("Alert");              break;
+        case TLS_CONTENT_TYPE_Handshake:    Log ("Handshake");          break;
+        case TLS_CONTENT_TYPE_Application:  Log ("Application");        break;
+        case TLS_CONTENT_TYPE_Heartbeat:    Log ("Heartbeat");          break;
+        default:                            LogF("%02hX", contentType); break;
+    }
+}
+
+bool HttpsTrace = true;
+
+void HttpsHandleRequest(int size, char* pRequestStream, uint32_t positionInRequestStream, int* pToDo)
+{
+    
+    if (HttpsTrace)
+    {
+        LogF("HTTPS <<< %d (%u)\r\n", size, positionInRequestStream);
+    }
+    //Handle request for the first packet of data received but leave todo the same after that.
+    if (size == 0) return;
+    if (positionInRequestStream != 0) return;
+    char contentType = pRequestStream[0];
+    if (HttpsTrace) Log("      content type: "); logContentType(contentType); Log("\r\n");
+    switch (contentType)
+    {
+        case TLS_CONTENT_TYPE_Handshake:
+            {
+                char handshakeType = pRequestStream[5];
+                if (HttpsTrace) Log("      handshake type: "); logHandshakeType(handshakeType); Log("\r\n");
+                *pToDo = DO_SERVER_HELLO;
+                return;
+            }
+        default:
+            Log("HTTPS - ignoring untreated content type\r\n");
+            *pToDo = 0;
+            return;
+    }
+    //ECDHE-RSA-AES128-GCM-SHA256
+}
+static void sendServerHello()
+{
+    Log("     sending server hello\r\n");
+}
+void HttpsSendReply(int* pSize, char* pReplyStream, uint32_t positionInReplyStream, uint16_t mss, int todo)
+{
+    TcpBufStart(positionInReplyStream, mss, pReplyStream);
+    if (todo == DO_SERVER_HELLO) sendServerHello();
+    *pSize = TcpBufLength();
+
+    if (HttpsTrace)
+    {
+        LogF("HTTPS >>> %d (%d)\r\n", *pSize, positionInReplyStream);
+    }
+}