add MICROCHIP_TCPIP

ctaocrypt/src/asn.c

@@ -91,6 +91,11 @@
     #endif
     #define NO_TIME_H
     /* since Micrium not defining XTIME or XGMTIME, CERT_GEN not available */
+#elif defined(MICROCHIP_TCPIP)
+    #include <time.h>
+    #define XTIME(t1) pic32_time((t1))
+    #define XGMTIME(c) gmtime((c))
+    #define XVALIDATE_DATE(d, f, t) ValidateDate((d), (f), (t))
 #elif defined(USER_TIME)
     /* user time, and gmtime compatible functions, there is a gmtime 
        implementation here that WINCE uses, so really just need some ticks
@@ -237,6 +242,29 @@ struct tm* my_gmtime(const time_t* timer)       /* has a gmtime() but hangs */
 #endif /* THREADX */
 
 
+#ifdef MICROCHIP_TCPIP
+
+/*
+ * time() is just a stub in Microchip libraries. We need our own
+ * implementation. Use SNTP client to get seconds since epoch.
+ */
+time_t pic32_time(time_t* timer)
+{
+    DWORD sec = 0;
+    time_t localTime;
+
+    if (timer == NULL)
+        timer = &localTime;
+
+    sec = SNTPGetUTCSeconds();
+    *timer = (time_t) sec;
+
+    return *timer;
+}
+
+#endif /* MICROCHIP_TCPIP */
+
+
 static INLINE word32 btoi(byte b)
 {
     return b - 0x30;

cyassl/ctaocrypt/settings.h

@@ -45,6 +45,9 @@
 /* Uncomment next line if using Microchip PIC32 ethernet starter kit */
 /* #define MICROCHIP_PIC32 */
 
+/* Uncomment next line if using Microchip TCP/IP stack, for time features */
+/* #define MICROCHIP_TCPIP */
+
 /* Uncomment next line if using FreeRTOS */
 /* #define FREERTOS */
 
@@ -83,7 +86,6 @@
 #ifdef MICROCHIP_PIC32
     #define SIZEOF_LONG_LONG 8
     #define SINGLE_THREADED
-    #define CYASSL_USER_IO
     #define NO_WRITEV
     #define NO_DEV_RANDOM
     #define NO_FILESYSTEM
@@ -91,6 +93,12 @@
     #define TFM_TIMING_RESISTANT
 #endif
 
+#ifdef MICROCHIP_TCPIP
+    /* includes timer functions */
+    #include "TCPIP Stack/TCPIP.h"
+    #define CYASSL_USER_IO
+#endif
+
 #ifdef MBED
     #define SINGLE_THREADED
     #define CYASSL_USER_IO

src/internal.c

@@ -2064,6 +2064,15 @@ ProtocolVersion MakeDTLSv1_2(void)
         return (word32)clk;
     }
 
+
+#elif defined(MICROCHIP_TCPIP)
+
+    word32 LowResTimer(void)
+    {
+        return (word32) TickGet();
+    }
+
+
 #elif defined(USER_TICKS)
 #if 0
     word32 LowResTimer(void)