start ctap protocol

2018-05-02 22:52:41 -04:00
parent ac3e3da68b
commit 3080007b12
7 changed files with 231 additions and 143 deletions
--- a/ctap_device.c
+++ b/ctap_device.c
@@ -0,0 +1,56 @@
+/*
+ *  Device specific functionality defined here
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "cbor.h"
+
+#include "util.h"
+#include "usbhid.h"
+
+
+void ctap_write_block(uint8_t * data)
+{
+    printf("<< "); dump_hex(data, 64);
+    usbhid_send(data);
+}
+
+void ctap_write(void * _data, int len)
+{
+    static uint8_t buf[HID_MESSAGE_SIZE];
+    static int offset = 0;
+
+    uint8_t * data = (uint8_t *) _data;
+
+    if (len == 0)
+    {
+        if (offset > 0)
+        {
+            memset(buf + offset, 0, HID_MESSAGE_SIZE - offset);
+            ctap_write_block(buf);
+        }
+        offset = 0;
+        return;
+    }
+    else if (len == -1)
+    {
+        memset(buf, 0, HID_MESSAGE_SIZE);
+        offset = 0;
+    }
+
+    int i;
+    for (i = 0; i < len; i++)
+    {
+        buf[offset++] = data[i];
+        if (offset == HID_MESSAGE_SIZE)
+        {
+            ctap_write_block(buf);
+            offset = 0;
+        }
+    }
+}
+
+