Fixed the write raw 14a, now finally functional... at least let's hope so

[proxmark3-svn] / client / cmdmain.c

diff --git a/client/cmdmain.c b/client/cmdmain.c
index 85a0e0ca2d7820f56e3d7d9b383ffa4d15fe5d6f..59ab8bf5f81d3151cfc36956dd273c9922b57b48 100644 (file)
--- a/client/cmdmain.c
+++ b/client/cmdmain.c
@@ -24,6 +24,8 @@
 #include "cmdlf.h"
 #include "cmdmain.h"
 #include "util.h"
+#include "cmdscript.h"
+
 
 unsigned int current_command = CMD_UNKNOWN;
 //unsigned int received_command = CMD_UNKNOWN;
@@ -39,7 +41,7 @@ static UsbCommand cmdBuffer[CMD_BUFFER_SIZE];
 //Points to the next empty position to write to
 static int cmd_head;//Starts as 0
 //Points to the position of the last unread command
-static int cmd_tail = -1;//Starts as -1
+static int cmd_tail;//Starts as 0
 
 static command_t CommandTable[] = 
 {
@@ -50,6 +52,7 @@ static command_t CommandTable[] =
   {"hw",    CmdHW,    1, "{ Hardware commands... }"},
   {"lf",    CmdLF,    1, "{ LF commands... }"},
   {"quit",  CmdQuit,  1, "Quit program"},
+  {"script", CmdScript,   1,"Run script"},
   {NULL, NULL, 0, NULL}
 };
 
@@ -64,6 +67,58 @@ int CmdQuit(const char *Cmd)
   exit(0);
   return 0;
 }
+/**
+ * @brief This method should be called when sending a new command to the pm3. In case any old
+ *  responses from previous commands are stored in the buffer, a call to this method should clear them.
+ *  A better method could have been to have explicit command-ACKS, so we can know which ACK goes to which
+ *  operation. Right now we'll just have to live with this.
+ */
+void clearCommandBuffer()
+{
+    //This is a very simple operation
+    cmd_tail = cmd_head;
+}
+
+/**
+ * @brief storeCommand stores a USB command in a circular buffer
+ * @param UC
+ */
+void storeCommand(UsbCommand *command)
+{
+    if( ( cmd_head+1) % CMD_BUFFER_SIZE == cmd_tail)
+    {
+        //If these two are equal, we're about to overwrite in the
+        // circular buffer.
+        PrintAndLog("WARNING: Command buffer about to overwrite command! This needs to be fixed!");
+    }
+    //Store the command at the 'head' location
+    UsbCommand* destination = &cmdBuffer[cmd_head];
+    memcpy(destination, command, sizeof(UsbCommand));
+
+    cmd_head = (cmd_head +1) % CMD_BUFFER_SIZE; //increment head and wrap
+
+}
+/**
+ * @brief getCommand gets a command from an internal circular buffer.
+ * @param response location to write command
+ * @return 1 if response was returned, 0 if nothing has been received
+ */
+int getCommand(UsbCommand* response)
+{
+    //If head == tail, there's nothing to read, or if we just got initialized
+    if(cmd_head == cmd_tail){
+        return 0;
+    }
+    //Pick out the next unread command
+    UsbCommand* last_unread = &cmdBuffer[cmd_tail];
+    memcpy(response, last_unread, sizeof(UsbCommand));
+    //Increment tail - this is a circular buffer, so modulo buffer size
+    cmd_tail = (cmd_tail +1 ) % CMD_BUFFER_SIZE;
+
+    return 1;
+
+}
+
 /**
  * Waits for a certain response type. This method waits for a maximum of
  * ms_timeout milliseconds for a specified response command.
@@ -83,9 +138,13 @@ bool WaitForResponseTimeout(uint32_t cmd, UsbCommand* response, size_t ms_timeou
   // Wait until the command is received
   for(size_t dm_seconds=0; dm_seconds < ms_timeout/10; dm_seconds++) {
 
-      if(getCommand(response) && response->cmd == cmd){
+      while(getCommand(response))
+      {
+          if(response->cmd == cmd){
           //We got what we expected
           return true;
+          }
+
       }
         msleep(10); // XXX ugh
         if (dm_seconds == 200) { // Two seconds elapsed
@@ -205,55 +264,4 @@ void UsbCommandReceived(UsbCommand *UC)
   storeCommand(UC);
 
 }
-/**
- * @brief storeCommand stores a USB command in a circular buffer
- * @param UC
- */
-void storeCommand(UsbCommand *command)
-{
-    if(cmd_head == cmd_tail)
-    {
-        //If these two are equal, we're about to overwrite in the
-        // circular buffer.
-        PrintAndLog("WARNING: Command buffer about to overwrite command! This needs to be fixed!");
-    }
-    //Store the command at the 'head' location
-    UsbCommand* destination = &cmdBuffer[cmd_head];
-    memcpy(destination, command, sizeof(UsbCommand));
-
-    //Also, if cmd_tail is still -1 because the buffer was
-    // previously empty, set it to head
-    if(cmd_tail < 0) {
-        cmd_tail = cmd_head;
-    }
 
-    cmd_head++; //increment head
-    cmd_head %= CMD_BUFFER_SIZE;//wrap around
-
-}
-/**
- * @brief getCommand gets a command from an internal circular buffer.
- * @param response location to write command
- * @return 1 if response was returned, 0 if nothing has been received
- */
-int getCommand(UsbCommand* response)
-{
-    //If head == tail, there's nothing to read, or if we just got initialized
-    if(cmd_head == cmd_tail || cmd_tail == -1){
-        return 0;
-    }
-    //Pick out the next unread command
-    UsbCommand* last_unread = &cmdBuffer[cmd_tail];
-    memcpy(response, last_unread, sizeof(UsbCommand));
-    //Increment tail - this is a circular buffer, so modulo buffer size
-    cmd_tail = (cmd_tail +1 ) % CMD_BUFFER_SIZE;
-    //In order to detect when the buffer overwrites itself, we set the
-    // tail to -1 whenever it 'catches up' with head : this means the buffer is empty.
-    // Otherwise, head==tail could mean both: either empty or full.
-    if(cmd_tail == cmd_head){
-        cmd_tail = -1 ;
-    }
-
-    return 1;
-
-}