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roel@libnfc.org 2012-12-04 23:41:54 +00:00
parent 902cb3c00b
commit 5bcc76c427
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armsrc/cmd.c Normal file
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/*
* Proxmark send and receive commands
*
* Copyright (c) 2010, Roel Verdult
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @file cmd.c
* @brief
*/
#include "cmd.h"
#include "string.h"
#include "util.h"
#include "proxmark3.h"
//static UsbCommand txcmd;
bool cmd_receive(UsbCommand* cmd) {
// Check if there is a usb packet available
if (!usb_poll()) return false;
// Try to retrieve the available command frame
size_t rxlen = usb_read((byte_t*)cmd,sizeof(UsbCommand));
// Check if the transfer was complete
if (rxlen != sizeof(UsbCommand)) return false;
// Received command successfully
return true;
}
bool cmd_send(uint32_t cmd, uint32_t arg0, uint32_t arg1, uint32_t arg2, byte_t* data, size_t len) {
UsbCommand txcmd;
// Compose the outgoing command frame
txcmd.cmd = cmd;
txcmd.arg[0] = arg0;
txcmd.arg[1] = arg1;
txcmd.arg[2] = arg2;
// Add the (optional) content to the frame, with a maximum size of USB_CMD_DATA_SIZE
if (data && len) {
memcpy(txcmd.d.asBytes,data,MIN(len,USB_CMD_DATA_SIZE));
}
// Send frame and make sure all bytes are transmitted
if (usb_write((byte_t*)&txcmd,sizeof(UsbCommand)) != 0) return false;
return true;
}