mirror of
https://github.com/RfidResearchGroup/proxmark3.git
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82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
/*
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* Proxmark send and receive commands
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*
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* Copyright (c) 2012, Roel Verdult
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holders nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @file cmd.c
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* @brief
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*/
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#include "cmd.h"
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#include "string.h"
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#include "proxmark3.h"
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//static UsbCommand txcmd;
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bool cmd_receive(UsbCommand* cmd) {
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// Check if there is a usb packet available
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if (!usb_poll()) return false;
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// Try to retrieve the available command frame
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size_t rxlen = usb_read((byte_t*)cmd,sizeof(UsbCommand));
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// Check if the transfer was complete
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if (rxlen != sizeof(UsbCommand)) return false;
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// Received command successfully
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return true;
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}
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bool cmd_send(uint32_t cmd, uint32_t arg0, uint32_t arg1, uint32_t arg2, void* data, size_t len) {
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UsbCommand txcmd;
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for (size_t i=0; i<sizeof(UsbCommand); i++) {
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((byte_t*)&txcmd)[i] = 0x00;
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}
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// Compose the outgoing command frame
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txcmd.cmd = cmd;
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txcmd.arg[0] = arg0;
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txcmd.arg[1] = arg1;
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txcmd.arg[2] = arg2;
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// Add the (optional) content to the frame, with a maximum size of USB_CMD_DATA_SIZE
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if (data && len) {
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len = MIN(len,USB_CMD_DATA_SIZE);
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for (size_t i=0; i<len; i++) {
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txcmd.d.asBytes[i] = ((byte_t*)data)[i];
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}
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}
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// Send frame and make sure all bytes are transmitted
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if (usb_write((byte_t*)&txcmd,sizeof(UsbCommand)) != 0) return false;
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return true;
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}
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