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a553f267 1//-----------------------------------------------------------------------------
2// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
3//
4// This code is licensed to you under the terms of the GNU GPL, version 2 or,
5// at your option, any later version. See the LICENSE.txt file for the text of
6// the license.
7//-----------------------------------------------------------------------------
8// Main command parser entry point
9//-----------------------------------------------------------------------------
10
7fe9b0b7 11#include <stdio.h>
12#include <stdlib.h>
13#include <unistd.h>
14#include <string.h>
91c38cf7 15#include "sleep.h"
7fe9b0b7 16#include "cmdparser.h"
902cb3c0 17#include "proxmark3.h"
7fe9b0b7 18#include "data.h"
19#include "usb_cmd.h"
20#include "ui.h"
21#include "cmdhf.h"
22#include "cmddata.h"
23#include "cmdhw.h"
24#include "cmdlf.h"
25#include "cmdmain.h"
9440213d 26#include "util.h"
1d59cd8d 27#include "cmdscript.h"
7fe9b0b7 28
e772353f 29
7fe9b0b7 30unsigned int current_command = CMD_UNKNOWN;
fd368d18 31//unsigned int received_command = CMD_UNKNOWN;
32//UsbCommand current_response;
33//UsbCommand current_response_user;
7fe9b0b7 34
35static int CmdHelp(const char *Cmd);
36static int CmdQuit(const char *Cmd);
37
fd368d18 38//For storing command that are received from the device
39#define CMD_BUFFER_SIZE 50
40static UsbCommand cmdBuffer[CMD_BUFFER_SIZE];
41//Points to the next empty position to write to
42static int cmd_head;//Starts as 0
43//Points to the position of the last unread command
44static int cmd_tail;//Starts as 0
45
7fe9b0b7 46static command_t CommandTable[] =
47{
57c69556 48 {"help", CmdHelp, 1, "This help. Use '<command> help' for details of a particular command."},
37239a7c 49 {"data", CmdData, 1, "{ Plot window / data buffer manipulation... }"},
37239a7c 50 {"hf", CmdHF, 1, "{ HF commands... }"},
51 {"hw", CmdHW, 1, "{ Hardware commands... }"},
52 {"lf", CmdLF, 1, "{ LF commands... }"},
57c69556
MHS
53 {"script", CmdScript, 1,"{ Scripting commands }"},
54 {"quit", CmdQuit, 1, "Exit program"},
55 {"exit", CmdQuit, 1, "Exit program"},
7fe9b0b7 56 {NULL, NULL, 0, NULL}
57};
58
57c69556
MHS
59command_t* getTopLevelCommandTable()
60{
61 return CommandTable;
62}
7fe9b0b7 63int CmdHelp(const char *Cmd)
64{
65 CmdsHelp(CommandTable);
66 return 0;
67}
68
69int CmdQuit(const char *Cmd)
70{
71 exit(0);
72 return 0;
73}
42daa759 74/**
75 * @brief This method should be called when sending a new command to the pm3. In case any old
76 * responses from previous commands are stored in the buffer, a call to this method should clear them.
77 * A better method could have been to have explicit command-ACKS, so we can know which ACK goes to which
78 * operation. Right now we'll just have to live with this.
79 */
80void clearCommandBuffer()
81{
82 //This is a very simple operation
83 cmd_tail = cmd_head;
84}
85
86/**
87 * @brief storeCommand stores a USB command in a circular buffer
88 * @param UC
89 */
90void storeCommand(UsbCommand *command)
91{
92 if( ( cmd_head+1) % CMD_BUFFER_SIZE == cmd_tail)
93 {
94 //If these two are equal, we're about to overwrite in the
95 // circular buffer.
96 PrintAndLog("WARNING: Command buffer about to overwrite command! This needs to be fixed!");
97 }
98 //Store the command at the 'head' location
99 UsbCommand* destination = &cmdBuffer[cmd_head];
100 memcpy(destination, command, sizeof(UsbCommand));
101
102 cmd_head = (cmd_head +1) % CMD_BUFFER_SIZE; //increment head and wrap
103
104}
105/**
106 * @brief getCommand gets a command from an internal circular buffer.
107 * @param response location to write command
108 * @return 1 if response was returned, 0 if nothing has been received
109 */
110int getCommand(UsbCommand* response)
111{
112 //If head == tail, there's nothing to read, or if we just got initialized
113 if(cmd_head == cmd_tail){
114 return 0;
115 }
116 //Pick out the next unread command
117 UsbCommand* last_unread = &cmdBuffer[cmd_tail];
118 memcpy(response, last_unread, sizeof(UsbCommand));
119 //Increment tail - this is a circular buffer, so modulo buffer size
120 cmd_tail = (cmd_tail +1 ) % CMD_BUFFER_SIZE;
121
122 return 1;
123
124}
125
fd368d18 126/**
127 * Waits for a certain response type. This method waits for a maximum of
128 * ms_timeout milliseconds for a specified response command.
129 *@brief WaitForResponseTimeout
130 * @param cmd command to wait for
131 * @param response struct to copy received command into.
132 * @param ms_timeout
133 * @return true if command was returned, otherwise false
134 */
902cb3c0 135bool WaitForResponseTimeout(uint32_t cmd, UsbCommand* response, size_t ms_timeout) {
fd368d18 136
90e278d3
MHS
137 UsbCommand resp;
138
fd368d18 139 if (response == NULL) {
fd368d18 140 response = &resp;
902cb3c0 141 }
534983d7 142
fd368d18 143 // Wait until the command is received
144 for(size_t dm_seconds=0; dm_seconds < ms_timeout/10; dm_seconds++) {
145
146 while(getCommand(response))
147 {
148 if(response->cmd == cmd){
149 //We got what we expected
150 return true;
151 }
534983d7 152
fd368d18 153 }
154 msleep(10); // XXX ugh
155 if (dm_seconds == 200) { // Two seconds elapsed
156 PrintAndLog("Waiting for a response from the proxmark...");
157 PrintAndLog("Don't forget to cancel its operation first by pressing on the button");
158 }
159 }
160 return false;
534983d7 161}
162
902cb3c0 163bool WaitForResponse(uint32_t cmd, UsbCommand* response) {
164 return WaitForResponseTimeout(cmd,response,-1);
7fe9b0b7 165}
166
167//-----------------------------------------------------------------------------
168// Entry point into our code: called whenever the user types a command and
169// then presses Enter, which the full command line that they typed.
170//-----------------------------------------------------------------------------
902cb3c0 171void CommandReceived(char *Cmd) {
7fe9b0b7 172 CmdsParse(CommandTable, Cmd);
173}
174
175//-----------------------------------------------------------------------------
176// Entry point into our code: called whenever we received a packet over USB
177// that we weren't necessarily expecting, for example a debug print.
178//-----------------------------------------------------------------------------
179void UsbCommandReceived(UsbCommand *UC)
180{
79a73ab2 181 /*
9440213d 182 // Debug
79a73ab2 183 printf("UsbCommand length[len=%zd]\n",sizeof(UsbCommand));
125a98a1 184 printf(" cmd[len=%zd]: %"llx"\n",sizeof(UC->cmd),UC->cmd);
185 printf(" arg0[len=%zd]: %"llx"\n",sizeof(UC->arg[0]),UC->arg[0]);
186 printf(" arg1[len=%zd]: %"llx"\n",sizeof(UC->arg[1]),UC->arg[1]);
187 printf(" arg2[len=%zd]: %"llx"\n",sizeof(UC->arg[2]),UC->arg[2]);
79a73ab2 188 printf(" data[len=%zd]: %02x%02x%02x...\n",sizeof(UC->d.asBytes),UC->d.asBytes[0],UC->d.asBytes[1],UC->d.asBytes[2]);
189 */
9440213d 190
7fe9b0b7 191 // printf("%s(%x) current cmd = %x\n", __FUNCTION__, c->cmd, current_command);
9440213d 192 // If we recognize a response, return to avoid further processing
7fe9b0b7 193 switch(UC->cmd) {
9440213d 194 // First check if we are handling a debug message
7fe9b0b7 195 case CMD_DEBUG_PRINT_STRING: {
9440213d 196 char s[USB_CMD_DATA_SIZE+1];
197 size_t len = MIN(UC->arg[0],USB_CMD_DATA_SIZE);
198 memcpy(s,UC->d.asBytes,len);
199 s[len] = 0x00;
ab8b654e 200 PrintAndLog("#db# %s ", s);
7fe9b0b7 201 return;
db09cb3a 202 } break;
7fe9b0b7 203
db09cb3a 204 case CMD_DEBUG_PRINT_INTEGERS: {
ab8b654e 205 PrintAndLog("#db# %08x, %08x, %08x \r\n", UC->arg[0], UC->arg[1], UC->arg[2]);
7fe9b0b7 206 return;
db09cb3a 207 } break;
7fe9b0b7 208
2bdd68c3 209 // case CMD_MEASURED_ANTENNA_TUNING: {
210 // int peakv, peakf;
211 // int vLf125, vLf134, vHf;
212 // vLf125 = UC->arg[0] & 0xffff;
213 // vLf134 = UC->arg[0] >> 16;
214 // vHf = UC->arg[1] & 0xffff;;
215 // peakf = UC->arg[2] & 0xffff;
216 // peakv = UC->arg[2] >> 16;
217 // PrintAndLog("");
218 // PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0);
219 // PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
220 // PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
221 // PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
222 // if (peakv<2000)
223 // PrintAndLog("# Your LF antenna is unusable.");
224 // else if (peakv<10000)
225 // PrintAndLog("# Your LF antenna is marginal.");
226 // if (vHf<2000)
227 // PrintAndLog("# Your HF antenna is unusable.");
228 // else if (vHf<5000)
229 // PrintAndLog("# Your HF antenna is marginal.");
230 // } break;
db09cb3a 231
902cb3c0 232 case CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K: {
233// printf("received samples: ");
234// print_hex(UC->d.asBytes,512);
235 sample_buf_len += UC->arg[1];
236// printf("samples: %zd offset: %d\n",sample_buf_len,UC->arg[0]);
237 memcpy(sample_buf+(UC->arg[0]),UC->d.asBytes,UC->arg[1]);
238 } break;
239
240
241// case CMD_ACK: {
242// PrintAndLog("Receive ACK\n");
243// } break;
244
db09cb3a 245 default: {
246 // Maybe it's a response
fd368d18 247 /*
db09cb3a 248 switch(current_command) {
249 case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K: {
250 if (UC->cmd != CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K) {
251 PrintAndLog("unrecognized command %08x\n", UC->cmd);
252 break;
253 }
902cb3c0 254// int i;
255 PrintAndLog("received samples %d\n",UC->arg[0]);
256 memcpy(sample_buf+UC->arg[0],UC->d.asBytes,48);
257 sample_buf_len += 48;
258// for(i=0; i<48; i++) sample_buf[i] = UC->d.asBytes[i];
fd368d18 259 //received_command = UC->cmd;
db09cb3a 260 } break;
261
262 default: {
263 } break;
fd368d18 264 }*/
265 }
266 break;
7fe9b0b7 267 }
fd368d18 268
269 storeCommand(UC);
270
271}
272
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