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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" |
fe81b478 | 28 | #include "cmdcrc.h" |
7fe9b0b7 | 29 | |
e772353f | 30 | |
7fe9b0b7 | 31 | unsigned int current_command = CMD_UNKNOWN; |
7fe9b0b7 | 32 | |
33 | static int CmdHelp(const char *Cmd); | |
34 | static int CmdQuit(const char *Cmd); | |
f46c3663 | 35 | static int CmdRev(const char *Cmd); |
2e163546 | 36 | // for testing reveng api - cmdcrc.c |
53ee28cb | 37 | /* |
7e599947 | 38 | static int CmdrevengT(const char *Cmd); |
37f4270a | 39 | static int CmdrevengC(const char *Cmd); |
d2219cae | 40 | static int CmdrevengA(const char *Cmd); |
53ee28cb | 41 | */ |
fd368d18 | 42 | //For storing command that are received from the device |
fd368d18 | 43 | static UsbCommand cmdBuffer[CMD_BUFFER_SIZE]; |
44 | //Points to the next empty position to write to | |
45 | static int cmd_head;//Starts as 0 | |
46 | //Points to the position of the last unread command | |
47 | static int cmd_tail;//Starts as 0 | |
48 | ||
7fe9b0b7 | 49 | static command_t CommandTable[] = |
50 | { | |
57c69556 | 51 | {"help", CmdHelp, 1, "This help. Use '<command> help' for details of a particular command."}, |
37239a7c | 52 | {"data", CmdData, 1, "{ Plot window / data buffer manipulation... }"}, |
fe81b478 | 53 | {"hf", CmdHF, 1, "{ High Frequency commands... }"}, |
37239a7c | 54 | {"hw", CmdHW, 1, "{ Hardware commands... }"}, |
fe81b478 | 55 | {"lf", CmdLF, 1, "{ Low Frequency commands... }"}, |
f46c3663 | 56 | {"reveng",CmdRev, 1, "Crc calculations from the software reveng1-30"}, |
d2219cae | 57 | /* // for testing reveng api - cmdcrc.c |
58 | {"revenga",CmdrevengA,1, "TEST Crc calculations from the software reveng1-30"}, | |
59 | {"revengt",CmdrevengT,1, "TEST Crc calculations from the software reveng1-30"}, | |
60 | {"revengc",CmdrevengC,1, "TEST Crc calculations from the software reveng1-30"}, | |
61 | */ | |
f46c3663 | 62 | {"script",CmdScript,1, "{ Scripting commands }"}, |
57c69556 MHS |
63 | {"quit", CmdQuit, 1, "Exit program"}, |
64 | {"exit", CmdQuit, 1, "Exit program"}, | |
7fe9b0b7 | 65 | {NULL, NULL, 0, NULL} |
66 | }; | |
67 | ||
57c69556 MHS |
68 | command_t* getTopLevelCommandTable() |
69 | { | |
70 | return CommandTable; | |
71 | } | |
7fe9b0b7 | 72 | int CmdHelp(const char *Cmd) |
73 | { | |
74 | CmdsHelp(CommandTable); | |
75 | return 0; | |
76 | } | |
77 | ||
78 | int CmdQuit(const char *Cmd) | |
79 | { | |
80 | exit(0); | |
81 | return 0; | |
82 | } | |
f46c3663 | 83 | |
84 | int CmdRev(const char *Cmd) | |
85 | { | |
86 | CmdCrc(Cmd); | |
87 | return 0; | |
88 | } | |
d2219cae | 89 | |
90 | /* // for testing reveng api - cmdcrc.c | |
91 | int CmdrevengA(const char *Cmd) | |
92 | { | |
93 | return CmdrevengSearch(Cmd); | |
94 | } | |
7e599947 | 95 | int CmdrevengT(const char *Cmd) |
96 | { | |
97 | return CmdrevengTest(Cmd); | |
98 | } | |
37f4270a | 99 | int CmdrevengC(const char *Cmd) |
100 | { | |
101 | return CmdrevengTestC(Cmd); | |
53ee28cb | 102 | }*/ |
2e163546 | 103 | |
42daa759 | 104 | /** |
105 | * @brief This method should be called when sending a new command to the pm3. In case any old | |
106 | * responses from previous commands are stored in the buffer, a call to this method should clear them. | |
107 | * A better method could have been to have explicit command-ACKS, so we can know which ACK goes to which | |
108 | * operation. Right now we'll just have to live with this. | |
109 | */ | |
110 | void clearCommandBuffer() | |
111 | { | |
112 | //This is a very simple operation | |
113 | cmd_tail = cmd_head; | |
114 | } | |
115 | ||
116 | /** | |
117 | * @brief storeCommand stores a USB command in a circular buffer | |
118 | * @param UC | |
119 | */ | |
120 | void storeCommand(UsbCommand *command) | |
121 | { | |
122 | if( ( cmd_head+1) % CMD_BUFFER_SIZE == cmd_tail) | |
123 | { | |
124 | //If these two are equal, we're about to overwrite in the | |
125 | // circular buffer. | |
126 | PrintAndLog("WARNING: Command buffer about to overwrite command! This needs to be fixed!"); | |
127 | } | |
128 | //Store the command at the 'head' location | |
129 | UsbCommand* destination = &cmdBuffer[cmd_head]; | |
130 | memcpy(destination, command, sizeof(UsbCommand)); | |
131 | ||
132 | cmd_head = (cmd_head +1) % CMD_BUFFER_SIZE; //increment head and wrap | |
133 | ||
134 | } | |
135 | /** | |
136 | * @brief getCommand gets a command from an internal circular buffer. | |
137 | * @param response location to write command | |
138 | * @return 1 if response was returned, 0 if nothing has been received | |
139 | */ | |
140 | int getCommand(UsbCommand* response) | |
141 | { | |
142 | //If head == tail, there's nothing to read, or if we just got initialized | |
143 | if(cmd_head == cmd_tail){ | |
144 | return 0; | |
145 | } | |
146 | //Pick out the next unread command | |
147 | UsbCommand* last_unread = &cmdBuffer[cmd_tail]; | |
148 | memcpy(response, last_unread, sizeof(UsbCommand)); | |
149 | //Increment tail - this is a circular buffer, so modulo buffer size | |
150 | cmd_tail = (cmd_tail +1 ) % CMD_BUFFER_SIZE; | |
151 | ||
152 | return 1; | |
153 | ||
154 | } | |
155 | ||
fd368d18 | 156 | /** |
157 | * Waits for a certain response type. This method waits for a maximum of | |
158 | * ms_timeout milliseconds for a specified response command. | |
159 | *@brief WaitForResponseTimeout | |
160 | * @param cmd command to wait for | |
161 | * @param response struct to copy received command into. | |
162 | * @param ms_timeout | |
163 | * @return true if command was returned, otherwise false | |
164 | */ | |
902cb3c0 | 165 | bool WaitForResponseTimeout(uint32_t cmd, UsbCommand* response, size_t ms_timeout) { |
fd368d18 | 166 | |
90e278d3 | 167 | UsbCommand resp; |
b915fda3 | 168 | |
9484ff3d | 169 | if (response == NULL) |
fd368d18 | 170 | response = &resp; |
9484ff3d | 171 | |
b915fda3 | 172 | |
fd368d18 | 173 | // Wait until the command is received |
174 | for(size_t dm_seconds=0; dm_seconds < ms_timeout/10; dm_seconds++) { | |
175 | ||
9484ff3d | 176 | while(getCommand(response)) { |
fd368d18 | 177 | if(response->cmd == cmd){ |
fd368d18 | 178 | return true; |
179 | } | |
fd368d18 | 180 | } |
181 | msleep(10); // XXX ugh | |
182 | if (dm_seconds == 200) { // Two seconds elapsed | |
183 | PrintAndLog("Waiting for a response from the proxmark..."); | |
184 | PrintAndLog("Don't forget to cancel its operation first by pressing on the button"); | |
185 | } | |
186 | } | |
187 | return false; | |
534983d7 | 188 | } |
189 | ||
902cb3c0 | 190 | bool WaitForResponse(uint32_t cmd, UsbCommand* response) { |
191 | return WaitForResponseTimeout(cmd,response,-1); | |
7fe9b0b7 | 192 | } |
193 | ||
194 | //----------------------------------------------------------------------------- | |
195 | // Entry point into our code: called whenever the user types a command and | |
196 | // then presses Enter, which the full command line that they typed. | |
197 | //----------------------------------------------------------------------------- | |
902cb3c0 | 198 | void CommandReceived(char *Cmd) { |
7fe9b0b7 | 199 | CmdsParse(CommandTable, Cmd); |
200 | } | |
201 | ||
202 | //----------------------------------------------------------------------------- | |
203 | // Entry point into our code: called whenever we received a packet over USB | |
204 | // that we weren't necessarily expecting, for example a debug print. | |
205 | //----------------------------------------------------------------------------- | |
206 | void UsbCommandReceived(UsbCommand *UC) | |
207 | { | |
9484ff3d | 208 | switch(UC->cmd) { |
209 | // First check if we are handling a debug message | |
210 | case CMD_DEBUG_PRINT_STRING: { | |
211 | char s[USB_CMD_DATA_SIZE+1] = {0x00}; | |
212 | size_t len = MIN(UC->arg[0],USB_CMD_DATA_SIZE); | |
213 | memcpy(s,UC->d.asBytes,len); | |
214 | PrintAndLog("#db# %s ", s); | |
215 | return; | |
216 | } break; | |
217 | ||
218 | case CMD_DEBUG_PRINT_INTEGERS: { | |
219 | PrintAndLog("#db# %08x, %08x, %08x \r\n", UC->arg[0], UC->arg[1], UC->arg[2]); | |
220 | return; | |
221 | } break; | |
222 | ||
223 | case CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K: { | |
9484ff3d | 224 | memcpy(sample_buf+(UC->arg[0]),UC->d.asBytes,UC->arg[1]); |
225 | } break; | |
902cb3c0 | 226 | |
3fe4ff4f | 227 | default: |
9484ff3d | 228 | break; |
229 | } | |
fd368d18 | 230 | |
9484ff3d | 231 | storeCommand(UC); |
fd368d18 | 232 | } |
233 |