RfidResearchGroup/proxmark3
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CHG: free the malloc:d memory in the crc8 function.

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CHG: use the new GetEMLfrombigbuff  method.
ADD: added a usage_legic_read
This commit is contained in:
iceman1001 2016-04-10 13:18:11 +02:00
parent ca5bad3d73
commit cbdcc89ae7
1 changed files with 24 additions and 4 deletions
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28
client/cmdhflegic.c
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@ -38,9 +38,20 @@ int usage_legic_load(void){
return 0;
}
int usage_legic_read(void){
PrintAndLog("Read data from a legic tag.");
PrintAndLog("Usage: hf legic read <offset> <num of bytes>");
PrintAndLog("Options :");
PrintAndLog(" <offset> : offset in data array to start download from");
PrintAndLog(" <num of bytes> : number of bytes to download");
PrintAndLog("");
PrintAndLog(" sample: hf legic read");
return 0;
}
/*
* Output BigBuf and deobfuscate LEGIC RF tag data.
* This is based on information given in the talk held
* This is based on information given in the talk held
* by Henryk Ploetz and Karsten Nohl at 26c3
*/
int CmdLegicDecode(const char *Cmd) {
@ -53,11 +64,11 @@ int CmdLegicDecode(const char *Cmd) {
int crc = 0;
int wrp = 0;
int wrc = 0;
uint8_t data_buf[1200]; // receiver buffer, should be 1024..
uint8_t data_buf[1024]; // receiver buffer, should be 1024..
char token_type[4];
// copy data from proxmark into buffer
GetFromBigBuf(data_buf, sizeof(data_buf), 0);
// download EML memory, where the "legic read" command puts the data.
GetEMLFromBigBuf(data_buf, sizeof(data_buf), 0);
if ( !WaitForResponseTimeout(CMD_ACK, NULL, 2000)){
PrintAndLog("Command execute timeout");
return 1;
@ -132,6 +143,8 @@ int CmdLegicDecode(const char *Cmd) {
print_hex_break( data_buf, 33, 16);
return 0;
PrintAndLog("\nADF: User Area");
PrintAndLog("------------------------------------------------------");
i = 22;
@ -236,6 +249,13 @@ int CmdLegicDecode(const char *Cmd) {
}
int CmdLegicRFRead(const char *Cmd) {
// params:
// offset in data
// number of bytes.
char cmdp = param_getchar(Cmd, 0);
if ( cmdp == 'H' || cmdp == 'h' ) return usage_legic_read();
int byte_count=0, offset=0;
sscanf(Cmd, "%i %i", &offset, &byte_count);
if(byte_count == 0) byte_count = -1;