//-----------------------------------------------------------------------------
// Low frequency commands
//-----------------------------------------------------------------------------
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <limits.h>
-#include "proxmark3.h"
-#include "data.h"
-#include "graph.h"
-#include "ui.h"
-#include "cmdparser.h"
-#include "cmdmain.h"
-#include "cmddata.h"
-#include "util.h"
#include "cmdlf.h"
-#include "cmdlfhid.h"
-#include "cmdlfawid.h"
-#include "cmdlfti.h"
-#include "cmdlfem4x.h"
-#include "cmdlfhitag.h"
-#include "cmdlft55xx.h"
-#include "cmdlfpcf7931.h"
-#include "cmdlfio.h"
-#include "lfdemod.h"
-#include "cmdlfviking.h"
-#include "cmdlfpresco.h"
-#include "cmdlfpyramid.h"
static int CmdHelp(const char *Cmd);
int usage_lf_cmdread(void) {
PrintAndLog("Usage: lf cmdread d <delay period> z <zero period> o <one period> c <cmdbytes> [H]");
- PrintAndLog("Options: ");
+ PrintAndLog("Options:");
PrintAndLog(" h This help");
PrintAndLog(" L Low frequency (125 KHz)");
PrintAndLog(" H High frequency (134 KHz)");
- PrintAndLog(" d <delay> delay OFF period, (dec)");
- PrintAndLog(" z <zero> time period ZERO, (dec)");
- PrintAndLog(" o <one> time period ONE, (dec)");
- PrintAndLog(" c <cmd> Command bytes");
+ PrintAndLog(" d <delay> delay OFF period, (decimal)");
+ PrintAndLog(" z <zero> time period ZERO, (decimal)");
+ PrintAndLog(" o <one> time period ONE, (decimal)");
+ PrintAndLog(" c <cmd> Command bytes (in ones and zeros)");
PrintAndLog(" ************* All periods in microseconds (ms)");
PrintAndLog("Examples:");
PrintAndLog(" lf cmdread d 80 z 100 o 200 c 11000");
}
int usage_lf_read(void){
PrintAndLog("Usage: lf read [h] [s]");
- PrintAndLog("Options: ");
+ PrintAndLog("Options:");
PrintAndLog(" h This help");
PrintAndLog(" s silent run no printout");
PrintAndLog("This function takes no arguments. ");
}
int usage_lf_snoop(void) {
PrintAndLog("Usage: lf snoop");
- PrintAndLog("Options: ");
+ PrintAndLog("Options:");
PrintAndLog(" h This help");
PrintAndLog("This function takes no arguments. ");
PrintAndLog("Use 'lf config' to set parameters.");
return 0;
}
int usage_lf_config(void) {
- PrintAndLog("Usage: lf config [H|<divisor>] [b <bps>] [d <decim>] [a 0|1]");
- PrintAndLog("Options: ");
+ PrintAndLog("Usage: lf config [
h] [H|<divisor>] [b <bps>] [d <decim>] [a 0|1]");
+ PrintAndLog("Options:");
PrintAndLog(" h This help");
PrintAndLog(" L Low frequency (125 KHz)");
PrintAndLog(" H High frequency (134 KHz)");
}
int usage_lf_simfsk(void) {
PrintAndLog("Usage: lf simfsk [c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>]");
- PrintAndLog("Options: ");
+ PrintAndLog("Options:");
PrintAndLog(" h This help");
PrintAndLog(" c <clock> Manually set clock - can autodetect if using DemodBuffer");
PrintAndLog(" i invert data");
}
int usage_lf_simask(void) {
PrintAndLog("Usage: lf simask [c <clock>] [i] [b|m|r] [s] [d <raw hex to sim>]");
- PrintAndLog("Options: ");
+ PrintAndLog("Options:");
PrintAndLog(" h This help");
PrintAndLog(" c <clock> Manually set clock - can autodetect if using DemodBuffer");
PrintAndLog(" i invert data");
PrintAndLog(" b sim ask/biphase");
PrintAndLog(" m sim ask/manchester - Default");
PrintAndLog(" r sim ask/raw");
- PrintAndLog(" s TBD- -to enable a gap between playback repetitions - default: no gap");
+ PrintAndLog(" s add t55xx Sequence Terminator gap - default: no gaps (only manchester)");
PrintAndLog(" d <hexdata> Data to sim as hex - omit to sim from DemodBuffer");
return 0;
}
int usage_lf_simpsk(void) {
PrintAndLog("Usage: lf simpsk [1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>]");
- PrintAndLog("Options: ");
+ PrintAndLog("Options:");
PrintAndLog(" h This help");
PrintAndLog(" c <clock> Manually set clock - can autodetect if using DemodBuffer");
PrintAndLog(" i invert data");
return 0;
}
int usage_lf_find(void){
- PrintAndLog("Usage: lf search <0|1> [u]");
- PrintAndLog(" <use data from Graphbuffer> , if not set, try reading data from tag.");
- PrintAndLog(" [Search for Unknown tags] , if not set, reads only known tags.");
+ PrintAndLog("Usage: lf search [h] <0|1> [u]");
PrintAndLog("");
- PrintAndLog(" sample: lf search = try reading data from tag & search for known tags");
- PrintAndLog(" : lf search 1 = use data from GraphBuffer & search for known tags");
- PrintAndLog(" : lf search u = try reading data from tag & search for known and unknown tags");
- PrintAndLog(" : lf search 1 u = use data from GraphBuffer & search for known and unknown tags");
+ PrintAndLog("Options:");
+ PrintAndLog(" h This help");
+ PrintAndLog(" <0|1> Use data from Graphbuffer, if not set, try reading data from tag.");
+ PrintAndLog(" u Search for Unknown tags, if not set, reads only known tags.");
+ PrintAndLog("Examples:");
+ PrintAndLog(" lf search = try reading data from tag & search for known tags");
+ PrintAndLog(" lf search 1 = use data from GraphBuffer & search for known tags");
+ PrintAndLog(" lf search u = try reading data from tag & search for known and unknown tags");
+ PrintAndLog(" lf search 1 u = use data from GraphBuffer & search for known and unknown tags");
return 0;
}
/* send a LF command before reading */
-int CmdLFCommandRead(const char *Cmd)
-{
- static char dummy[3] = {0x20,0x00,0x00};
- UsbCommand c = {CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K};
- bool errors = FALSE;
+int CmdLFCommandRead(const char *Cmd) {
+ bool errors = FALSE;
+ bool useHighFreq = FALSE;
+ uint16_t one = 0, zero = 0;
uint8_t cmdp = 0;
- int strLength = 0;
-
+ UsbCommand c = {CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K, {0,0,0}};
+
while(param_getchar(Cmd, cmdp) != 0x00) {
- switch(param_getchar(Cmd, cmdp))
- {
+ switch(param_getchar(Cmd, cmdp)) {
case 'h':
return usage_lf_cmdread();
case 'H':
- dummy[1]='h';
+ useHighFreq = TRUE;
cmdp++;
break;
case 'L':
cmdp++;
break;
case 'c':
- strLength = param_getstr(Cmd, cmdp+1, (char *)&c.d.asBytes);
+ param_getstr(Cmd, cmdp+1, (char *)&c.d.asBytes);
cmdp+=2;
break;
case 'd':
cmdp+=2;
break;
case 'z':
- c.arg[1] = param_get32ex(Cmd, cmdp+1, 0, 10);
+ zero = param_get32ex(Cmd, cmdp+1, 0, 10) & 0xFFFF;
cmdp+=2;
break;
case 'o':
- c.arg[2] = param_get32ex(Cmd, cmdp+1, 0, 10);
+ one = param_get32ex(Cmd, cmdp+1, 0, 10) & 0xFFFF;
cmdp+=2;
break;
default:
if(errors) break;
}
// No args
- if (cmdp == 0) errors = 1;
+ if (cmdp == 0) errors = TRUE;
//Validations
if (errors) return usage_lf_cmdread();
- // in case they specified 'H'
- strcpy((char *)&c.d.asBytes + strLength, dummy);
+ // zero and one lengths
+ c.arg[1] = (uint32_t)(zero << 16 | one);
+
+ // add frequency 125 or 134
+ c.arg[2] = useHighFreq;
clearCommandBuffer();
SendCommand(&c);
return 0;
}
-// by marshmellow - sim ask data given clock, fcHigh, fcLow, invert
+// by marshmellow - sim fsk data given clock, fcHigh, fcLow, invert
// - allow pull data from DemodBuffer
int CmdLFfskSim(const char *Cmd)
{
//might be able to autodetect FCs and clock from Graphbuffer if using demod buffer
// otherwise will need FChigh, FClow, Clock, and bitstream
- uint8_t fcHigh=0, fcLow=0, clk=0;
- uint8_t invert=0;
- bool errors = FALSE;
- char hexData[32] = {0x00}; // store entered hex data
- uint8_t data[255] = {0x00};
- int dataLen = 0;
- uint8_t cmdp = 0;
- while(param_getchar(Cmd, cmdp) != 0x00)
- {
- switch(param_getchar(Cmd, cmdp))
- {
- case 'h':
- return usage_lf_simfsk();
- case 'i':
- invert = 1;
- cmdp++;
- break;
- case 'c':
- errors |= param_getdec(Cmd,cmdp+1,&clk);
- cmdp+=2;
- break;
- case 'H':
- errors |= param_getdec(Cmd,cmdp+1,&fcHigh);
- cmdp+=2;
- break;
- case 'L':
- errors |= param_getdec(Cmd,cmdp+1,&fcLow);
- cmdp+=2;
- break;
- //case 's':
- // separator=1;
- // cmdp++;
- // break;
- case 'd':
- dataLen = param_getstr(Cmd, cmdp+1, hexData);
- if (dataLen==0) {
- errors=TRUE;
- } else {
- dataLen = hextobinarray((char *)data, hexData);
- }
- if (dataLen==0) errors=TRUE;
- if (errors) PrintAndLog ("Error getting hex data");
- cmdp+=2;
- break;
- default:
- PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
- errors = TRUE;
- break;
- }
- if(errors) break;
- }
- if(cmdp == 0 && DemodBufferLen == 0)
- {
- errors = TRUE;// No args
- }
-
- //Validations
- if(errors)
- {
- return usage_lf_simfsk();
- }
+ uint8_t fcHigh = 0, fcLow = 0, clk = 0;
+ uint8_t invert = 0;
+ bool errors = FALSE;
+ char hexData[32] = {0x00}; // store entered hex data
+ uint8_t data[255] = {0x00};
+ int dataLen = 0;
+ uint8_t cmdp = 0;
+
+ while(param_getchar(Cmd, cmdp) != 0x00)
+ {
+ switch(param_getchar(Cmd, cmdp))
+ {
+ case 'h':
+ return usage_lf_simfsk();
+ case 'i':
+ invert = 1;
+ cmdp++;
+ break;
+ case 'c':
+ errors |= param_getdec(Cmd, cmdp+1, &clk);
+ cmdp += 2;
+ break;
+ case 'H':
+ errors |= param_getdec(Cmd, cmdp+1, &fcHigh);
+ cmdp += 2;
+ break;
+ case 'L':
+ errors |= param_getdec(Cmd, cmdp+1, &fcLow);
+ cmdp += 2;
+ break;
+ //case 's':
+ // separator = 1;
+ // cmdp++;
+ // break;
+ case 'd':
+ dataLen = param_getstr(Cmd, cmdp+1, hexData);
+ if (dataLen == 0)
+ errors = TRUE;
+ else
+ dataLen = hextobinarray((char *)data, hexData);
+
+ if (dataLen == 0) errors = TRUE;
+ if (errors) PrintAndLog ("Error getting hex data");
+ cmdp+=2;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = TRUE;
+ break;
+ }
+ if(errors) break;
+ }
+
+ // No args
+ if(cmdp == 0 && DemodBufferLen == 0)
+ errors = TRUE;
- if (dataLen == 0){ //using DemodBuffer
- if (clk==0 || fcHigh==0 || fcLow==0){ //manual settings must set them all
- uint8_t ans = fskClocks(&fcHigh, &fcLow, &clk, 0);
- if (ans==0){
- if (!fcHigh) fcHigh=10;
- if (!fcLow) fcLow=8;
- if (!clk) clk=50;
- }
- }
- } else {
- setDemodBuf(data, dataLen, 0);
- }
+ //Validations
+ if(errors) return usage_lf_simfsk();
+
+ if (dataLen == 0){ //using DemodBuffer
+ if (clk == 0 || fcHigh == 0 || fcLow == 0){ //manual settings must set them all
+ uint8_t ans = fskClocks(&fcHigh, &fcLow, &clk, 0);
+ if (ans==0){
+ if (!fcHigh) fcHigh = 10;
+ if (!fcLow) fcLow = 8;
+ if (!clk) clk = 50;
+ }
+ }
+ } else {
+ setDemodBuf(data, dataLen, 0);
+ }
//default if not found
- if (clk == 0) clk = 50;
- if (fcHigh == 0) fcHigh = 10;
- if (fcLow == 0) fcLow = 8;
-
- uint16_t arg1, arg2;
- arg1 = fcHigh << 8 | fcLow;
- arg2 = invert << 8 | clk;
- size_t size = DemodBufferLen;
- if (size > USB_CMD_DATA_SIZE) {
- PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
- size = USB_CMD_DATA_SIZE;
- }
- UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
-
- memcpy(c.d.asBytes, DemodBuffer, size);
+ if (clk == 0) clk = 50;
+ if (fcHigh == 0) fcHigh = 10;
+ if (fcLow == 0) fcLow = 8;
+
+ uint16_t arg1, arg2;
+ arg1 = fcHigh << 8 | fcLow;
+ arg2 = invert << 8 | clk;
+ size_t size = DemodBufferLen;
+ if (size > USB_CMD_DATA_SIZE) {
+ PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
+ size = USB_CMD_DATA_SIZE;
+ }
+ UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
+
+ memcpy(c.d.asBytes, DemodBuffer, size);
clearCommandBuffer();
- SendCommand(&c);
- return 0;
+ SendCommand(&c);
+ return 0;
}
// by marshmellow - sim ask data given clock, invert, manchester or raw, separator
// - allow pull data from DemodBuffer
int CmdLFaskSim(const char *Cmd)
{
- //autodetect clock from Graphbuffer if using demod buffer
+ // autodetect clock from Graphbuffer if using demod buffer
// needs clock, invert, manchester/raw as m or r, separator as s, and bitstream
- uint8_t encoding = 1, separator = 0;
- uint8_t clk=0, invert=0;
- bool errors = FALSE;
- char hexData[32] = {0x00};
- uint8_t data[255]= {0x00}; // store entered hex data
- int dataLen = 0;
- uint8_t cmdp = 0;
- while(param_getchar(Cmd, cmdp) != 0x00)
- {
- switch(param_getchar(Cmd, cmdp))
- {
- case 'h':
- return usage_lf_simask();
- case 'i':
- invert = 1;
- cmdp++;
- break;
- case 'c':
- errors |= param_getdec(Cmd,cmdp+1,&clk);
- cmdp+=2;
- break;
- case 'b':
- encoding=2; //biphase
- cmdp++;
- break;
- case 'm':
- encoding=1;
- cmdp++;
- break;
- case 'r':
- encoding=0;
- cmdp++;
- break;
- case 's':
- separator=1;
- cmdp++;
- break;
- case 'd':
- dataLen = param_getstr(Cmd, cmdp+1, hexData);
- if (dataLen==0) {
- errors=TRUE;
- } else {
- dataLen = hextobinarray((char *)data, hexData);
- }
- if (dataLen==0) errors=TRUE;
- if (errors) PrintAndLog ("Error getting hex data, datalen: %d",dataLen);
- cmdp+=2;
- break;
- default:
- PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
- errors = TRUE;
- break;
- }
- if(errors) break;
- }
- if(cmdp == 0 && DemodBufferLen == 0)
- {
- errors = TRUE;// No args
- }
+ uint8_t encoding = 1, separator = 0, clk = 0, invert = 0;
+ bool errors = FALSE;
+ char hexData[32] = {0x00};
+ uint8_t data[255]= {0x00}; // store entered hex data
+ int dataLen = 0;
+ uint8_t cmdp = 0;
+
+ while(param_getchar(Cmd, cmdp) != 0x00) {
+ switch(param_getchar(Cmd, cmdp)) {
+ case 'h': return usage_lf_simask();
+ case 'i':
+ invert = 1;
+ cmdp++;
+ break;
+ case 'c':
+ errors |= param_getdec(Cmd, cmdp+1, &clk);
+ cmdp += 2;
+ break;
+ case 'b':
+ encoding = 2; //biphase
+ cmdp++;
+ break;
+ case 'm':
+ encoding = 1; //manchester
+ cmdp++;
+ break;
+ case 'r':
+ encoding = 0; //raw
+ cmdp++;
+ break;
+ case 's':
+ separator = 1;
+ cmdp++;
+ break;
+ case 'd':
+ dataLen = param_getstr(Cmd, cmdp+1, hexData);
+ if (dataLen == 0)
+ errors = TRUE;
+ else
+ dataLen = hextobinarray((char *)data, hexData);
+
+ if (dataLen == 0) errors = TRUE;
+ if (errors) PrintAndLog ("Error getting hex data, datalen: %d", dataLen);
+ cmdp += 2;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = TRUE;
+ break;
+ }
+ if(errors) break;
+ }
- //Validations
- if(errors)
- {
- return usage_lf_simask();
- }
- if (dataLen == 0){ //using DemodBuffer
- if (clk == 0) clk = GetAskClock("0", false, false);
- } else {
- setDemodBuf(data, dataLen, 0);
- }
- if (clk == 0) clk = 64;
- if (encoding == 0) clk = clk/2; //askraw needs to double the clock speed
- uint16_t arg1, arg2;
- size_t size=DemodBufferLen;
- arg1 = clk << 8 | encoding;
- arg2 = invert << 8 | separator;
- if (size > USB_CMD_DATA_SIZE) {
- PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
- size = USB_CMD_DATA_SIZE;
- }
- UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
- PrintAndLog("preparing to sim ask data: %d bits", size);
- memcpy(c.d.asBytes, DemodBuffer, size);
+ // No args
+ if(cmdp == 0 && DemodBufferLen == 0)
+ errors = TRUE;
+
+ //Validations
+ if(errors) return usage_lf_simask();
+
+ if (dataLen == 0){ //using DemodBuffer
+ if (clk == 0)
+ clk = GetAskClock("0", false, false);
+ } else {
+ setDemodBuf(data, dataLen, 0);
+ }
+ if (clk == 0) clk = 64;
+ if (encoding == 0) clk = clk/2; //askraw needs to double the clock speed
+
+ size_t size = DemodBufferLen;
+
+ if (size > USB_CMD_DATA_SIZE) {
+ PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
+ size = USB_CMD_DATA_SIZE;
+ }
+
+ PrintAndLog("preparing to sim ask data: %d bits", size);
+
+ uint16_t arg1, arg2;
+ arg1 = clk << 8 | encoding;
+ arg2 = invert << 8 | separator;
+
+ UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
+ memcpy(c.d.asBytes, DemodBuffer, size);
clearCommandBuffer();
- SendCommand(&c);
- return 0;
+ SendCommand(&c);
+ return 0;
}
// by marshmellow - sim psk data given carrier, clock, invert
for (i = 0; i < (GraphTraceLen-2048); i++) {
int sum = 0;
int j;
- for (j = 0; j < arraylen(SyncPattern); j++) {
+ for (j = 0; j < ARRAYLEN(SyncPattern); j++) {
sum += GraphBuffer[i+j]*SyncPattern[j];
}
if (sum > bestCorrel) {
ans=CmdFSKdemodIO("");
if (ans>0) {
- PrintAndLog("\nValid IO Prox ID Found!");
- return 1;
+ PrintAndLog("\nValid IO Prox ID Found!");
+ return 1;
}
-
ans=CmdFSKdemodPyramid("");
if (ans>0) {
- PrintAndLog("\nValid Pyramid ID Found!");
- return 1;
+ PrintAndLog("\nValid Pyramid ID Found!");
+ return 1;
}
-
ans=CmdFSKdemodParadox("");
if (ans>0) {
- PrintAndLog("\nValid Paradox ID Found!");
- return 1;
+ PrintAndLog("\nValid Paradox ID Found!");
+ return 1;
}
-
ans=CmdFSKdemodAWID("");
if (ans>0) {
- PrintAndLog("\nValid AWID ID Found!");
- return 1;
+ PrintAndLog("\nValid AWID ID Found!");
+ return 1;
}
-
ans=CmdFSKdemodHID("");
if (ans>0) {
- PrintAndLog("\nValid HID Prox ID Found!");
- return 1;
+ PrintAndLog("\nValid HID Prox ID Found!");
+ return 1;
}
-
ans=CmdAskEM410xDemod("");
if (ans>0) {
- PrintAndLog("\nValid EM410x ID Found!");
- return 1;
+ PrintAndLog("\nValid EM410x ID Found!");
+ return 1;
}
-
ans=CmdG_Prox_II_Demod("");
if (ans>0) {
- PrintAndLog("\nValid Guardall G-Prox II ID Found!");
- return 1;
+ PrintAndLog("\nValid Guardall G-Prox II ID Found!");
+ return 1;
}
-
ans=CmdFDXBdemodBI("");
if (ans>0) {
PrintAndLog("\nValid FDX-B ID Found!");
return 1;
}
-
ans=EM4x50Read("", false);
if (ans>0) {
PrintAndLog("\nValid EM4x50 ID Found!");
return 1;
}
-
ans=CmdVikingDemod("");
if (ans>0) {
PrintAndLog("\nValid Viking ID Found!");
return 1;
}
-
ans=CmdIndalaDecode("");
if (ans>0) {
PrintAndLog("\nValid Indala ID Found!");
return 1;
}
-
ans=CmdPSKNexWatch("");
if (ans>0) {
PrintAndLog("\nValid NexWatch ID Found!");
return 1;
}
+ ans=CmdJablotronDemod("");
+ if (ans>0) {
+ PrintAndLog("\nValid Jablotron ID Found!");
+ return 1;
+ }
+ ans=CmdLFNedapDemod("");
+ if (ans>0) {
+ PrintAndLog("\nValid NEDAP ID Found!");
+ return 1;
+ }
// TIdemod?
{"help", CmdHelp, 1, "This help"},
{"awid", CmdLFAWID, 1, "{ AWID RFIDs... }"},
{"em4x", CmdLFEM4X, 1, "{ EM4X RFIDs... }"},
+ {"guard", CmdLFGuard, 1, "{ Guardall RFIDs... }"},
{"hid", CmdLFHID, 1, "{ HID RFIDs... }"},
{"hitag", CmdLFHitag, 1, "{ HITAG RFIDs... }"},
{"io", CmdLFIO, 1, "{ IOPROX RFIDs... }"},
+ {"jablotron", CmdLFJablotron, 1, "{ JABLOTRON RFIDs... }"},
+ {"nedap", CmdLFNedap, 1, "{ NEDAP RFIDs... }"},
{"pcf7931", CmdLFPCF7931, 1, "{ PCF7931 RFIDs... }"},
{"presco", CmdLFPresco, 1, "{ Presco RFIDs... }"},
{"pyramid", CmdLFPyramid, 1, "{ Farpointe/Pyramid RFIDs... }"},
projects / proxmark3-svn / blobdiff