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Merge pull request #1655 from wh201906/standalone_14b

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Add flashmem support for HF_14BSNIFF standalone mode
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Iceman 2022-04-07 18:45:07 +02:00 • committed by GitHub
commit c52e6bbc53
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2 changed files with 53 additions and 1 deletions
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3
armsrc/Standalone/Makefile.hal
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@ -65,7 +65,8 @@ define KNOWN_STANDALONE_DEFINITIONS
| HF_14ASNIFF | 14a sniff to flashmem | | HF_14ASNIFF | 14a sniff to flashmem |
| (RDV4 only) | | | (RDV4 only) | |
+----------------------------------------------------------+ +----------------------------------------------------------+
| HF_14BSNIFF | 14b sniff | | HF_14BSNIFF | 14b sniff to flashmem (rdv4) or ram |
| | |
+----------------------------------------------------------+ +----------------------------------------------------------+
| HF_15SNIFF | 15693 sniff to flashmem (rdv4) or ram | | HF_15SNIFF | 15693 sniff to flashmem (rdv4) or ram |
| | | | | |

51
armsrc/Standalone/hf_14bsniff.c
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@ -12,6 +12,7 @@
* - LED1: sniffing * - LED1: sniffing
* - LED2: sniffed tag command, turns off when finished sniffing reader command * - LED2: sniffed tag command, turns off when finished sniffing reader command
* - LED3: sniffed reader command, turns off when finished sniffing tag command * - LED3: sniffed reader command, turns off when finished sniffing tag command
* - LED4: unmounting/sync'ing flash (normally < 100ms)
* *
* This module emits debug strings during normal operation -- so try it out in * This module emits debug strings during normal operation -- so try it out in
* the lab connected to PM3 client before taking it into the field. * the lab connected to PM3 client before taking it into the field.
@ -27,25 +28,75 @@
#include "proxmark3_arm.h" #include "proxmark3_arm.h"
#include "iso14443b.h" #include "iso14443b.h"
#include "util.h" #include "util.h"
#include "spiffs.h"
#include "appmain.h" #include "appmain.h"
#include "dbprint.h" #include "dbprint.h"
#include "ticks.h" #include "ticks.h"
#include "BigBuf.h" #include "BigBuf.h"
#define HF_14BSNIFF_LOGFILE "hf_14bsniff.trace"
static void DownloadTraceInstructions(void) {
Dbprintf("");
Dbprintf("To get the trace from flash and display it:");
Dbprintf("1. mem spiffs dump -s "HF_14BSNIFF_LOGFILE" -d hf_14bsniff.trace");
Dbprintf("2. trace load -f hf_14bsniff.trace");
Dbprintf("3. trace list -t 14b -1");
}
void ModInfo(void) { void ModInfo(void) {
DbpString(" HF 14B SNIFF, a ISO14443b sniffer"); DbpString(" HF 14B SNIFF, a ISO14443b sniffer");
DownloadTraceInstructions();
} }
void RunMod(void) { void RunMod(void) {
StandAloneMode(); StandAloneMode();
Dbprintf(_YELLOW_("HF 14B SNIFF started")); Dbprintf(_YELLOW_("HF 14B SNIFF started"));
#ifdef WITH_FLASH
rdv40_spiffs_lazy_mount();
#endif
SniffIso14443b(); SniffIso14443b();
Dbprintf("Stopped sniffing"); Dbprintf("Stopped sniffing");
SpinDelay(200); SpinDelay(200);
uint32_t trace_len = BigBuf_get_traceLen();
#ifndef WITH_FLASH
// Keep stuff in BigBuf for USB/BT dumping
if (trace_len > 0)
Dbprintf("[!] Trace length (bytes) = %u", trace_len);
#else
// Write stuff to spiffs logfile
if (trace_len > 0) {
Dbprintf("[!] Trace length (bytes) = %u", trace_len);
uint8_t *trace_buffer = BigBuf_get_addr();
if (!exists_in_spiffs(HF_14BSNIFF_LOGFILE)) {
rdv40_spiffs_write(
HF_14BSNIFF_LOGFILE, trace_buffer, trace_len, RDV40_SPIFFS_SAFETY_SAFE);
Dbprintf("[!] Wrote trace to "HF_14BSNIFF_LOGFILE);
} else {
rdv40_spiffs_append(
HF_14BSNIFF_LOGFILE, trace_buffer, trace_len, RDV40_SPIFFS_SAFETY_SAFE);
Dbprintf("[!] Appended trace to "HF_14BSNIFF_LOGFILE);
}
} else {
Dbprintf("[!] Trace buffer is empty, nothing to write!");
}
LED_D_ON();
rdv40_spiffs_lazy_unmount();
LED_D_OFF();
SpinErr(LED_A, 200, 5);
SpinDelay(100);
#endif
Dbprintf("-=[ exit ]=-"); Dbprintf("-=[ exit ]=-");
LEDsoff(); LEDsoff();
#ifdef WITH_FLASH
DownloadTraceInstructions();
#endif
} }