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Picopass: dump full card, extract some details (#1408)

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* Dump entire picopass card
* Capture more iClass details
* facility code bugfix

Co-authored-by: あく <alleteam@gmail.com>
This commit is contained in:
Eric Betts
2022-07-25 08:36:38 -07:00
committed by GitHub
parent f8e0ec42c5
commit cd77b93f26
5 changed files with 88 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files
applications/picopass/picopass_device.c
+34 -26
View File
@@ -10,6 +10,9 @@ static const uint32_t picopass_file_version = 1;
PicopassDevice* picopass_device_alloc() {
PicopassDevice* picopass_dev = malloc(sizeof(PicopassDevice));
picopass_dev->dev_data.pacs.legacy = false;
picopass_dev->dev_data.pacs.se_enabled = false;
picopass_dev->dev_data.pacs.pin_length = 0;
picopass_dev->storage = furi_record_open("storage");
picopass_dev->dialogs = furi_record_open("dialogs");
return picopass_dev;
@@ -32,7 +35,7 @@ static bool picopass_device_save_file(
bool saved = false;
FlipperFormat* file = flipper_format_file_alloc(dev->storage);
PicopassPacs* pacs = &dev->dev_data.pacs;
ApplicationArea* AA1 = &dev->dev_data.AA1;
PicopassBlock* AA1 = dev->dev_data.AA1;
string_t temp_str;
string_init(temp_str);
@@ -54,40 +57,40 @@ static bool picopass_device_save_file(
if(!flipper_format_file_open_always(file, string_get_cstr(temp_str))) break;
if(dev->format == PicopassDeviceSaveFormatHF) {
uint32_t fc = pacs->record.FacilityCode;
uint32_t cn = pacs->record.CardNumber;
// Write header
if(!flipper_format_write_header_cstr(file, picopass_file_header, picopass_file_version))
break;
if(pacs->record.valid) {
if(!flipper_format_write_uint32(
file, "Facility Code", (uint32_t*)&pacs->record.FacilityCode, 1))
break;
if(!flipper_format_write_uint32(
file, "Card Number", (uint32_t*)&pacs->record.CardNumber, 1))
break;
if(!flipper_format_write_uint32(file, "Facility Code", &fc, 1)) break;
if(!flipper_format_write_uint32(file, "Card Number", &cn, 1)) break;
if(!flipper_format_write_hex(
file, "Credential", pacs->credential, PICOPASS_BLOCK_LEN))
break;
if(!flipper_format_write_hex(file, "PIN", pacs->pin0, PICOPASS_BLOCK_LEN)) break;
if(!flipper_format_write_hex(file, "PIN(cont.)", pacs->pin1, PICOPASS_BLOCK_LEN))
break;
if(!flipper_format_write_comment_cstr(file, "Picopass blocks")) break;
// TODO: Save CSN, CFG, AA1, etc
bool block_saved = true;
for(size_t i = 0; i < 4; i++) {
string_printf(temp_str, "Block %d", i + 6);
if(!flipper_format_write_hex(
file,
string_get_cstr(temp_str),
AA1->block[i].data,
PICOPASS_BLOCK_LEN)) {
block_saved = false;
if(pacs->pin_length > 0) {
if(!flipper_format_write_hex(file, "PIN\t\t", pacs->pin0, PICOPASS_BLOCK_LEN))
break;
if(!flipper_format_write_hex(
file, "PIN(cont.)\t", pacs->pin1, PICOPASS_BLOCK_LEN))
break;
}
}
if(!block_saved) break;
if(!flipper_format_write_comment_cstr(file, "This is currently incomplete")) break;
}
if(!flipper_format_write_comment_cstr(file, "Picopass blocks")) break;
bool block_saved = true;
size_t app_limit = AA1[PICOPASS_CONFIG_BLOCK_INDEX].data[0] < PICOPASS_MAX_APP_LIMIT ?
AA1[PICOPASS_CONFIG_BLOCK_INDEX].data[0] :
PICOPASS_MAX_APP_LIMIT;
for(size_t i = 0; i < app_limit; i++) {
string_printf(temp_str, "Block %d", i);
if(!flipper_format_write_hex(
file, string_get_cstr(temp_str), AA1[i].data, PICOPASS_BLOCK_LEN)) {
block_saved = false;
break;
}
}
if(!block_saved) break;
} else if(dev->format == PicopassDeviceSaveFormatLF) {
const char* lf_header = "Flipper RFID key";
// Write header
@@ -142,5 +145,10 @@ void picopass_device_free(PicopassDevice* picopass_dev) {
}
void picopass_device_data_clear(PicopassDeviceData* dev_data) {
memset(&dev_data->AA1, 0, sizeof(ApplicationArea));
for(size_t i = 0; i < PICOPASS_MAX_APP_LIMIT; i++) {
memset(dev_data->AA1[i].data, 0, sizeof(dev_data->AA1[i].data));
}
dev_data->pacs.legacy = false;
dev_data->pacs.se_enabled = false;
dev_data->pacs.pin_length = 0;
}