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fix emulation by using latest sources

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fixed file saving
This commit is contained in:
g3gg0
2022-12-10 03:22:34 +01:00
parent fcdf3e94c5
commit d116b3fac1
10 changed files with 272 additions and 175 deletions
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4
applications/main/nfc/scenes/nfc_scene_nfc_data_info.c
View File

@@ -55,7 +55,7 @@ void nfc_scene_nfc_data_info_on_enter(void* context) {
} else if(protocol == NfcDeviceProtocolMifareDesfire) { } else if(protocol == NfcDeviceProtocolMifareDesfire) {
furi_string_cat_printf(temp_str, "\e#MIFARE DESfire\n"); furi_string_cat_printf(temp_str, "\e#MIFARE DESfire\n");
} else if(protocol == NfcDeviceProtocolNfcV) { } else if(protocol == NfcDeviceProtocolNfcV) {
switch(dev_data->nfcv_data.type) { switch(dev_data->nfcv_data.sub_type) {
case NfcVTypePlain: case NfcVTypePlain:
furi_string_cat_printf(temp_str, "\e#ISO15693\n"); furi_string_cat_printf(temp_str, "\e#ISO15693\n");
break; break;
@@ -113,7 +113,7 @@ void nfc_scene_nfc_data_info_on_enter(void* context) {
} }
furi_string_cat_printf(temp_str, "\n"); furi_string_cat_printf(temp_str, "\n");
switch(dev_data->nfcv_data.type) { switch(dev_data->nfcv_data.sub_type) {
case NfcVTypePlain: case NfcVTypePlain:
furi_string_cat_printf(temp_str, "Type: Plain\n"); furi_string_cat_printf(temp_str, "Type: Plain\n");
break; break;

9
applications/main/nfc/scenes/nfc_scene_nfcv_unlock.c
View File

@@ -35,7 +35,8 @@ void nfc_scene_nfcv_unlock_set_state(Nfc* nfc, NfcSceneNfcVUnlockState state) {
Popup* popup = nfc->popup; Popup* popup = nfc->popup;
if(state == NfcSceneNfcVUnlockStateDetecting) { if(state == NfcSceneNfcVUnlockStateDetecting) {
popup_reset(popup); popup_reset(popup);
popup_set_text(popup, "Put Tonie On\nFlipper's Back", 97, 24, AlignCenter, AlignTop); popup_set_text(
popup, "Put figurine on\nFlipper's back", 97, 24, AlignCenter, AlignTop);
popup_set_icon(popup, 0, 8, &I_NFC_manual_60x50); popup_set_icon(popup, 0, 8, &I_NFC_manual_60x50);
} else if(state == NfcSceneNfcVUnlockStateUnlocked) { } else if(state == NfcSceneNfcVUnlockStateUnlocked) {
popup_reset(popup); popup_reset(popup);
@@ -43,7 +44,8 @@ void nfc_scene_nfcv_unlock_set_state(Nfc* nfc, NfcSceneNfcVUnlockState state) {
if(nfc_worker_get_state(nfc->worker) == NfcWorkerStateNfcVUnlockAndSave) { if(nfc_worker_get_state(nfc->worker) == NfcWorkerStateNfcVUnlockAndSave) {
nfc_text_store_set( nfc_text_store_set(
nfc, nfc,
"SLIX_%02X%02X%02X%02X%02X%02X%02X%02X", "%s/SLIX_%02X%02X%02X%02X%02X%02X%02X%02X%s",
NFC_APP_FOLDER,
nfc_data->uid[0], nfc_data->uid[0],
nfc_data->uid[1], nfc_data->uid[1],
nfc_data->uid[2], nfc_data->uid[2],
@@ -51,7 +53,8 @@ void nfc_scene_nfcv_unlock_set_state(Nfc* nfc, NfcSceneNfcVUnlockState state) {
nfc_data->uid[4], nfc_data->uid[4],
nfc_data->uid[5], nfc_data->uid[5],
nfc_data->uid[6], nfc_data->uid[6],
nfc_data->uid[7]); nfc_data->uid[7],
NFC_APP_EXTENSION);
nfc->dev->format = NfcDeviceSaveFormatNfcV; nfc->dev->format = NfcDeviceSaveFormatNfcV;

5
firmware/targets/f7/api_symbols.csv
View File

@@ -1,5 +1,5 @@
entry,status,name,type,params entry,status,name,type,params
Version,+,10.1,, Version,+,10.2,,
Header,+,applications/services/bt/bt_service/bt.h,, Header,+,applications/services/bt/bt_service/bt.h,,
Header,+,applications/services/cli/cli.h,, Header,+,applications/services/cli/cli.h,,
Header,+,applications/services/cli/cli_vcp.h,, Header,+,applications/services/cli/cli_vcp.h,,
@@ -732,6 +732,7 @@ Function,-,digital_sequence_alloc,DigitalSequence*,"uint32_t, const GpioPin*"
Function,-,digital_sequence_clear,void,DigitalSequence* Function,-,digital_sequence_clear,void,DigitalSequence*
Function,-,digital_sequence_free,void,DigitalSequence* Function,-,digital_sequence_free,void,DigitalSequence*
Function,-,digital_sequence_send,_Bool,DigitalSequence* Function,-,digital_sequence_send,_Bool,DigitalSequence*
Function,-,digital_sequence_set_sendtime,void,"DigitalSequence*, uint32_t"
Function,-,digital_sequence_set_signal,void,"DigitalSequence*, uint8_t, DigitalSignal*" Function,-,digital_sequence_set_signal,void,"DigitalSequence*, uint8_t, DigitalSignal*"
Function,-,digital_signal_add,void,"DigitalSignal*, uint32_t" Function,-,digital_signal_add,void,"DigitalSignal*, uint32_t"
Function,-,digital_signal_add_pulse,void,"DigitalSignal*, uint32_t, _Bool" Function,-,digital_signal_add_pulse,void,"DigitalSignal*, uint32_t, _Bool"
@@ -2031,7 +2032,7 @@ Function,-,nfca_signal_free,void,NfcaSignal*
Function,-,nfcv_emu_deinit,void,NfcVData* Function,-,nfcv_emu_deinit,void,NfcVData*
Function,-,nfcv_emu_init,void,"FuriHalNfcDevData*, NfcVData*" Function,-,nfcv_emu_init,void,"FuriHalNfcDevData*, NfcVData*"
Function,-,nfcv_emu_loop,_Bool,"FuriHalNfcTxRxContext*, FuriHalNfcDevData*, NfcVData*, uint32_t" Function,-,nfcv_emu_loop,_Bool,"FuriHalNfcTxRxContext*, FuriHalNfcDevData*, NfcVData*, uint32_t"
Function,-,nfcv_emu_send,void,"FuriHalNfcTxRxContext*, NfcVData*, uint8_t*, uint8_t, NfcVSendFlags" Function,-,nfcv_emu_send,void,"FuriHalNfcTxRxContext*, NfcVData*, uint8_t*, uint8_t, NfcVSendFlags, uint32_t"
Function,-,nfcv_inventory,ReturnCode,uint8_t* Function,-,nfcv_inventory,ReturnCode,uint8_t*
Function,-,nfcv_read_blocks,ReturnCode,"NfcVReader*, NfcVData*" Function,-,nfcv_read_blocks,ReturnCode,"NfcVReader*, NfcVData*"
Function,-,nfcv_read_card,_Bool,"NfcVReader*, FuriHalNfcDevData*, NfcVData*" Function,-,nfcv_read_card,_Bool,"NfcVReader*, FuriHalNfcDevData*, NfcVData*"
1 entry status name type params
2 Version + 10.1 10.2
3 Header + applications/services/bt/bt_service/bt.h
4 Header + applications/services/cli/cli.h
5 Header + applications/services/cli/cli_vcp.h
732 Function - digital_sequence_clear void DigitalSequence*
733 Function - digital_sequence_free void DigitalSequence*
734 Function - digital_sequence_send _Bool DigitalSequence*
735 Function - digital_sequence_set_sendtime void DigitalSequence*, uint32_t
736 Function - digital_sequence_set_signal void DigitalSequence*, uint8_t, DigitalSignal*
737 Function - digital_signal_add void DigitalSignal*, uint32_t
738 Function - digital_signal_add_pulse void DigitalSignal*, uint32_t, _Bool
2032 Function - nfcv_emu_deinit void NfcVData*
2033 Function - nfcv_emu_init void FuriHalNfcDevData*, NfcVData*
2034 Function - nfcv_emu_loop _Bool FuriHalNfcTxRxContext*, FuriHalNfcDevData*, NfcVData*, uint32_t
2035 Function - nfcv_emu_send void FuriHalNfcTxRxContext*, NfcVData*, uint8_t*, uint8_t, NfcVSendFlags FuriHalNfcTxRxContext*, NfcVData*, uint8_t*, uint8_t, NfcVSendFlags, uint32_t
2036 Function - nfcv_inventory ReturnCode uint8_t*
2037 Function - nfcv_read_blocks ReturnCode NfcVReader*, NfcVData*
2038 Function - nfcv_read_card _Bool NfcVReader*, FuriHalNfcDevData*, NfcVData*

21
lib/digital_signal/digital_signal.c
View File

@@ -250,6 +250,7 @@ void digital_sequence_alloc_sequence(DigitalSequence* sequence, uint32_t size) {
sequence->sequence_used = 0; sequence->sequence_used = 0;
sequence->sequence_size = size; sequence->sequence_size = size;
sequence->sequence = malloc(sequence->sequence_size); sequence->sequence = malloc(sequence->sequence_size);
sequence->send_time = 0;
} }
DigitalSequence* digital_sequence_alloc(uint32_t size, const GpioPin* gpio) { DigitalSequence* digital_sequence_alloc(uint32_t size, const GpioPin* gpio) {
@@ -287,6 +288,10 @@ void digital_sequence_set_signal(
digital_signal_prepare(signal); digital_signal_prepare(signal);
} }
void digital_sequence_set_sendtime(DigitalSequence* sequence, uint32_t send_time) {
sequence->send_time = send_time;
}
void digital_sequence_add(DigitalSequence* sequence, uint8_t signal_index) { void digital_sequence_add(DigitalSequence* sequence, uint8_t signal_index) {
furi_assert(sequence); furi_assert(sequence);
furi_assert(signal_index < sequence->signals_size); furi_assert(signal_index < sequence->signals_size);
@@ -347,7 +352,8 @@ void digital_signal_update_dma(DigitalSignal* signal) {
LL_DMA_ClearFlag_TC2(DMA1); LL_DMA_ClearFlag_TC2(DMA1);
} }
static bool digital_sequence_send_signal(DigitalSignal* signal) { static bool digital_sequence_send_signal(DigitalSequence* sequence, DigitalSignal* signal) {
furi_assert(sequence);
furi_assert(signal); furi_assert(signal);
/* the first iteration has to set up the whole machinery */ /* the first iteration has to set up the whole machinery */
@@ -357,6 +363,17 @@ static bool digital_sequence_send_signal(DigitalSignal* signal) {
return false; return false;
} }
digital_signal_setup_timer(); digital_signal_setup_timer();
/* if the send time is specified, wait till the core timer passed beyond that time */
if(sequence->send_time != 0) {
while(true) {
uint32_t delta = sequence->send_time - DWT->CYCCNT;
/* yeah, it's making use of underflows... */
if(delta > 0x80000000) {
break;
}
}
}
digital_signal_start_timer(); digital_signal_start_timer();
} else { } else {
/* configure next polarities and timings */ /* configure next polarities and timings */
@@ -438,7 +455,7 @@ bool digital_sequence_send(DigitalSequence* sequence) {
sequence->signals_prolonged[signal_index] = needs_prolongation; sequence->signals_prolonged[signal_index] = needs_prolongation;
} }
bool success = digital_sequence_send_signal(sig); bool success = digital_sequence_send_signal(sequence, sig);
if(!success) { if(!success) {
break; break;

2
lib/digital_signal/digital_signal.h
View File

@@ -41,6 +41,7 @@ typedef struct {
bool* signals_prolonged; bool* signals_prolonged;
uint8_t* sequence; uint8_t* sequence;
const GpioPin* gpio; const GpioPin* gpio;
uint32_t send_time;
} DigitalSequence; } DigitalSequence;
DigitalSignal* digital_signal_alloc(uint32_t max_edges_cnt); DigitalSignal* digital_signal_alloc(uint32_t max_edges_cnt);
@@ -69,6 +70,7 @@ void digital_sequence_set_signal(
DigitalSequence* sequence, DigitalSequence* sequence,
uint8_t signal_index, uint8_t signal_index,
DigitalSignal* signal); DigitalSignal* signal);
void digital_sequence_set_sendtime(DigitalSequence* sequence, uint32_t send_time);
void digital_sequence_add(DigitalSequence* sequence, uint8_t signal_index); void digital_sequence_add(DigitalSequence* sequence, uint8_t signal_index);
bool digital_sequence_send(DigitalSequence* sequence); bool digital_sequence_send(DigitalSequence* sequence);
void digital_sequence_clear(DigitalSequence* sequence); void digital_sequence_clear(DigitalSequence* sequence);

8
lib/nfc/nfc_device.c
View File

@@ -860,10 +860,10 @@ static bool nfc_device_save_nfcv_data(FlipperFormat* file, NfcDevice* dev) {
file, file,
"Subtype of this card (0 = ISO15693, 1 = SLIX, 2 = SLIX-S, 3 = SLIX-L, 4 = SLIX2)")) "Subtype of this card (0 = ISO15693, 1 = SLIX, 2 = SLIX-S, 3 = SLIX-L, 4 = SLIX2)"))
break; break;
temp_uint8 = (uint8_t)data->type; temp_uint8 = (uint8_t)data->sub_type;
if(!flipper_format_write_hex(file, "Subtype", &temp_uint8, 1)) break; if(!flipper_format_write_hex(file, "Subtype", &temp_uint8, 1)) break;
switch(data->type) { switch(data->sub_type) {
case NfcVTypePlain: case NfcVTypePlain:
if(!flipper_format_write_comment_cstr(file, "End of ISO15693 parameters")) break; if(!flipper_format_write_comment_cstr(file, "End of ISO15693 parameters")) break;
saved = true; saved = true;
@@ -906,9 +906,9 @@ bool nfc_device_load_nfcv_data(FlipperFormat* file, NfcDevice* dev) {
file, "Data Content", data->data, data->block_num * data->block_size)) file, "Data Content", data->data, data->block_num * data->block_size))
break; break;
if(!flipper_format_read_hex(file, "Subtype", &temp_value, 1)) break; if(!flipper_format_read_hex(file, "Subtype", &temp_value, 1)) break;
data->type = temp_value; data->sub_type = temp_value;
switch(data->type) { switch(data->sub_type) {
case NfcVTypePlain: case NfcVTypePlain:
parsed = true; parsed = true;
break; break;

302
lib/nfc/protocols/nfcv.c
View File

@@ -38,13 +38,13 @@ ReturnCode nfcv_inventory(uint8_t* uid) {
return ret; return ret;
} }
ReturnCode nfcv_read_blocks(NfcVReader* reader, NfcVData* data) { ReturnCode nfcv_read_blocks(NfcVReader* reader, NfcVData* nfcv_data) {
UNUSED(reader); UNUSED(reader);
uint16_t received = 0; uint16_t received = 0;
for(size_t block = 0; block < data->block_num; block++) { for(size_t block = 0; block < nfcv_data->block_num; block++) {
uint8_t rxBuf[32]; uint8_t rxBuf[32];
FURI_LOG_D(TAG, "Reading block %d/%d", block, (data->block_num - 1)); FURI_LOG_D(TAG, "Reading block %d/%d", block, (nfcv_data->block_num - 1));
ReturnCode ret = ERR_NONE; ReturnCode ret = ERR_NONE;
for(int tries = 0; tries < 5; tries++) { for(int tries = 0; tries < 5; tries++) {
@@ -59,20 +59,21 @@ ReturnCode nfcv_read_blocks(NfcVReader* reader, NfcVData* data) {
FURI_LOG_D(TAG, "failed to read: %d", ret); FURI_LOG_D(TAG, "failed to read: %d", ret);
return ret; return ret;
} }
memcpy(&(data->data[block * data->block_size]), &rxBuf[1], data->block_size); memcpy(
&(nfcv_data->data[block * nfcv_data->block_size]), &rxBuf[1], nfcv_data->block_size);
FURI_LOG_D( FURI_LOG_D(
TAG, TAG,
" %02X %02X %02X %02X", " %02X %02X %02X %02X",
data->data[block * data->block_size + 0], nfcv_data->data[block * nfcv_data->block_size + 0],
data->data[block * data->block_size + 1], nfcv_data->data[block * nfcv_data->block_size + 1],
data->data[block * data->block_size + 2], nfcv_data->data[block * nfcv_data->block_size + 2],
data->data[block * data->block_size + 3]); nfcv_data->data[block * nfcv_data->block_size + 3]);
} }
return ERR_NONE; return ERR_NONE;
} }
ReturnCode nfcv_read_sysinfo(FuriHalNfcDevData* nfc_data, NfcVData* data) { ReturnCode nfcv_read_sysinfo(FuriHalNfcDevData* nfc_data, NfcVData* nfcv_data) {
uint8_t rxBuf[32]; uint8_t rxBuf[32];
uint16_t received = 0; uint16_t received = 0;
ReturnCode ret = ERR_NONE; ReturnCode ret = ERR_NONE;
@@ -96,11 +97,11 @@ ReturnCode nfcv_read_sysinfo(FuriHalNfcDevData* nfc_data, NfcVData* data) {
for(int pos = 0; pos < nfc_data->uid_len; pos++) { for(int pos = 0; pos < nfc_data->uid_len; pos++) {
nfc_data->uid[pos] = rxBuf[2 + (7 - pos)]; nfc_data->uid[pos] = rxBuf[2 + (7 - pos)];
} }
data->dsfid = rxBuf[10]; nfcv_data->dsfid = rxBuf[10];
data->afi = rxBuf[11]; nfcv_data->afi = rxBuf[11];
data->block_num = rxBuf[12] + 1; nfcv_data->block_num = rxBuf[12] + 1;
data->block_size = rxBuf[13] + 1; nfcv_data->block_size = rxBuf[13] + 1;
data->ic_ref = rxBuf[14]; nfcv_data->ic_ref = rxBuf[14];
FURI_LOG_D( FURI_LOG_D(
TAG, TAG,
" UID: %02X %02X %02X %02X %02X %02X %02X %02X", " UID: %02X %02X %02X %02X %02X %02X %02X %02X",
@@ -115,11 +116,11 @@ ReturnCode nfcv_read_sysinfo(FuriHalNfcDevData* nfc_data, NfcVData* data) {
FURI_LOG_D( FURI_LOG_D(
TAG, TAG,
" DSFID %d, AFI %d, Blocks %d, Size %d, IC Ref %d", " DSFID %d, AFI %d, Blocks %d, Size %d, IC Ref %d",
data->dsfid, nfcv_data->dsfid,
data->afi, nfcv_data->afi,
data->block_num, nfcv_data->block_num,
data->block_size, nfcv_data->block_size,
data->ic_ref); nfcv_data->ic_ref);
return ret; return ret;
} }
FURI_LOG_D(TAG, "Failed: %d", ret); FURI_LOG_D(TAG, "Failed: %d", ret);
@@ -142,18 +143,18 @@ bool nfcv_read_card(NfcVReader* reader, FuriHalNfcDevData* nfc_data, NfcVData* n
if(slix_check_card_type(nfc_data)) { if(slix_check_card_type(nfc_data)) {
FURI_LOG_I(TAG, "NXP SLIX detected"); FURI_LOG_I(TAG, "NXP SLIX detected");
nfcv_data->type = NfcVTypeSlix; nfcv_data->sub_type = NfcVTypeSlix;
} else if(slix2_check_card_type(nfc_data)) { } else if(slix2_check_card_type(nfc_data)) {
FURI_LOG_I(TAG, "NXP SLIX2 detected"); FURI_LOG_I(TAG, "NXP SLIX2 detected");
nfcv_data->type = NfcVTypeSlix2; nfcv_data->sub_type = NfcVTypeSlix2;
} else if(slix_s_check_card_type(nfc_data)) { } else if(slix_s_check_card_type(nfc_data)) {
FURI_LOG_I(TAG, "NXP SLIX-S detected"); FURI_LOG_I(TAG, "NXP SLIX-S detected");
nfcv_data->type = NfcVTypeSlixS; nfcv_data->sub_type = NfcVTypeSlixS;
} else if(slix_l_check_card_type(nfc_data)) { } else if(slix_l_check_card_type(nfc_data)) {
FURI_LOG_I(TAG, "NXP SLIX-L detected"); FURI_LOG_I(TAG, "NXP SLIX-L detected");
nfcv_data->type = NfcVTypeSlixL; nfcv_data->sub_type = NfcVTypeSlixL;
} else { } else {
nfcv_data->type = NfcVTypePlain; nfcv_data->sub_type = NfcVTypePlain;
} }
return true; return true;
@@ -179,97 +180,128 @@ void nfcv_crc(uint8_t* data, uint32_t length) {
data[length + 1] = crc >> 8; data[length + 1] = crc >> 8;
} }
void nfcv_emu_free(NfcVData* data) { void nfcv_emu_free(NfcVData* nfcv_data) {
digital_sequence_free(data->emu_air.nfcv_signal); if(nfcv_data->emu_air.nfcv_signal) {
digital_signal_free(data->emu_air.nfcv_resp_unmod_256); digital_sequence_free(nfcv_data->emu_air.nfcv_signal);
digital_signal_free(data->emu_air.nfcv_resp_pulse_32); }
digital_signal_free(data->emu_air.nfcv_resp_one); if(nfcv_data->emu_air.nfcv_resp_unmod_256) {
digital_signal_free(data->emu_air.nfcv_resp_zero); digital_signal_free(nfcv_data->emu_air.nfcv_resp_unmod_256);
digital_signal_free(data->emu_air.nfcv_resp_sof); }
digital_signal_free(data->emu_air.nfcv_resp_eof); if(nfcv_data->emu_air.nfcv_resp_pulse_32) {
digital_signal_free(nfcv_data->emu_air.nfcv_resp_pulse_32);
}
if(nfcv_data->emu_air.nfcv_resp_one) {
digital_signal_free(nfcv_data->emu_air.nfcv_resp_one);
}
if(nfcv_data->emu_air.nfcv_resp_zero) {
digital_signal_free(nfcv_data->emu_air.nfcv_resp_zero);
}
if(nfcv_data->emu_air.nfcv_resp_sof) {
digital_signal_free(nfcv_data->emu_air.nfcv_resp_sof);
}
if(nfcv_data->emu_air.nfcv_resp_eof) {
digital_signal_free(nfcv_data->emu_air.nfcv_resp_eof);
}
if(nfcv_data->emu_air.reader_signal) {
pulse_reader_free(nfcv_data->emu_air.reader_signal);
}
data->emu_air.nfcv_signal = NULL; nfcv_data->emu_air.nfcv_signal = NULL;
data->emu_air.nfcv_resp_unmod_256 = NULL; nfcv_data->emu_air.nfcv_resp_unmod_256 = NULL;
data->emu_air.nfcv_resp_pulse_32 = NULL; nfcv_data->emu_air.nfcv_resp_pulse_32 = NULL;
data->emu_air.nfcv_resp_one = NULL; nfcv_data->emu_air.nfcv_resp_one = NULL;
data->emu_air.nfcv_resp_zero = NULL; nfcv_data->emu_air.nfcv_resp_zero = NULL;
data->emu_air.nfcv_resp_sof = NULL; nfcv_data->emu_air.nfcv_resp_sof = NULL;
data->emu_air.nfcv_resp_eof = NULL; nfcv_data->emu_air.nfcv_resp_eof = NULL;
nfcv_data->emu_air.reader_signal = NULL;
} }
void nfcv_emu_alloc(NfcVData* data) { void nfcv_emu_alloc(NfcVData* nfcv_data) {
if(!data->emu_air.nfcv_signal) { if(!nfcv_data->emu_air.nfcv_signal) {
/* assuming max frame length is 255 bytes */ /* assuming max frame length is 255 bytes */
data->emu_air.nfcv_signal = digital_sequence_alloc(8 * 255 + 2, &gpio_spi_r_mosi); nfcv_data->emu_air.nfcv_signal = digital_sequence_alloc(8 * 255 + 2, &gpio_spi_r_mosi);
} }
if(!data->emu_air.nfcv_resp_unmod_256) { if(!nfcv_data->emu_air.nfcv_resp_unmod_256) {
/* unmodulated 256/fc signal as building block */ /* unmodulated 256/fc signal as building block */
data->emu_air.nfcv_resp_unmod_256 = digital_signal_alloc(4); nfcv_data->emu_air.nfcv_resp_unmod_256 = digital_signal_alloc(4);
data->emu_air.nfcv_resp_unmod_256->start_level = false; nfcv_data->emu_air.nfcv_resp_unmod_256->start_level = false;
data->emu_air.nfcv_resp_unmod_256->edge_timings[0] = nfcv_data->emu_air.nfcv_resp_unmod_256->edge_timings[0] =
(uint32_t)(NFCV_RESP_SUBC1_UNMOD_256 * DIGITAL_SIGNAL_UNIT_S); (uint32_t)(NFCV_RESP_SUBC1_UNMOD_256 * DIGITAL_SIGNAL_UNIT_S);
data->emu_air.nfcv_resp_unmod_256->edge_cnt = 1; nfcv_data->emu_air.nfcv_resp_unmod_256->edge_cnt = 1;
} }
if(!data->emu_air.nfcv_resp_pulse_32) { if(!nfcv_data->emu_air.nfcv_resp_pulse_32) {
/* modulated fc/32 pulse as building block */ /* modulated fc/32 pulse as building block */
data->emu_air.nfcv_resp_pulse_32 = digital_signal_alloc(4); nfcv_data->emu_air.nfcv_resp_pulse_32 = digital_signal_alloc(4);
data->emu_air.nfcv_resp_pulse_32->start_level = true; nfcv_data->emu_air.nfcv_resp_pulse_32->start_level = true;
data->emu_air.nfcv_resp_pulse_32->edge_timings[0] = nfcv_data->emu_air.nfcv_resp_pulse_32->edge_timings[0] =
(uint32_t)(NFCV_RESP_SUBC1_PULSE_32 * DIGITAL_SIGNAL_UNIT_S); (uint32_t)(NFCV_RESP_SUBC1_PULSE_32 * DIGITAL_SIGNAL_UNIT_S);
data->emu_air.nfcv_resp_pulse_32->edge_timings[1] = nfcv_data->emu_air.nfcv_resp_pulse_32->edge_timings[1] =
(uint32_t)(NFCV_RESP_SUBC1_PULSE_32 * DIGITAL_SIGNAL_UNIT_S); (uint32_t)(NFCV_RESP_SUBC1_PULSE_32 * DIGITAL_SIGNAL_UNIT_S);
data->emu_air.nfcv_resp_pulse_32->edge_cnt = 2; nfcv_data->emu_air.nfcv_resp_pulse_32->edge_cnt = 2;
} }
if(!data->emu_air.nfcv_resp_one) { if(!nfcv_data->emu_air.nfcv_resp_one) {
/* logical one: 256/fc unmodulated then 8 pulses fc/32 */ /* logical one: 256/fc unmodulated then 8 pulses fc/32 */
data->emu_air.nfcv_resp_one = digital_signal_alloc(24); nfcv_data->emu_air.nfcv_resp_one = digital_signal_alloc(24);
digital_signal_append(data->emu_air.nfcv_resp_one, data->emu_air.nfcv_resp_unmod_256); digital_signal_append(
nfcv_data->emu_air.nfcv_resp_one, nfcv_data->emu_air.nfcv_resp_unmod_256);
for(size_t i = 0; i < 8; i++) { for(size_t i = 0; i < 8; i++) {
digital_signal_append(data->emu_air.nfcv_resp_one, data->emu_air.nfcv_resp_pulse_32); digital_signal_append(
nfcv_data->emu_air.nfcv_resp_one, nfcv_data->emu_air.nfcv_resp_pulse_32);
} }
} }
if(!data->emu_air.nfcv_resp_zero) { if(!nfcv_data->emu_air.nfcv_resp_zero) {
/* logical zero: 8 pulses fc/32 then 256/fc unmodulated */ /* logical zero: 8 pulses fc/32 then 256/fc unmodulated */
data->emu_air.nfcv_resp_zero = digital_signal_alloc(24); nfcv_data->emu_air.nfcv_resp_zero = digital_signal_alloc(24);
for(size_t i = 0; i < 8; i++) { for(size_t i = 0; i < 8; i++) {
digital_signal_append(data->emu_air.nfcv_resp_zero, data->emu_air.nfcv_resp_pulse_32); digital_signal_append(
nfcv_data->emu_air.nfcv_resp_zero, nfcv_data->emu_air.nfcv_resp_pulse_32);
} }
digital_signal_append(data->emu_air.nfcv_resp_zero, data->emu_air.nfcv_resp_unmod_256); digital_signal_append(
nfcv_data->emu_air.nfcv_resp_zero, nfcv_data->emu_air.nfcv_resp_unmod_256);
} }
if(!data->emu_air.nfcv_resp_sof) { if(!nfcv_data->emu_air.nfcv_resp_sof) {
/* SOF: unmodulated 768/fc, 24 pulses fc/32, logic 1 */ /* SOF: unmodulated 768/fc, 24 pulses fc/32, logic 1 */
data->emu_air.nfcv_resp_sof = digital_signal_alloc(128); nfcv_data->emu_air.nfcv_resp_sof = digital_signal_alloc(128);
digital_signal_append(data->emu_air.nfcv_resp_sof, data->emu_air.nfcv_resp_unmod_256); digital_signal_append(
digital_signal_append(data->emu_air.nfcv_resp_sof, data->emu_air.nfcv_resp_unmod_256); nfcv_data->emu_air.nfcv_resp_sof, nfcv_data->emu_air.nfcv_resp_unmod_256);
digital_signal_append(data->emu_air.nfcv_resp_sof, data->emu_air.nfcv_resp_unmod_256); digital_signal_append(
nfcv_data->emu_air.nfcv_resp_sof, nfcv_data->emu_air.nfcv_resp_unmod_256);
digital_signal_append(
nfcv_data->emu_air.nfcv_resp_sof, nfcv_data->emu_air.nfcv_resp_unmod_256);
for(size_t i = 0; i < 24; i++) { for(size_t i = 0; i < 24; i++) {
digital_signal_append(data->emu_air.nfcv_resp_sof, data->emu_air.nfcv_resp_pulse_32); digital_signal_append(
nfcv_data->emu_air.nfcv_resp_sof, nfcv_data->emu_air.nfcv_resp_pulse_32);
} }
digital_signal_append(data->emu_air.nfcv_resp_sof, data->emu_air.nfcv_resp_one); digital_signal_append(nfcv_data->emu_air.nfcv_resp_sof, nfcv_data->emu_air.nfcv_resp_one);
} }
if(!data->emu_air.nfcv_resp_eof) { if(!nfcv_data->emu_air.nfcv_resp_eof) {
/* EOF: logic 0, 24 pulses fc/32, unmodulated 768/fc */ /* EOF: logic 0, 24 pulses fc/32, unmodulated 768/fc */
data->emu_air.nfcv_resp_eof = digital_signal_alloc(128); nfcv_data->emu_air.nfcv_resp_eof = digital_signal_alloc(128);
digital_signal_append(data->emu_air.nfcv_resp_eof, data->emu_air.nfcv_resp_zero); digital_signal_append(nfcv_data->emu_air.nfcv_resp_eof, nfcv_data->emu_air.nfcv_resp_zero);
for(size_t i = 0; i < 24; i++) { for(size_t i = 0; i < 24; i++) {
digital_signal_append(data->emu_air.nfcv_resp_eof, data->emu_air.nfcv_resp_pulse_32); digital_signal_append(
nfcv_data->emu_air.nfcv_resp_eof, nfcv_data->emu_air.nfcv_resp_pulse_32);
} }
digital_signal_append(data->emu_air.nfcv_resp_eof, data->emu_air.nfcv_resp_unmod_256); digital_signal_append(
digital_signal_append(data->emu_air.nfcv_resp_eof, data->emu_air.nfcv_resp_unmod_256); nfcv_data->emu_air.nfcv_resp_eof, nfcv_data->emu_air.nfcv_resp_unmod_256);
digital_signal_append(data->emu_air.nfcv_resp_eof, data->emu_air.nfcv_resp_unmod_256); digital_signal_append(
nfcv_data->emu_air.nfcv_resp_eof, nfcv_data->emu_air.nfcv_resp_unmod_256);
digital_signal_append(
nfcv_data->emu_air.nfcv_resp_eof, nfcv_data->emu_air.nfcv_resp_unmod_256);
/* add extra silence */ /* add extra silence */
digital_signal_append(data->emu_air.nfcv_resp_eof, data->emu_air.nfcv_resp_unmod_256); digital_signal_append(
nfcv_data->emu_air.nfcv_resp_eof, nfcv_data->emu_air.nfcv_resp_unmod_256);
} }
digital_sequence_set_signal( digital_sequence_set_signal(
data->emu_air.nfcv_signal, NFCV_SIG_SOF, data->emu_air.nfcv_resp_sof); nfcv_data->emu_air.nfcv_signal, NFCV_SIG_SOF, nfcv_data->emu_air.nfcv_resp_sof);
digital_sequence_set_signal( digital_sequence_set_signal(
data->emu_air.nfcv_signal, NFCV_SIG_BIT0, data->emu_air.nfcv_resp_zero); nfcv_data->emu_air.nfcv_signal, NFCV_SIG_BIT0, nfcv_data->emu_air.nfcv_resp_zero);
digital_sequence_set_signal( digital_sequence_set_signal(
data->emu_air.nfcv_signal, NFCV_SIG_BIT1, data->emu_air.nfcv_resp_one); nfcv_data->emu_air.nfcv_signal, NFCV_SIG_BIT1, nfcv_data->emu_air.nfcv_resp_one);
digital_sequence_set_signal( digital_sequence_set_signal(
data->emu_air.nfcv_signal, NFCV_SIG_EOF, data->emu_air.nfcv_resp_eof); nfcv_data->emu_air.nfcv_signal, NFCV_SIG_EOF, nfcv_data->emu_air.nfcv_resp_eof);
} }
void nfcv_emu_send( void nfcv_emu_send(
@@ -277,7 +309,8 @@ void nfcv_emu_send(
NfcVData* nfcv, NfcVData* nfcv,
uint8_t* data, uint8_t* data,
uint8_t length, uint8_t length,
NfcVSendFlags flags) { NfcVSendFlags flags,
uint32_t send_time) {
/* picked default value (0) to match the most common format */ /* picked default value (0) to match the most common format */
if(!flags) { if(!flags) {
flags = NfcVSendFlagsSof | NfcVSendFlagsCrc | NfcVSendFlagsEof | flags = NfcVSendFlagsSof | NfcVSendFlagsCrc | NfcVSendFlagsEof |
@@ -309,6 +342,7 @@ void nfcv_emu_send(
} }
FURI_CRITICAL_ENTER(); FURI_CRITICAL_ENTER();
digital_sequence_set_sendtime(nfcv->emu_air.nfcv_signal, send_time);
digital_sequence_send(nfcv->emu_air.nfcv_signal); digital_sequence_send(nfcv->emu_air.nfcv_signal);
FURI_CRITICAL_EXIT(); FURI_CRITICAL_EXIT();
furi_hal_gpio_write(&gpio_spi_r_mosi, false); furi_hal_gpio_write(&gpio_spi_r_mosi, false);
@@ -318,13 +352,13 @@ void nfcv_emu_send(
} }
} }
static void nfcv_uidcpy(uint8_t* dst, uint8_t* src) { static void nfcv_revuidcpy(uint8_t* dst, uint8_t* src) {
for(int pos = 0; pos < 8; pos++) { for(int pos = 0; pos < 8; pos++) {
dst[pos] = src[7 - pos]; dst[pos] = src[7 - pos];
} }
} }
static int nfcv_uidcmp(uint8_t* dst, uint8_t* src) { static int nfcv_revuidcmp(uint8_t* dst, uint8_t* src) {
for(int pos = 0; pos < 8; pos++) { for(int pos = 0; pos < 8; pos++) {
if(dst[pos] != src[7 - pos]) { if(dst[pos] != src[7 - pos]) {
return 1; return 1;
@@ -336,37 +370,29 @@ static int nfcv_uidcmp(uint8_t* dst, uint8_t* src) {
void nfcv_emu_handle_packet( void nfcv_emu_handle_packet(
FuriHalNfcTxRxContext* tx_rx, FuriHalNfcTxRxContext* tx_rx,
FuriHalNfcDevData* nfc_data, FuriHalNfcDevData* nfc_data,
void* nfcv_data_in, void* nfcv_data_in) {
uint8_t* payload, NfcVData* nfcv_data = (NfcVData*)nfcv_data_in;
uint32_t payload_length) { NfcVEmuProtocolCtx* ctx = nfcv_data->emu_protocol_ctx;
if(!payload_length) {
if(nfcv_data->frame_length < 2) {
return; return;
} }
NfcVData* nfcv_data = (NfcVData*)nfcv_data_in; /* parse the frame data for the upcoming part 3 handling */
NfcVEmuProtocolCtx* ctx = &nfcv_data->emu_protocol_ctx; ctx->flags = nfcv_data->frame[0];
ctx->command = nfcv_data->frame[1];
ctx->frame = payload;
ctx->frame_length = payload_length;
ctx->flags = ctx->frame[0];
ctx->command = ctx->frame[1];
ctx->addressed = !(ctx->flags & RFAL_NFCV_REQ_FLAG_INVENTORY) && ctx->addressed = !(ctx->flags & RFAL_NFCV_REQ_FLAG_INVENTORY) &&
(ctx->flags & RFAL_NFCV_REQ_FLAG_ADDRESS); (ctx->flags & RFAL_NFCV_REQ_FLAG_ADDRESS);
ctx->advanced = (ctx->command >= 0xA0); ctx->advanced = (ctx->command >= 0xA0);
ctx->address_offset = 2 + (ctx->advanced ? 1 : 0); ctx->address_offset = 2 + (ctx->advanced ? 1 : 0);
ctx->payload_offset = ctx->address_offset + (ctx->addressed ? 8 : 0); ctx->payload_offset = ctx->address_offset + (ctx->addressed ? 8 : 0);
ctx->response_flags = NfcVSendFlagsNormal; ctx->response_flags = NfcVSendFlagsNormal;
ctx->send_time = nfcv_data->eof_timestamp + NFCV_FDT_FC(4130);
/* first give control to the card specific protocol handler */ /* standard behavior is implemented */
if(nfcv_data->emu_protocol_filter != NULL) {
if(nfcv_data->emu_protocol_filter(tx_rx, nfc_data, nfcv_data)) {
return;
}
}
if(ctx->addressed) { if(ctx->addressed) {
uint8_t* address = &ctx->frame[ctx->address_offset]; uint8_t* address = &nfcv_data->frame[ctx->address_offset];
if(nfcv_uidcmp(address, nfc_data->uid)) { if(nfcv_revuidcmp(address, nfc_data->uid)) {
FURI_LOG_D(TAG, "addressed command 0x%02X, but not for us:", ctx->command); FURI_LOG_D(TAG, "addressed command 0x%02X, but not for us:", ctx->command);
FURI_LOG_D( FURI_LOG_D(
TAG, TAG,
@@ -394,16 +420,25 @@ void nfcv_emu_handle_packet(
} }
} }
/* unfortunately our response is quicker than the original NFC tag which causes frame misses */ /* then give control to the card subtype specific protocol filter */
furi_delay_us(270); if(ctx->emu_protocol_filter != NULL) {
if(ctx->emu_protocol_filter(tx_rx, nfc_data, nfcv_data)) {
if(strlen(nfcv_data->last_command) > 0) {
FURI_LOG_D(
TAG, "Received command %s (handled by filter)", nfcv_data->last_command);
}
return;
}
}
switch(ctx->command) { switch(ctx->command) {
case ISO15693_INVENTORY: { case ISO15693_INVENTORY: {
ctx->response_buffer[0] = ISO15693_NOERROR; ctx->response_buffer[0] = ISO15693_NOERROR;
ctx->response_buffer[1] = nfcv_data->dsfid; ctx->response_buffer[1] = nfcv_data->dsfid;
nfcv_uidcpy(&ctx->response_buffer[2], nfc_data->uid); nfcv_revuidcpy(&ctx->response_buffer[2], nfc_data->uid);
nfcv_emu_send(tx_rx, nfcv_data, ctx->response_buffer, 10, ctx->response_flags); nfcv_emu_send(
tx_rx, nfcv_data, ctx->response_buffer, 10, ctx->response_flags, ctx->send_time);
snprintf(nfcv_data->last_command, sizeof(nfcv_data->last_command), "INVENTORY"); snprintf(nfcv_data->last_command, sizeof(nfcv_data->last_command), "INVENTORY");
break; break;
} }
@@ -420,23 +455,25 @@ void nfcv_emu_handle_packet(
case ISO15693_SELECT: { case ISO15693_SELECT: {
ctx->response_buffer[0] = ISO15693_NOERROR; ctx->response_buffer[0] = ISO15693_NOERROR;
nfcv_emu_send(tx_rx, nfcv_data, ctx->response_buffer, 1, ctx->response_flags); nfcv_emu_send(
tx_rx, nfcv_data, ctx->response_buffer, 1, ctx->response_flags, ctx->send_time);
snprintf(nfcv_data->last_command, sizeof(nfcv_data->last_command), "SELECT"); snprintf(nfcv_data->last_command, sizeof(nfcv_data->last_command), "SELECT");
break; break;
} }
case ISO15693_READ_MULTI_BLOCK: case ISO15693_READ_MULTI_BLOCK:
case ISO15693_READBLOCK: { case ISO15693_READBLOCK: {
uint8_t block = ctx->frame[ctx->payload_offset]; uint8_t block = nfcv_data->frame[ctx->payload_offset];
uint8_t blocks = 1; uint8_t blocks = 1;
if(ctx->command == ISO15693_READ_MULTI_BLOCK) { if(ctx->command == ISO15693_READ_MULTI_BLOCK) {
blocks = ctx->frame[ctx->payload_offset + 1] + 1; blocks = nfcv_data->frame[ctx->payload_offset + 1] + 1;
} }
if(block + blocks > nfcv_data->block_num) { if(block + blocks > nfcv_data->block_num) {
ctx->response_buffer[0] = ISO15693_ERROR_CMD_NOT_REC; ctx->response_buffer[0] = ISO15693_ERROR_CMD_NOT_REC;
nfcv_emu_send(tx_rx, nfcv_data, ctx->response_buffer, 1, ctx->response_flags); nfcv_emu_send(
tx_rx, nfcv_data, ctx->response_buffer, 1, ctx->response_flags, ctx->send_time);
} else { } else {
ctx->response_buffer[0] = ISO15693_NOERROR; ctx->response_buffer[0] = ISO15693_NOERROR;
memcpy( memcpy(
@@ -448,7 +485,8 @@ void nfcv_emu_handle_packet(
nfcv_data, nfcv_data,
ctx->response_buffer, ctx->response_buffer,
1 + nfcv_data->block_size * blocks, 1 + nfcv_data->block_size * blocks,
ctx->response_flags); ctx->response_flags,
ctx->send_time);
} }
snprintf(nfcv_data->last_command, sizeof(nfcv_data->last_command), "READ BLOCK %d", block); snprintf(nfcv_data->last_command, sizeof(nfcv_data->last_command), "READ BLOCK %d", block);
break; break;
@@ -456,29 +494,30 @@ void nfcv_emu_handle_packet(
case ISO15693_WRITE_MULTI_BLOCK: case ISO15693_WRITE_MULTI_BLOCK:
case ISO15693_WRITEBLOCK: { case ISO15693_WRITEBLOCK: {
uint8_t block = ctx->frame[ctx->payload_offset]; uint8_t block = nfcv_data->frame[ctx->payload_offset];
uint8_t blocks = 1; uint8_t blocks = 1;
uint8_t data_pos = 1; uint8_t data_pos = 1;
if(ctx->command == ISO15693_WRITE_MULTI_BLOCK) { if(ctx->command == ISO15693_WRITE_MULTI_BLOCK) {
blocks = ctx->frame[ctx->payload_offset + 1] + 1; blocks = nfcv_data->frame[ctx->payload_offset + 1] + 1;
data_pos++; data_pos++;
} }
uint8_t* data = &ctx->frame[ctx->payload_offset + data_pos]; uint8_t* data = &nfcv_data->frame[ctx->payload_offset + data_pos];
uint32_t data_len = nfcv_data->block_size * blocks; uint32_t data_len = nfcv_data->block_size * blocks;
if(block + blocks > nfcv_data->block_num || if(block + blocks > nfcv_data->block_num ||
ctx->payload_offset + data_len + 2 > payload_length) { ctx->payload_offset + data_len + 2 > nfcv_data->frame_length) {
ctx->response_buffer[0] = ISO15693_ERROR_CMD_NOT_REC; ctx->response_buffer[0] = ISO15693_ERROR_CMD_NOT_REC;
} else { } else {
ctx->response_buffer[0] = ISO15693_NOERROR; ctx->response_buffer[0] = ISO15693_NOERROR;
memcpy( memcpy(
&nfcv_data->data[nfcv_data->block_size * block], &nfcv_data->data[nfcv_data->block_size * block],
&ctx->frame[ctx->payload_offset + data_pos], &nfcv_data->frame[ctx->payload_offset + data_pos],
data_len); data_len);
} }
nfcv_emu_send(tx_rx, nfcv_data, ctx->response_buffer, 1, ctx->response_flags); nfcv_emu_send(
tx_rx, nfcv_data, ctx->response_buffer, 1, ctx->response_flags, ctx->send_time);
if(ctx->command == ISO15693_WRITE_MULTI_BLOCK) { if(ctx->command == ISO15693_WRITE_MULTI_BLOCK) {
snprintf( snprintf(
@@ -504,14 +543,15 @@ void nfcv_emu_handle_packet(
case ISO15693_GET_SYSTEM_INFO: { case ISO15693_GET_SYSTEM_INFO: {
ctx->response_buffer[0] = ISO15693_NOERROR; ctx->response_buffer[0] = ISO15693_NOERROR;
ctx->response_buffer[1] = 0x0F; ctx->response_buffer[1] = 0x0F;
nfcv_uidcpy(&ctx->response_buffer[2], nfc_data->uid); nfcv_revuidcpy(&ctx->response_buffer[2], nfc_data->uid);
ctx->response_buffer[10] = nfcv_data->dsfid; /* DSFID */ ctx->response_buffer[10] = nfcv_data->dsfid; /* DSFID */
ctx->response_buffer[11] = nfcv_data->afi; /* AFI */ ctx->response_buffer[11] = nfcv_data->afi; /* AFI */
ctx->response_buffer[12] = nfcv_data->block_num - 1; /* number of blocks */ ctx->response_buffer[12] = nfcv_data->block_num - 1; /* number of blocks */
ctx->response_buffer[13] = nfcv_data->block_size - 1; /* block size */ ctx->response_buffer[13] = nfcv_data->block_size - 1; /* block size */
ctx->response_buffer[14] = nfcv_data->ic_ref; /* IC reference */ ctx->response_buffer[14] = nfcv_data->ic_ref; /* IC reference */
nfcv_emu_send(tx_rx, nfcv_data, ctx->response_buffer, 15, ctx->response_flags); nfcv_emu_send(
tx_rx, nfcv_data, ctx->response_buffer, 15, ctx->response_flags, ctx->send_time);
snprintf(nfcv_data->last_command, sizeof(nfcv_data->last_command), "SYSTEMINFO"); snprintf(nfcv_data->last_command, sizeof(nfcv_data->last_command), "SYSTEMINFO");
break; break;
} }
@@ -533,15 +573,22 @@ void nfcv_emu_handle_packet(
void nfcv_emu_init(FuriHalNfcDevData* nfc_data, NfcVData* nfcv_data) { void nfcv_emu_init(FuriHalNfcDevData* nfc_data, NfcVData* nfcv_data) {
nfcv_emu_alloc(nfcv_data); nfcv_emu_alloc(nfcv_data);
rfal_platform_spi_acquire(); rfal_platform_spi_acquire();
/* configure for transparent and passive mode */
st25r3916ExecuteCommand(ST25R3916_CMD_STOP); st25r3916ExecuteCommand(ST25R3916_CMD_STOP);
/* set enable, rx_enable and field detector enable */
st25r3916WriteRegister(ST25R3916_REG_OP_CONTROL, 0xC3); st25r3916WriteRegister(ST25R3916_REG_OP_CONTROL, 0xC3);
/* target mode: ISO14443 passive mode */
st25r3916WriteRegister(ST25R3916_REG_MODE, 0x88); st25r3916WriteRegister(ST25R3916_REG_MODE, 0x88);
/* let us modulate the field using MOSI, read modulation using MISO */
st25r3916ExecuteCommand(ST25R3916_CMD_TRANSPARENT_MODE); st25r3916ExecuteCommand(ST25R3916_CMD_TRANSPARENT_MODE);
furi_hal_spi_bus_handle_deinit(&furi_hal_spi_bus_handle_nfc); furi_hal_spi_bus_handle_deinit(&furi_hal_spi_bus_handle_nfc);
/* if not set already, initialize the default protocol handler */
if(!nfcv_data->emu_protocol_ctx) {
nfcv_data->emu_protocol_ctx = malloc(sizeof(NfcVEmuProtocolCtx));
nfcv_data->emu_protocol_handler = &nfcv_emu_handle_packet; nfcv_data->emu_protocol_handler = &nfcv_emu_handle_packet;
}
FURI_LOG_D(TAG, "Starting NfcV emulation"); FURI_LOG_D(TAG, "Starting NfcV emulation");
FURI_LOG_D( FURI_LOG_D(
@@ -556,7 +603,7 @@ void nfcv_emu_init(FuriHalNfcDevData* nfc_data, NfcVData* nfcv_data) {
nfc_data->uid[6], nfc_data->uid[6],
nfc_data->uid[7]); nfc_data->uid[7]);
switch(nfcv_data->type) { switch(nfcv_data->sub_type) {
case NfcVTypeSlixL: case NfcVTypeSlixL:
FURI_LOG_D(TAG, " Card type: SLIX-L"); FURI_LOG_D(TAG, " Card type: SLIX-L");
slix_l_prepare(nfcv_data); slix_l_prepare(nfcv_data);
@@ -592,7 +639,10 @@ void nfcv_emu_deinit(NfcVData* nfcv_data) {
rfal_platform_spi_release(); rfal_platform_spi_release();
nfcv_emu_free(nfcv_data); nfcv_emu_free(nfcv_data);
pulse_reader_free(nfcv_data->emu_air.reader_signal); if(nfcv_data->emu_protocol_ctx) {
free(nfcv_data->emu_protocol_ctx);
nfcv_data->emu_protocol_ctx = NULL;
}
} }
bool nfcv_emu_loop( bool nfcv_emu_loop(
@@ -613,6 +663,7 @@ bool nfcv_emu_loop(
while(true) { while(true) {
uint32_t periods = uint32_t periods =
pulse_reader_receive(nfcv_data->emu_air.reader_signal, timeout_ms * 1000); pulse_reader_receive(nfcv_data->emu_air.reader_signal, timeout_ms * 1000);
uint32_t timestamp = DWT->CYCCNT;
if(periods == PULSE_READER_NO_EDGE) { if(periods == PULSE_READER_NO_EDGE) {
break; break;
@@ -754,6 +805,9 @@ bool nfcv_emu_loop(
FURI_LOG_D(TAG, "Resetting state machine, reason: '%s'", reset_reason); FURI_LOG_D(TAG, "Resetting state machine, reason: '%s'", reset_reason);
} else if(frame_state == NFCV_FRAME_STATE_EOF) { } else if(frame_state == NFCV_FRAME_STATE_EOF) {
nfcv_data->frame = frame_payload;
nfcv_data->frame_length = frame_pos;
nfcv_data->eof_timestamp = timestamp;
break; break;
} }
} }
@@ -764,7 +818,7 @@ bool nfcv_emu_loop(
if(tx_rx->sniff_rx) { if(tx_rx->sniff_rx) {
tx_rx->sniff_rx(frame_payload, frame_pos * 8, false, tx_rx->sniff_context); tx_rx->sniff_rx(frame_payload, frame_pos * 8, false, tx_rx->sniff_context);
} }
nfcv_data->emu_protocol_handler(tx_rx, nfc_data, nfcv_data, frame_payload, frame_pos); nfcv_data->emu_protocol_handler(tx_rx, nfc_data, nfcv_data);
pulse_reader_start(nfcv_data->emu_air.reader_signal); pulse_reader_start(nfcv_data->emu_air.reader_signal);
ret = true; ret = true;
} }

62
lib/nfc/protocols/nfcv.h
View File

@@ -8,6 +8,10 @@
#include "nfc_util.h" #include "nfc_util.h"
#include <furi_hal_nfc.h> #include <furi_hal_nfc.h>
#ifdef __cplusplus
extern "C" {
#endif
#define NFCV_FC (13560000.0f) /* MHz */ #define NFCV_FC (13560000.0f) /* MHz */
#define NFCV_RESP_SUBC1_PULSE_32 (1.0f / (NFCV_FC / 32) / 2.0f) /* 1.1799 µs */ #define NFCV_RESP_SUBC1_PULSE_32 (1.0f / (NFCV_FC / 32) / 2.0f) /* 1.1799 µs */
#define NFCV_RESP_SUBC1_UNMOD_256 (256.0f / NFCV_FC) /* 18.8791 µs */ #define NFCV_RESP_SUBC1_UNMOD_256 (256.0f / NFCV_FC) /* 18.8791 µs */
@@ -21,6 +25,10 @@
#define NFCV_BLOCK_SIZE 4 #define NFCV_BLOCK_SIZE 4
#define NFCV_MAX_DUMP_SIZE (NFCV_BLOCK_SIZE * NFCV_TOTAL_BLOCKS_MAX) #define NFCV_MAX_DUMP_SIZE (NFCV_BLOCK_SIZE * NFCV_TOTAL_BLOCKS_MAX)
/* helpers to calculate the send time based on DWT->CYCCNT */
#define NFCV_FDT_USEC(usec) (usec * 64)
#define NFCV_FDT_FC(ticks) (ticks * 6400 / 1356)
#define NFCV_FRAME_STATE_SOF1 0 #define NFCV_FRAME_STATE_SOF1 0
#define NFCV_FRAME_STATE_SOF2 1 #define NFCV_FRAME_STATE_SOF2 1
#define NFCV_FRAME_STATE_CODING_4 2 #define NFCV_FRAME_STATE_CODING_4 2
@@ -73,7 +81,7 @@ typedef enum {
NfcVTypeSlixS = 2, NfcVTypeSlixS = 2,
NfcVTypeSlixL = 3, NfcVTypeSlixL = 3,
NfcVTypeSlix2 = 4, NfcVTypeSlix2 = 4,
} NfcVType; } NfcVSubtype;
typedef enum { typedef enum {
NfcVSendFlagsNormal = 0, NfcVSendFlagsNormal = 0,
@@ -113,10 +121,16 @@ typedef struct {
DigitalSequence* nfcv_signal; DigitalSequence* nfcv_signal;
} NfcVEmuAir; } NfcVEmuAir;
typedef struct { typedef void (*NfcVEmuProtocolHandler)(
uint8_t* frame; /* ISO15693-2 incoming raw data from air layer */ FuriHalNfcTxRxContext* tx_rx,
uint8_t frame_length; /* ISO15693-2 length of incoming data */ FuriHalNfcDevData* nfc_data,
void* nfcv_data);
typedef bool (*NfcVEmuProtocolFilter)(
FuriHalNfcTxRxContext* tx_rx,
FuriHalNfcDevData* nfc_data,
void* nfcv_data);
typedef struct {
uint8_t flags; /* ISO15693-3 flags of the header as specified */ uint8_t flags; /* ISO15693-3 flags of the header as specified */
uint8_t command; /* ISO15693-3 command at offset 1 as specified */ uint8_t command; /* ISO15693-3 command at offset 1 as specified */
bool addressed; /* ISO15693-3 flags: addressed frame */ bool addressed; /* ISO15693-3 flags: addressed frame */
@@ -126,21 +140,13 @@ typedef struct {
uint8_t response_buffer[128]; /* pre-allocated response buffer */ uint8_t response_buffer[128]; /* pre-allocated response buffer */
NfcVSendFlags response_flags; /* flags to use when sending response */ NfcVSendFlags response_flags; /* flags to use when sending response */
uint32_t send_time; /* timestamp when to send the response */
NfcVEmuProtocolFilter emu_protocol_filter;
} NfcVEmuProtocolCtx; } NfcVEmuProtocolCtx;
typedef void (*NfcVEmuProtocolHandler)(
FuriHalNfcTxRxContext* tx_rx,
FuriHalNfcDevData* nfc_data,
void* nfcv_data,
uint8_t* payload,
uint32_t payload_length);
typedef bool (*NfcVEmuProtocolFilter)(
FuriHalNfcTxRxContext* tx_rx,
FuriHalNfcDevData* nfc_data,
void* nfcv_data);
typedef struct { typedef struct {
/* common ISO15693 fields */ /* common ISO15693 fields, being specified in ISO15693-3 */
uint8_t dsfid; uint8_t dsfid;
uint8_t afi; uint8_t afi;
uint8_t ic_ref; uint8_t ic_ref;
@@ -149,18 +155,24 @@ typedef struct {
uint8_t data[NFCV_MAX_DUMP_SIZE]; uint8_t data[NFCV_MAX_DUMP_SIZE];
/* specfic variant infos */ /* specfic variant infos */
NfcVType type; NfcVSubtype sub_type;
NfcVSubtypeData sub_data; NfcVSubtypeData sub_data;
NfcVAuthMethod auth_method;
/* precalced air level data */
NfcVEmuAir emu_air; NfcVEmuAir emu_air;
NfcVEmuProtocolCtx emu_protocol_ctx;
uint8_t* frame; /* ISO15693-2 incoming raw data from air layer */
uint8_t frame_length; /* ISO15693-2 length of incoming data */
uint32_t eof_timestamp; /* ISO15693-2 EOF timestamp, read from DWT->CYCCNT */
/* handler for the protocol layer as specified in ISO15693-3 */
NfcVEmuProtocolHandler emu_protocol_handler; NfcVEmuProtocolHandler emu_protocol_handler;
NfcVEmuProtocolFilter emu_protocol_filter; void* emu_protocol_ctx;
/* runtime data */ /* runtime data */
char last_command[128]; char last_command[128];
char error[32]; char error[32];
NfcVAuthMethod auth_method;
bool auth_success;
} NfcVData; } NfcVData;
typedef struct { typedef struct {
@@ -175,7 +187,6 @@ bool nfcv_read_card(NfcVReader* reader, FuriHalNfcDevData* nfc_data, NfcVData* d
void nfcv_emu_init(FuriHalNfcDevData* nfc_data, NfcVData* nfcv_data); void nfcv_emu_init(FuriHalNfcDevData* nfc_data, NfcVData* nfcv_data);
void nfcv_emu_deinit(NfcVData* nfcv_data); void nfcv_emu_deinit(NfcVData* nfcv_data);
bool nfcv_emu_loop( bool nfcv_emu_loop(
FuriHalNfcTxRxContext* tx_rx, FuriHalNfcTxRxContext* tx_rx,
FuriHalNfcDevData* nfc_data, FuriHalNfcDevData* nfc_data,
@@ -186,4 +197,9 @@ void nfcv_emu_send(
NfcVData* nfcv, NfcVData* nfcv,
uint8_t* data, uint8_t* data,
uint8_t length, uint8_t length,
NfcVSendFlags flags); NfcVSendFlags flags,
uint32_t send_time);
#ifdef __cplusplus
}
#endif

27
lib/nfc/protocols/slix.c
View File

@@ -147,7 +147,7 @@ bool slix_generic_protocol_filter(
furi_assert(nfcv_data_in); furi_assert(nfcv_data_in);
NfcVData* nfcv_data = (NfcVData*)nfcv_data_in; NfcVData* nfcv_data = (NfcVData*)nfcv_data_in;
NfcVEmuProtocolCtx* ctx = &nfcv_data->emu_protocol_ctx; NfcVEmuProtocolCtx* ctx = nfcv_data->emu_protocol_ctx;
NfcVSlixData* slix = &nfcv_data->sub_data.slix; NfcVSlixData* slix = &nfcv_data->sub_data.slix;
if(slix->privacy && ctx->command != ISO15693_CMD_NXP_GET_RANDOM_NUMBER && if(slix->privacy && ctx->command != ISO15693_CMD_NXP_GET_RANDOM_NUMBER &&
@@ -172,7 +172,8 @@ bool slix_generic_protocol_filter(
ctx->response_buffer[1] = slix->rand[1]; ctx->response_buffer[1] = slix->rand[1];
ctx->response_buffer[2] = slix->rand[0]; ctx->response_buffer[2] = slix->rand[0];
nfcv_emu_send(tx_rx, nfcv_data, ctx->response_buffer, 3, ctx->response_flags); nfcv_emu_send(
tx_rx, nfcv_data, ctx->response_buffer, 3, ctx->response_flags, ctx->send_time);
snprintf( snprintf(
nfcv_data->last_command, nfcv_data->last_command,
sizeof(nfcv_data->last_command), sizeof(nfcv_data->last_command),
@@ -185,13 +186,13 @@ bool slix_generic_protocol_filter(
} }
case ISO15693_CMD_NXP_SET_PASSWORD: { case ISO15693_CMD_NXP_SET_PASSWORD: {
uint8_t password_id = ctx->frame[ctx->payload_offset]; uint8_t password_id = nfcv_data->frame[ctx->payload_offset];
if(!(password_id & password_supported)) { if(!(password_id & password_supported)) {
break; break;
} }
uint8_t* password_xored = &ctx->frame[ctx->payload_offset + 1]; uint8_t* password_xored = &nfcv_data->frame[ctx->payload_offset + 1];
uint8_t* rand = slix->rand; uint8_t* rand = slix->rand;
uint8_t* password = NULL; uint8_t* password = NULL;
uint8_t password_rcv[4]; uint8_t password_rcv[4];
@@ -241,7 +242,8 @@ bool slix_generic_protocol_filter(
break; break;
} }
ctx->response_buffer[0] = ISO15693_NOERROR; ctx->response_buffer[0] = ISO15693_NOERROR;
nfcv_emu_send(tx_rx, nfcv_data, ctx->response_buffer, 1, ctx->response_flags); nfcv_emu_send(
tx_rx, nfcv_data, ctx->response_buffer, 1, ctx->response_flags, ctx->send_time);
snprintf( snprintf(
nfcv_data->last_command, nfcv_data->last_command,
sizeof(nfcv_data->last_command), sizeof(nfcv_data->last_command),
@@ -264,7 +266,8 @@ bool slix_generic_protocol_filter(
case ISO15693_CMD_NXP_ENABLE_PRIVACY: { case ISO15693_CMD_NXP_ENABLE_PRIVACY: {
ctx->response_buffer[0] = ISO15693_NOERROR; ctx->response_buffer[0] = ISO15693_NOERROR;
nfcv_emu_send(tx_rx, nfcv_data, ctx->response_buffer, 1, ctx->response_flags); nfcv_emu_send(
tx_rx, nfcv_data, ctx->response_buffer, 1, ctx->response_flags, ctx->send_time);
snprintf( snprintf(
nfcv_data->last_command, nfcv_data->last_command,
sizeof(nfcv_data->last_command), sizeof(nfcv_data->last_command),
@@ -309,7 +312,8 @@ void slix_l_prepare(NfcVData* nfcv_data) {
FURI_LOG_D(TAG, " EAS pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_eas, 4)); FURI_LOG_D(TAG, " EAS pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_eas, 4));
FURI_LOG_D(TAG, " Privacy mode: %s", nfcv_data->sub_data.slix.privacy ? "ON" : "OFF"); FURI_LOG_D(TAG, " Privacy mode: %s", nfcv_data->sub_data.slix.privacy ? "ON" : "OFF");
nfcv_data->emu_protocol_filter = &slix_l_protocol_filter; NfcVEmuProtocolCtx* ctx = nfcv_data->emu_protocol_ctx;
ctx->emu_protocol_filter = &slix_l_protocol_filter;
} }
bool slix_s_protocol_filter( bool slix_s_protocol_filter(
@@ -338,7 +342,8 @@ void slix_s_prepare(NfcVData* nfcv_data) {
FURI_LOG_D(TAG, " EAS pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_eas, 4)); FURI_LOG_D(TAG, " EAS pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_eas, 4));
FURI_LOG_D(TAG, " Privacy mode: %s", nfcv_data->sub_data.slix.privacy ? "ON" : "OFF"); FURI_LOG_D(TAG, " Privacy mode: %s", nfcv_data->sub_data.slix.privacy ? "ON" : "OFF");
nfcv_data->emu_protocol_filter = &slix_s_protocol_filter; NfcVEmuProtocolCtx* ctx = nfcv_data->emu_protocol_ctx;
ctx->emu_protocol_filter = &slix_s_protocol_filter;
} }
bool slix_protocol_filter( bool slix_protocol_filter(
@@ -367,7 +372,8 @@ void slix_prepare(NfcVData* nfcv_data) {
FURI_LOG_D(TAG, " EAS pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_eas, 4)); FURI_LOG_D(TAG, " EAS pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_eas, 4));
FURI_LOG_D(TAG, " Privacy mode: %s", nfcv_data->sub_data.slix.privacy ? "ON" : "OFF"); FURI_LOG_D(TAG, " Privacy mode: %s", nfcv_data->sub_data.slix.privacy ? "ON" : "OFF");
nfcv_data->emu_protocol_filter = &slix_protocol_filter; NfcVEmuProtocolCtx* ctx = nfcv_data->emu_protocol_ctx;
ctx->emu_protocol_filter = &slix_protocol_filter;
} }
bool slix2_protocol_filter( bool slix2_protocol_filter(
@@ -396,5 +402,6 @@ void slix2_prepare(NfcVData* nfcv_data) {
FURI_LOG_D(TAG, " EAS pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_eas, 4)); FURI_LOG_D(TAG, " EAS pass: 0x%08lX", slix_read_be(nfcv_data->sub_data.slix.key_eas, 4));
FURI_LOG_D(TAG, " Privacy mode: %s", nfcv_data->sub_data.slix.privacy ? "ON" : "OFF"); FURI_LOG_D(TAG, " Privacy mode: %s", nfcv_data->sub_data.slix.privacy ? "ON" : "OFF");
nfcv_data->emu_protocol_filter = &slix2_protocol_filter; NfcVEmuProtocolCtx* ctx = nfcv_data->emu_protocol_ctx;
ctx->emu_protocol_filter = &slix2_protocol_filter;
} }

3
lib/pulse_reader/pulse_reader.c
View File

@@ -198,8 +198,5 @@ uint32_t pulse_reader_receive(PulseReader* signal, int timeout_us) {
if(elapsed > timeout_ticks) { if(elapsed > timeout_ticks) {
return PULSE_READER_NO_EDGE; return PULSE_READER_NO_EDGE;
} }
//furi_delay_ms(0);
} while(true); } while(true);
} }