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nfc: Add NTAG authentication event to emulation

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This commit is contained in:
Yukai Li
2022-07-26 12:29:17 -06:00
parent 299ec9643e
commit 71035dc3ae
4 changed files with 20 additions and 1 deletions
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8
lib/nfc/protocols/mifare_ultralight.c
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@@ -1246,6 +1246,7 @@ void mf_ul_prepare_emulation(MfUltralightEmulator* emulator, MfUltralightData* d
emulator->config = mf_ultralight_get_config_pages(&emulator->data);
emulator->page_num = emulator->data.data_size / 4;
emulator->data_changed = false;
memset(&emulator->auth_attempt, 0, sizeof(MfUltralightAuth));
mf_ul_reset_emulation(emulator, true);
}
@@ -1706,6 +1707,13 @@ bool mf_ul_prepare_emulation_response(
} else if(cmd == MF_UL_AUTH) {
if(emulator->supported_features & MfUltralightSupportAuth) {
if(buff_rx_len == (1 + 4) * 8) {
// Record password sent by PCD
memcpy(
emulator->auth_attempt.pwd.raw,
&buff_rx[1],
sizeof(emulator->auth_attempt.pwd.raw));
emulator->auth_attempted = true;
uint16_t scaled_authlim = mf_ultralight_calc_auth_count(&emulator->data);
if(scaled_authlim != 0 && emulator->data.curr_authlim >= scaled_authlim) {
if(emulator->data.curr_authlim != UINT16_MAX) {

2
lib/nfc/protocols/mifare_ultralight.h
View File

@@ -185,6 +185,8 @@ typedef struct {
bool sector_select_cmd_started;
bool ntag_i2c_plus_sector3_lockout;
bool read_counter_incremented;
bool auth_attempted;
MfUltralightAuth auth_attempt;
} MfUltralightEmulator;
void mf_ul_reset(MfUltralightData* data);