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Added a new custom APDU (88h) for setting and retrieving datetime.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2022-04-04 15:48:04 +02:00
parent 13d17fc4f7
commit d49e7be972
2 changed files with 43 additions and 13 deletions
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39
src/hsm/sc_hsm.c
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@@ -1717,18 +1717,33 @@ static int cmd_derive_asym() {
static int cmd_datetime() {
if (P1(apdu) != 0x0 || P2(apdu) != 0x0)
return SW_INCORRECT_P1P2();
if (apdu.cmd_apdu_data_len != 8)
return SW_WRONG_LENGTH();
datetime_t dt;
dt.year = (apdu.cmd_apdu_data[0] << 8) | (apdu.cmd_apdu_data[1]);
dt.month = apdu.cmd_apdu_data[2];
dt.day = apdu.cmd_apdu_data[3];
dt.dotw = apdu.cmd_apdu_data[4];
dt.hour = apdu.cmd_apdu_data[5];
dt.min = apdu.cmd_apdu_data[6];
dt.sec = apdu.cmd_apdu_data[7];
if (!rtc_set_datetime(&dt))
return SW_WRONG_DATA();
if (apdu.cmd_apdu_data_len == 0) {
datetime_t dt;
if (!rtc_get_datetime(&dt))
return SW_EXEC_ERROR();
res_APDU[res_APDU_size++] = dt.year >> 8;
res_APDU[res_APDU_size++] = dt.year & 0xff;
res_APDU[res_APDU_size++] = dt.month;
res_APDU[res_APDU_size++] = dt.day;
res_APDU[res_APDU_size++] = dt.dotw;
res_APDU[res_APDU_size++] = dt.hour;
res_APDU[res_APDU_size++] = dt.min;
res_APDU[res_APDU_size++] = dt.sec;
}
else {
if (apdu.cmd_apdu_data_len != 8)
return SW_WRONG_LENGTH();
datetime_t dt;
dt.year = (apdu.cmd_apdu_data[0] << 8) | (apdu.cmd_apdu_data[1]);
dt.month = apdu.cmd_apdu_data[2];
dt.day = apdu.cmd_apdu_data[3];
dt.dotw = apdu.cmd_apdu_data[4];
dt.hour = apdu.cmd_apdu_data[5];
dt.min = apdu.cmd_apdu_data[6];
dt.sec = apdu.cmd_apdu_data[7];
if (!rtc_set_datetime(&dt))
return SW_WRONG_DATA();
}
return SW_OK();
}