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add version check

pull/390/head
Conor Patrick 2019-10-29 08:22:11 -04:00
rodzic 9d3e8c06fc
commit da31f984dd
1 zmienionych plików z 14 dodań i 7 usunięć
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21
fido2/ctaphid.c
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@ -779,19 +779,26 @@ uint8_t ctaphid_custom_command(int len, CTAP_RESPONSE * ctap_resp, CTAPHID_WRITE
case CTAPHID_LOADKEY:
/**
* Load external key. Useful for enabling backups.
* bytes: 4 96
* payload: | counter_increase (BE) | master_key |
* bytes: 4 4 96
* payload: version [maj rev patch RFU]| counter_replacement (BE) | master_key |
*
* Counter should be increased by a large amount, e.g. (0x10000000)
* to outdo any previously lost/broken keys.
*/
printf1(TAG_HID,"CTAPHID_LOADKEY\n");
if (len != 100)
if (len != 104)
{
printf2(TAG_ERR,"Error, invalid length.\n");
ctaphid_send_error(wb->cid, CTAP1_ERR_INVALID_LENGTH);
return 1;
}
param = ctap_buffer[0] << 16;
param |= ctap_buffer[1] << 8;
param |= ctap_buffer[2] << 0;
if (param != 0){
ctaphid_send_error(wb->cid, CTAP1_ERR_INVALID_LENGTH);
return CTAP2_ERR_UNSUPPORTED_OPTION;
}
// Ask for THREE button presses
if (ctap_user_presence_test(8000) > 0)
@ -799,10 +806,10 @@ uint8_t ctaphid_custom_command(int len, CTAP_RESPONSE * ctap_resp, CTAPHID_WRITE
if (ctap_user_presence_test(2000) > 0)
{
ctap_load_external_keys(ctap_buffer + 4);
param = ctap_buffer[3];
param |= ctap_buffer[2] << 8;
param |= ctap_buffer[1] << 16;
param |= ctap_buffer[0] << 24;
param = ctap_buffer[7];
param |= ctap_buffer[6] << 8;
param |= ctap_buffer[5] << 16;
param |= ctap_buffer[4] << 24;
ctap_atomic_count(param);
wb->bcnt = 0;