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Added support for OATH rename.

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Fixes #107.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2025-02-17 19:54:56 +01:00
parent 7c4a020dc1
commit 250de29c3c
1 changed files with 43 additions and 0 deletions
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43
src/fido/oath.c
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@@ -584,10 +584,52 @@ int cmd_verify_hotp() {
return SW_OK();
}
int cmd_rename() {
asn1_ctx_t ctxi, name = { 0 }, new_name = { 0 };
if (apdu.data[0] != TAG_NAME) {
return SW_WRONG_DATA();
}
asn1_ctx_init(apdu.data, (uint16_t)apdu.nc, &ctxi);
if (asn1_find_tag(&ctxi, TAG_NAME, &name) == false) {
return SW_WRONG_DATA();
}
asn1_ctx_init(name.data + name.len, (uint16_t)(apdu.nc - (name.data + name.len - apdu.data)), &ctxi);
if (asn1_find_tag(&ctxi, TAG_NAME, &new_name) == false) {
return SW_WRONG_DATA();
}
file_t *ef = find_oath_cred(name.data, name.len);
if (file_has_data(ef) == false) {
return SW_DATA_INVALID();
}
uint8_t *fdata = file_get_data(ef);
uint16_t fsize = file_get_size(ef);
asn1_ctx_init(fdata, fsize, &ctxi);
if (asn1_find_tag(&ctxi, TAG_NAME, &name) == false) {
return SW_WRONG_DATA();
}
uint8_t *new_data;
if (new_name.len > name.len) {
new_data = (uint8_t *) calloc(1, file_get_size(ef) + new_name.len - name.len);
}
else {
new_data = (uint8_t *) calloc(1, file_get_size(ef));
}
memcpy(new_data, fdata, name.data - fdata);
*(new_data + (name.data - fdata) - 1) = new_name.len;
memcpy(new_data + (name.data - fdata), new_name.data, new_name.len);
memcpy(new_data + (name.data - fdata) + new_name.len, name.data + name.len, fsize - (name.data + name.len - fdata));
file_put_data(ef, new_data, fsize + new_name.len - name.len);
low_flash_available();
free(new_data);
return SW_OK();
}
#define INS_PUT 0x01
#define INS_DELETE 0x02
#define INS_SET_CODE 0x03
#define INS_RESET 0x04
#define INS_RENAME 0x05
#define INS_LIST 0xa1
#define INS_CALCULATE 0xa2
#define INS_VALIDATE 0xa3
@@ -603,6 +645,7 @@ static const cmd_t cmds[] = {
{ INS_DELETE, cmd_delete },
{ INS_SET_CODE, cmd_set_code },
{ INS_RESET, cmd_reset },
{ INS_RENAME, cmd_rename },
{ INS_LIST, cmd_list },
{ INS_VALIDATE, cmd_validate },
{ INS_CALCULATE, cmd_calculate },