55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/*
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* This file is part of the Pico OpenPGP distribution (https://github.com/polhenarejos/pico-openpgp).
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* Copyright (c) 2022 Pol Henarejos.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "openpgp.h"
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int cmd_select_data() {
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file_t *ef = NULL;
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uint16_t fid = 0x0;
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if (P2(apdu) != 0x4) {
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return SW_WRONG_P1P2();
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}
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if (apdu.data[0] != 0x60) {
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return SW_WRONG_DATA();
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}
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if (apdu.nc != apdu.data[1] + 2 || apdu.nc < 5) {
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return SW_WRONG_LENGTH();
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}
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if (apdu.data[2] != 0x5C) {
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return SW_WRONG_DATA();
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}
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if (apdu.data[3] == 2) {
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fid = (apdu.data[4] << 8) | apdu.data[5];
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}
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else {
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fid = apdu.data[4];
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}
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if (!(ef = search_by_fid(fid, NULL, SPECIFY_EF))) {
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return SW_REFERENCE_NOT_FOUND();
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}
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if (!authenticate_action(ef, ACL_OP_UPDATE_ERASE)) {
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return SW_SECURITY_STATUS_NOT_SATISFIED();
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}
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fid &= ~0x6000; //Now get private DO
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fid += P1(apdu);
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if (!(ef = search_by_fid(fid, NULL, SPECIFY_EF))) {
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return SW_REFERENCE_NOT_FOUND();
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}
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select_file(ef);
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return SW_OK();
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}
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