mirror of
https://github.com/polhenarejos/pico-openpgp.git
synced 2026-04-15 03:52:56 +02:00
87 lines
2.9 KiB
C
87 lines
2.9 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 Affero 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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* Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "openpgp.h"
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int cmd_select(void) {
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uint8_t p1 = P1(apdu);
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uint8_t p2 = P2(apdu);
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file_t *pe = NULL;
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uint16_t fid = 0x0;
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if (apdu.nc >= 2) {
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fid = get_uint16_t_be(apdu.data);
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}
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if (!pe) {
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if (p1 == 0x0) { //Select MF, DF or EF - File identifier or absent
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if (apdu.nc == 0) {
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pe = (file_t *) MF;
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//ac_fini();
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}
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else if (apdu.nc == 2) {
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if (!(pe = search_by_fid(fid, NULL, SPECIFY_ANY))) {
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return SW_REFERENCE_NOT_FOUND();
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}
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}
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}
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else if (p1 == 0x01) { //Select child DF - DF identifier
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if (!(pe = search_by_fid(fid, currentDF, SPECIFY_DF))) {
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return SW_REFERENCE_NOT_FOUND();
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}
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}
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else if (p1 == 0x02) { //Select EF under the current DF - EF identifier
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if (!(pe = search_by_fid(fid, currentDF, SPECIFY_EF))) {
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return SW_REFERENCE_NOT_FOUND();
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}
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}
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else if (p1 == 0x03) { //Select parent DF of the current DF - Absent
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if (apdu.nc != 0) {
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return SW_REFERENCE_NOT_FOUND();
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}
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}
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else if (p1 == 0x04) { //Select by DF name - e.g., [truncated] application identifier
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if (!(pe = search_by_name(apdu.data, apdu.nc))) {
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return SW_REFERENCE_NOT_FOUND();
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}
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if (card_terminated) {
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return set_res_sw(0x62, 0x85);
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}
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}
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else if (p1 == 0x08) { //Select from the MF - Path without the MF identifier
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if (!(pe = search_by_path(apdu.data, apdu.nc, MF))) {
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return SW_REFERENCE_NOT_FOUND();
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}
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}
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else if (p1 == 0x09) { //Select from the current DF - Path without the current DF identifier
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if (!(pe = search_by_path(apdu.data, apdu.nc, currentDF))) {
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return SW_REFERENCE_NOT_FOUND();
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}
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}
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}
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if ((p2 & 0xfc) == 0x00 || (p2 & 0xfc) == 0x04) {
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if ((p2 & 0xfc) == 0x04) {
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process_fci(pe, 0);
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}
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}
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else {
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return SW_INCORRECT_P1P2();
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}
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select_file(pe);
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return SW_OK();
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}
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