mirror of
https://salsa.debian.org/gnuk-team/gnuk/gnuk.git
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1461 lines
36 KiB
C
1461 lines
36 KiB
C
/*
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* usb-icc.c -- USB CCID protocol handling
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*
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* Copyright (C) 2010, 2011, 2012, 2013 Free Software Initiative of Japan
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* Author: NIIBE Yutaka <gniibe@fsij.org>
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*
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* This file is a part of Gnuk, a GnuPG USB Token implementation.
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*
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* Gnuk is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Gnuk is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* 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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*/
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#include <stdint.h>
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#include <string.h>
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#include <chopstx.h>
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#include <eventflag.h>
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#include "config.h"
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#include "gnuk.h"
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#include "usb_lld.h"
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/*
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* USB buffer size of USB-CCID driver
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*/
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#if MAX_RES_APDU_DATA_SIZE > MAX_CMD_APDU_DATA_SIZE
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#define USB_BUF_SIZE (MAX_RES_APDU_DATA_SIZE+5)
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#else
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#define USB_BUF_SIZE (MAX_CMD_APDU_DATA_SIZE+5)
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#endif
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struct apdu apdu;
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/*
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* There are three layers in USB CCID implementation
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*
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* +-------------------+
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* | Application Layer |
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* +-------------------+
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* ^ command APDU |
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* | v response APDU
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* +-------------------+
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* | CCID Layer |
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* +-------------------+
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* ^ CCID PC_to_RDR | CCID RDR_to_PC
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* | Message v Message
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* +-------------------+
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* | USB Layer |
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* +-------------------+
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* ^ USB | USB
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* | Bulk-OUT Packet v Bulk-IN Packet
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*
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*/
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/*
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* USB layer data structures
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*/
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struct ep_in {
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uint8_t ep_num;
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uint8_t tx_done;
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void (*notify) (struct ep_in *epi);
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const uint8_t *buf;
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size_t cnt;
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size_t buf_len;
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void *priv;
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void (*next_buf) (struct ep_in *epi, size_t len);
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};
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static void epi_init (struct ep_in *epi, int ep_num,
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void (*notify) (struct ep_in *epi), void *priv)
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{
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epi->ep_num = ep_num;
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epi->tx_done = 0;
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epi->notify = notify;
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epi->buf = NULL;
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epi->cnt = 0;
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epi->buf_len = 0;
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epi->priv = priv;
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epi->next_buf = NULL;
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}
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struct ep_out {
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uint8_t ep_num;
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uint8_t err;
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void (*notify) (struct ep_out *epo);
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uint8_t *buf;
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size_t cnt;
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size_t buf_len;
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void *priv;
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void (*next_buf) (struct ep_out *epo, size_t len);
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int (*end_rx) (struct ep_out *epo, size_t orig_len);
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};
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static struct ep_out endpoint_out;
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static struct ep_in endpoint_in;
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static void epo_init (struct ep_out *epo, int ep_num,
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void (*notify) (struct ep_out *epo), void *priv)
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{
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epo->ep_num = ep_num;
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epo->err = 0;
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epo->notify = notify;
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epo->buf = NULL;
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epo->cnt = 0;
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epo->buf_len = 0;
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epo->priv = priv;
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epo->next_buf = NULL;
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epo->end_rx = NULL;
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}
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/*
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* CCID Layer
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*/
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/*
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* Buffer of USB communication: for both of RX and TX
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*
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* The buffer will be filled by multiple RX packets (Bulk-OUT)
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* or will be used for multiple TX packets (Bulk-IN)
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*/
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static uint8_t icc_buffer[USB_BUF_SIZE];
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#define ICC_SET_PARAMS 0x61 /* non-ICCD command */
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#define ICC_POWER_ON 0x62
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#define ICC_POWER_OFF 0x63
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#define ICC_SLOT_STATUS 0x65 /* non-ICCD command */
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#define ICC_SECURE 0x69 /* non-ICCD command */
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#define ICC_GET_PARAMS 0x6C /* non-ICCD command */
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#define ICC_XFR_BLOCK 0x6F
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#define ICC_DATA_BLOCK_RET 0x80
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#define ICC_SLOT_STATUS_RET 0x81 /* non-ICCD result */
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#define ICC_PARAMS_RET 0x82 /* non-ICCD result */
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#define ICC_MSG_SEQ_OFFSET 6
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#define ICC_MSG_STATUS_OFFSET 7
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#define ICC_MSG_ERROR_OFFSET 8
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#define ICC_MSG_CHAIN_OFFSET 9
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#define ICC_MSG_DATA_OFFSET 10 /* == ICC_MSG_HEADER_SIZE */
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#define ICC_MAX_MSG_DATA_SIZE USB_BUF_SIZE
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#define ICC_STATUS_RUN 0x00
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#define ICC_STATUS_PRESENT 0x01
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#define ICC_STATUS_NOTPRESENT 0x02
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#define ICC_CMD_STATUS_OK 0x00
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#define ICC_CMD_STATUS_ERROR 0x40
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#define ICC_CMD_STATUS_TIMEEXT 0x80
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#define ICC_ERROR_XFR_OVERRUN 0xFC
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/*
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* Since command-byte is at offset 0,
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* error with offset 0 means "command not supported".
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*/
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#define ICC_OFFSET_CMD_NOT_SUPPORTED 0
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#define ICC_OFFSET_DATA_LEN 1
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#define ICC_OFFSET_PARAM 8
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struct icc_header {
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uint8_t msg_type;
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uint32_t data_len;
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uint8_t slot;
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uint8_t seq;
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uint8_t rsvd;
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uint16_t param;
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} __attribute__((packed));
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enum icc_state *icc_state_p;
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/* Data structure handled by CCID layer */
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struct ccid {
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enum icc_state icc_state;
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uint8_t state;
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uint8_t *p;
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size_t len;
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uint8_t err;
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struct icc_header icc_header;
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uint8_t sw1sw2[2];
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uint8_t chained_cls_ins_p1_p2[4];
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/* lower layer */
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struct ep_out *epo;
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struct ep_in *epi;
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/* from both layers */
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struct eventflag ccid_comm;
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/* upper layer */
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struct eventflag openpgp_comm;
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chopstx_t application;
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struct apdu *a;
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};
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/*
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* APDU_STATE_WAIT_COMMAND +---------+
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* | | | |
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* | v v |
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* | APDU_STATE_COMMAND_CHAINING --+
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* | |
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* v v
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* APDU_STATE_COMMAND_RECEIVED
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* |
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* v
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* ===================
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* | Process COMMAND |
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* ===================
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* |
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* v
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* +-----+----------+ +---------+
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* | | | |
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* v v v |
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* APDU_STATE_RESULT <---- APDU_STATE_RESULT_GET_RESPONSE --+
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* |
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* |
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* v
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* APDU_STATE_WAIT_COMMAND
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*/
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#define APDU_STATE_WAIT_COMMAND 0
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#define APDU_STATE_COMMAND_CHAINING 1
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#define APDU_STATE_COMMAND_RECEIVED 2
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#define APDU_STATE_RESULT 3
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#define APDU_STATE_RESULT_GET_RESPONSE 4
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static void ccid_reset (struct ccid *c)
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{
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c->err = 0;
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c->state = APDU_STATE_WAIT_COMMAND;
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c->p = c->a->cmd_apdu_data;
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c->len = MAX_CMD_APDU_DATA_SIZE;
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c->a->cmd_apdu_data_len = 0;
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c->a->expected_res_size = 0;
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}
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static void ccid_init (struct ccid *c, struct ep_in *epi, struct ep_out *epo,
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struct apdu *a, chopstx_t thd)
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{
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icc_state_p = &c->icc_state;
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c->icc_state = ICC_STATE_START;
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c->state = APDU_STATE_WAIT_COMMAND;
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/*
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* Note: a is not yet initialized yet, we can't use c->a->cmd_apdu_data here.
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*/
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c->p = &icc_buffer[5];
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c->len = MAX_CMD_APDU_DATA_SIZE;
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c->err = 0;
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memset (&c->icc_header, 0, sizeof (struct icc_header));
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c->sw1sw2[0] = 0x90;
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c->sw1sw2[1] = 0x00;
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eventflag_init (&c->ccid_comm, thd);
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c->application = 0;
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eventflag_init (&c->openpgp_comm, 0);
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c->epi = epi;
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c->epo = epo;
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c->a = a;
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}
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/*
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* Application layer
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*/
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/*
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* USB-CCID communication could be considered "half duplex".
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*
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* While the device is sending something, there is no possibility for
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* the device to receive anything.
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*
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* While the device is receiving something, there is no possibility
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* for the device to send anything.
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*
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* Thus, the buffer can be shared for RX and TX.
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*
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* Exception: When we support ABORT of CCID, it is possible to receive
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* ABORT Class Specific Request to control pipe while we are
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* receiving/sending something at OUT/IN endpoint.
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*
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*/
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#define CMD_APDU_HEAD_SIZE 5
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static void apdu_init (struct apdu *a)
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{
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a->seq = 0; /* will be set by lower layer */
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a->cmd_apdu_head = &icc_buffer[0];
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a->cmd_apdu_data = &icc_buffer[5];
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a->cmd_apdu_data_len = 0; /* will be set by lower layer */
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a->expected_res_size = 0; /* will be set by lower layer */
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a->sw = 0x9000; /* will be set by upper layer */
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a->res_apdu_data = &icc_buffer[5]; /* will be set by upper layer */
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a->res_apdu_data_len = 0; /* will be set by upper layer */
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}
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static void notify_tx (struct ep_in *epi)
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{
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struct ccid *c = (struct ccid *)epi->priv;
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/* The sequence of Bulk-IN transactions finished */
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eventflag_signal (&c->ccid_comm, EV_TX_FINISHED);
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}
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static void no_buf (struct ep_in *epi, size_t len)
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{
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(void)len;
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epi->buf = NULL;
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epi->cnt = 0;
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epi->buf_len = 0;
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}
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static void set_sw1sw2 (struct ccid *c, size_t chunk_len)
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{
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if (c->a->expected_res_size >= c->len)
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{
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c->sw1sw2[0] = 0x90;
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c->sw1sw2[1] = 0x00;
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}
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else
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{
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c->sw1sw2[0] = 0x61;
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if (c->len - chunk_len >= 256)
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c->sw1sw2[1] = 0;
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else
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c->sw1sw2[1] = (uint8_t)(c->len - chunk_len);
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}
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}
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static void get_sw1sw2 (struct ep_in *epi, size_t len)
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{
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struct ccid *c = (struct ccid *)epi->priv;
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(void)len;
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epi->buf = c->sw1sw2;
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epi->cnt = 0;
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epi->buf_len = 2;
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epi->next_buf = no_buf;
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}
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/*
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* Tx done callback
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*/
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void
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EP1_IN_Callback (void)
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{
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struct ep_in *epi = &endpoint_in;
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if (epi->buf == NULL)
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if (epi->tx_done)
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epi->notify (epi);
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else
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{
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epi->tx_done = 1;
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usb_lld_tx_enable (epi->ep_num, 0); /* send ZLP */
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}
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else
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{
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int tx_size = 0;
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size_t remain = USB_LL_BUF_SIZE;
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int offset = 0;
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while (epi->buf)
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if (epi->buf_len < remain)
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{
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usb_lld_txcpy (epi->buf, epi->ep_num, offset, epi->buf_len);
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offset += epi->buf_len;
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remain -= epi->buf_len;
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tx_size += epi->buf_len;
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epi->next_buf (epi, remain); /* Update epi->buf, cnt, buf_len */
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}
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else
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{
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usb_lld_txcpy (epi->buf, epi->ep_num, offset, remain);
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epi->buf += remain;
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epi->cnt += remain;
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epi->buf_len -= remain;
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tx_size += remain;
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break;
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}
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if (tx_size < USB_LL_BUF_SIZE)
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epi->tx_done = 1;
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usb_lld_tx_enable (epi->ep_num, tx_size);
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}
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}
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static void notify_icc (struct ep_out *epo)
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{
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struct ccid *c = (struct ccid *)epo->priv;
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c->err = epo->err;
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eventflag_signal (&c->ccid_comm, EV_RX_DATA_READY);
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}
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static int end_icc_rx (struct ep_out *epo, size_t orig_len)
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{
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(void)orig_len;
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if (epo->cnt < sizeof (struct icc_header))
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/* short packet, just ignore */
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return 1;
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/* icc message with no abdata */
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return 0;
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}
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static int end_abdata (struct ep_out *epo, size_t orig_len)
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{
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struct ccid *c = (struct ccid *)epo->priv;
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size_t len = epo->cnt;
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if (orig_len == USB_LL_BUF_SIZE && len < c->icc_header.data_len)
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/* more packet comes */
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return 1;
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if (len != c->icc_header.data_len)
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epo->err = 1;
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return 0;
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}
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static int end_cmd_apdu_head (struct ep_out *epo, size_t orig_len)
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{
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struct ccid *c = (struct ccid *)epo->priv;
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(void)orig_len;
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if (epo->cnt < 4 || epo->cnt != c->icc_header.data_len)
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{
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epo->err = 1;
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return 0;
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}
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if ((c->state == APDU_STATE_COMMAND_CHAINING)
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&& (c->chained_cls_ins_p1_p2[0] != (c->a->cmd_apdu_head[0] & ~0x10)
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|| c->chained_cls_ins_p1_p2[1] != c->a->cmd_apdu_head[1]
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|| c->chained_cls_ins_p1_p2[2] != c->a->cmd_apdu_head[2]
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|| c->chained_cls_ins_p1_p2[3] != c->a->cmd_apdu_head[3]))
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/*
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* Handling exceptional request.
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*
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* Host stops sending command APDU using command chaining,
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* and start another command APDU.
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*
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* Discard old one, and start handling new one.
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*/
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{
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c->state = APDU_STATE_WAIT_COMMAND;
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c->p = c->a->cmd_apdu_data;
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c->len = MAX_CMD_APDU_DATA_SIZE;
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}
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|
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if (epo->cnt == 4)
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{
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/* No Lc and Le */
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c->a->cmd_apdu_data_len = 0;
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c->a->expected_res_size = 0;
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}
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else if (epo->cnt == 5)
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{
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/* No Lc but Le */
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c->a->cmd_apdu_data_len = 0;
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c->a->expected_res_size = c->a->cmd_apdu_head[4];
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if (c->a->expected_res_size == 0)
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c->a->expected_res_size = 256;
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c->a->cmd_apdu_head[4] = 0;
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}
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return 0;
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}
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|
|
|
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static int end_nomore_data (struct ep_out *epo, size_t orig_len)
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{
|
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(void)epo;
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if (orig_len == USB_LL_BUF_SIZE)
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return 1;
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else
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return 0;
|
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}
|
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|
|
|
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static int end_cmd_apdu_data (struct ep_out *epo, size_t orig_len)
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{
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struct ccid *c = (struct ccid *)epo->priv;
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size_t len = epo->cnt;
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|
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if (orig_len == USB_LL_BUF_SIZE
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&& CMD_APDU_HEAD_SIZE + len < c->icc_header.data_len)
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/* more packet comes */
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return 1;
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if (CMD_APDU_HEAD_SIZE + len != c->icc_header.data_len)
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goto error;
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if (len == c->a->cmd_apdu_head[4])
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/* No Le field*/
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c->a->expected_res_size = 0;
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else if (len == (size_t)c->a->cmd_apdu_head[4] + 1)
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{
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/* it has Le field*/
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c->a->expected_res_size = epo->buf[-1];
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len--;
|
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}
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else
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{
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error:
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epo->err = 1;
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return 0;
|
|
}
|
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|
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c->a->cmd_apdu_data_len += len;
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return 0;
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}
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|
|
static void nomore_data (struct ep_out *epo, size_t len)
|
|
{
|
|
(void)len;
|
|
epo->err = 1;
|
|
epo->end_rx = end_nomore_data;
|
|
epo->buf = NULL;
|
|
epo->buf_len = 0;
|
|
epo->cnt = 0;
|
|
epo->next_buf = nomore_data;
|
|
}
|
|
|
|
#define INS_GET_RESPONSE 0xc0
|
|
|
|
static void icc_cmd_apdu_data (struct ep_out *epo, size_t len)
|
|
{
|
|
struct ccid *c = (struct ccid *)epo->priv;
|
|
|
|
(void)len;
|
|
if (c->state == APDU_STATE_RESULT_GET_RESPONSE
|
|
&& c->a->cmd_apdu_head[1] != INS_GET_RESPONSE)
|
|
{
|
|
/*
|
|
* Handling exceptional request.
|
|
*
|
|
* Host didn't finish receiving the whole response APDU by GET RESPONSE,
|
|
* but initiates another command.
|
|
*/
|
|
|
|
c->state = APDU_STATE_WAIT_COMMAND;
|
|
c->p = c->a->cmd_apdu_data;
|
|
c->len = MAX_CMD_APDU_DATA_SIZE;
|
|
}
|
|
else if (c->state == APDU_STATE_COMMAND_CHAINING)
|
|
{
|
|
if (c->chained_cls_ins_p1_p2[0] != (c->a->cmd_apdu_head[0] & ~0x10)
|
|
|| c->chained_cls_ins_p1_p2[1] != c->a->cmd_apdu_head[1]
|
|
|| c->chained_cls_ins_p1_p2[2] != c->a->cmd_apdu_head[2]
|
|
|| c->chained_cls_ins_p1_p2[3] != c->a->cmd_apdu_head[3])
|
|
/*
|
|
* Handling exceptional request.
|
|
*
|
|
* Host stops sending command APDU using command chaining,
|
|
* and start another command APDU.
|
|
*
|
|
* Discard old one, and start handling new one.
|
|
*/
|
|
{
|
|
c->state = APDU_STATE_WAIT_COMMAND;
|
|
c->p = c->a->cmd_apdu_data;
|
|
c->len = MAX_CMD_APDU_DATA_SIZE;
|
|
c->a->cmd_apdu_data_len = 0;
|
|
}
|
|
}
|
|
|
|
epo->end_rx = end_cmd_apdu_data;
|
|
epo->buf = c->p;
|
|
epo->buf_len = c->len;
|
|
epo->cnt = 0;
|
|
epo->next_buf = nomore_data;
|
|
}
|
|
|
|
static void icc_abdata (struct ep_out *epo, size_t len)
|
|
{
|
|
struct ccid *c = (struct ccid *)epo->priv;
|
|
|
|
(void)len;
|
|
c->a->seq = c->icc_header.seq;
|
|
if (c->icc_header.msg_type == ICC_XFR_BLOCK)
|
|
{
|
|
c->a->seq = c->icc_header.seq;
|
|
epo->end_rx = end_cmd_apdu_head;
|
|
epo->buf = c->a->cmd_apdu_head;
|
|
epo->buf_len = 5;
|
|
epo->cnt = 0;
|
|
epo->next_buf = icc_cmd_apdu_data;
|
|
}
|
|
else
|
|
{
|
|
epo->end_rx = end_abdata;
|
|
epo->buf = c->p;
|
|
epo->buf_len = c->len;
|
|
epo->cnt = 0;
|
|
epo->next_buf = nomore_data;
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
icc_prepare_receive (struct ccid *c)
|
|
{
|
|
c->epo->err = 0;
|
|
c->epo->buf = (uint8_t *)&c->icc_header;
|
|
c->epo->buf_len = sizeof (struct icc_header);
|
|
c->epo->cnt = 0;
|
|
c->epo->next_buf = icc_abdata;
|
|
c->epo->end_rx = end_icc_rx;
|
|
usb_lld_rx_enable (c->epo->ep_num);
|
|
DEBUG_INFO ("Rx ready\r\n");
|
|
}
|
|
|
|
/*
|
|
* Rx ready callback
|
|
*/
|
|
|
|
void
|
|
EP1_OUT_Callback (void)
|
|
{
|
|
struct ep_out *epo = &endpoint_out;
|
|
size_t len = usb_lld_rx_data_len (epo->ep_num);
|
|
int offset = 0;
|
|
int cont;
|
|
size_t orig_len = len;
|
|
|
|
while (epo->err == 0)
|
|
if (len == 0)
|
|
break;
|
|
else if (len <= epo->buf_len)
|
|
{
|
|
usb_lld_rxcpy (epo->buf, epo->ep_num, offset, len);
|
|
epo->buf += len;
|
|
epo->cnt += len;
|
|
epo->buf_len -= len;
|
|
break;
|
|
}
|
|
else /* len > buf_len */
|
|
{
|
|
usb_lld_rxcpy (epo->buf, epo->ep_num, offset, epo->buf_len);
|
|
len -= epo->buf_len;
|
|
offset += epo->buf_len;
|
|
epo->next_buf (epo, len); /* Update epo->buf, cnt, buf_len */
|
|
}
|
|
|
|
/*
|
|
* ORIG_LEN to distingush ZLP and the end of transaction
|
|
* (ORIG_LEN != USB_LL_BUF_SIZE)
|
|
*/
|
|
cont = epo->end_rx (epo, orig_len);
|
|
|
|
if (cont)
|
|
usb_lld_rx_enable (epo->ep_num);
|
|
else
|
|
epo->notify (epo);
|
|
}
|
|
|
|
|
|
/*
|
|
* ATR (Answer To Reset) string
|
|
*
|
|
* TS = 0x3b: Direct conversion
|
|
* T0 = 0xda: TA1, TC1 and TD1 follow, 10 historical bytes
|
|
* TA1 = 0x11: FI=1, DI=1
|
|
* TC1 = 0xff
|
|
* TD1 = 0x81: TD2 follows, T=1
|
|
* TD2 = 0xb1: TA3, TB3 and TD3 follow, T=1
|
|
* TA3 = 0xFE: IFSC = 254 bytes
|
|
* TB3 = 0x55: BWI = 5, CWI = 5 (BWT timeout 3.2 sec)
|
|
* TD3 = 0x1f: TA4 follows, T=15
|
|
* TA4 = 0x03: 5V or 3.3V
|
|
* Historical bytes: to be explained...
|
|
* XOR check
|
|
*
|
|
* Minimum: 0x3b, 0x8a, 0x80, 0x01, + historical bytes, xor check
|
|
*
|
|
*/
|
|
static const uint8_t ATR[] = {
|
|
0x3b, 0xda, 0x11, 0xff, 0x81, 0xb1, 0xfe, 0x55, 0x1f, 0x03,
|
|
0x00,
|
|
0x31, 0x84, /* full DF name, GET DATA, MF */
|
|
0x73,
|
|
0x80, /* DF full name */
|
|
0x01, /* 1-byte */
|
|
0x80, /* Command chaining, No extended Lc and extended Le */
|
|
0x00,
|
|
0x90, 0x00,
|
|
(0xda^0x11^0xff^0x81^0xb1^0xfe^0x55^0x1f^0x03
|
|
^0x00^0x31^0x84^0x73^0x80^0x01^0x80^0x00^0x90^0x00)
|
|
};
|
|
|
|
/*
|
|
* Send back error
|
|
*/
|
|
static void icc_error (struct ccid *c, int offset)
|
|
{
|
|
uint8_t icc_reply[ICC_MSG_HEADER_SIZE];
|
|
|
|
icc_reply[0] = ICC_SLOT_STATUS_RET; /* Any value should be OK */
|
|
icc_reply[1] = 0x00;
|
|
icc_reply[2] = 0x00;
|
|
icc_reply[3] = 0x00;
|
|
icc_reply[4] = 0x00;
|
|
icc_reply[5] = 0x00; /* Slot */
|
|
icc_reply[ICC_MSG_SEQ_OFFSET] = c->icc_header.seq;
|
|
if (c->icc_state == ICC_STATE_NOCARD)
|
|
icc_reply[ICC_MSG_STATUS_OFFSET] = 2; /* 2: No ICC present */
|
|
else if (c->icc_state == ICC_STATE_START)
|
|
icc_reply[ICC_MSG_STATUS_OFFSET] = 1; /* 1: ICC present but not activated */
|
|
else
|
|
icc_reply[ICC_MSG_STATUS_OFFSET] = 0; /* An ICC is present and active */
|
|
icc_reply[ICC_MSG_STATUS_OFFSET] |= ICC_CMD_STATUS_ERROR; /* Failed */
|
|
icc_reply[ICC_MSG_ERROR_OFFSET] = offset;
|
|
icc_reply[ICC_MSG_CHAIN_OFFSET] = 0x00;
|
|
|
|
/* This is a single packet Bulk-IN transaction */
|
|
c->epi->buf = NULL;
|
|
c->epi->tx_done = 1;
|
|
usb_lld_write (c->epi->ep_num, icc_reply, ICC_MSG_HEADER_SIZE);
|
|
}
|
|
|
|
extern void *openpgp_card_thread (void *arg);
|
|
|
|
extern uint8_t __process3_stack_base__, __process3_stack_size__;
|
|
const uint32_t __stackaddr_gpg = (uint32_t)&__process3_stack_base__;
|
|
const size_t __stacksize_gpg = (size_t)&__process3_stack_size__;
|
|
#define PRIO_GPG 1
|
|
|
|
|
|
/* Send back ATR (Answer To Reset) */
|
|
enum icc_state
|
|
icc_power_on (struct ccid *c)
|
|
{
|
|
size_t size_atr = sizeof (ATR);
|
|
uint8_t p[ICC_MSG_HEADER_SIZE];
|
|
|
|
if (c->application == 0)
|
|
c->application = chopstx_create (PRIO_GPG, __stackaddr_gpg,
|
|
__stacksize_gpg, openpgp_card_thread,
|
|
(void *)&c->ccid_comm);
|
|
|
|
p[0] = ICC_DATA_BLOCK_RET;
|
|
p[1] = size_atr;
|
|
p[2] = 0x00;
|
|
p[3] = 0x00;
|
|
p[4] = 0x00;
|
|
p[5] = 0x00; /* Slot */
|
|
p[ICC_MSG_SEQ_OFFSET] = c->icc_header.seq;
|
|
p[ICC_MSG_STATUS_OFFSET] = 0x00;
|
|
p[ICC_MSG_ERROR_OFFSET] = 0x00;
|
|
p[ICC_MSG_CHAIN_OFFSET] = 0x00;
|
|
|
|
usb_lld_txcpy (p, c->epi->ep_num, 0, ICC_MSG_HEADER_SIZE);
|
|
usb_lld_txcpy (ATR, c->epi->ep_num, ICC_MSG_HEADER_SIZE, size_atr);
|
|
|
|
/* This is a single packet Bulk-IN transaction */
|
|
c->epi->buf = NULL;
|
|
c->epi->tx_done = 1;
|
|
usb_lld_tx_enable (c->epi->ep_num, ICC_MSG_HEADER_SIZE + size_atr);
|
|
DEBUG_INFO ("ON\r\n");
|
|
|
|
return ICC_STATE_WAIT;
|
|
}
|
|
|
|
static void
|
|
icc_send_status (struct ccid *c)
|
|
{
|
|
uint8_t icc_reply[ICC_MSG_HEADER_SIZE];
|
|
|
|
icc_reply[0] = ICC_SLOT_STATUS_RET;
|
|
icc_reply[1] = 0x00;
|
|
icc_reply[2] = 0x00;
|
|
icc_reply[3] = 0x00;
|
|
icc_reply[4] = 0x00;
|
|
icc_reply[5] = 0x00; /* Slot */
|
|
icc_reply[ICC_MSG_SEQ_OFFSET] = c->icc_header.seq;
|
|
if (c->icc_state == ICC_STATE_NOCARD)
|
|
icc_reply[ICC_MSG_STATUS_OFFSET] = 2; /* 2: No ICC present */
|
|
else if (c->icc_state == ICC_STATE_START)
|
|
icc_reply[ICC_MSG_STATUS_OFFSET] = 1; /* 1: ICC present but not activated */
|
|
else
|
|
icc_reply[ICC_MSG_STATUS_OFFSET] = 0; /* An ICC is present and active */
|
|
icc_reply[ICC_MSG_ERROR_OFFSET] = 0x00;
|
|
icc_reply[ICC_MSG_CHAIN_OFFSET] = 0x00;
|
|
|
|
/* This is a single packet Bulk-IN transaction */
|
|
c->epi->buf = NULL;
|
|
c->epi->tx_done = 1;
|
|
usb_lld_write (c->epi->ep_num, icc_reply, ICC_MSG_HEADER_SIZE);
|
|
|
|
led_blink (LED_SHOW_STATUS);
|
|
#ifdef DEBUG_MORE
|
|
DEBUG_INFO ("St\r\n");
|
|
#endif
|
|
}
|
|
|
|
enum icc_state
|
|
icc_power_off (struct ccid *c)
|
|
{
|
|
if (c->application)
|
|
{
|
|
eventflag_signal (&c->openpgp_comm, EV_EXIT);
|
|
chopstx_join (c->application, NULL);
|
|
c->application = 0;
|
|
}
|
|
|
|
c->icc_state = ICC_STATE_START; /* This status change should be here */
|
|
icc_send_status (c);
|
|
DEBUG_INFO ("OFF\r\n");
|
|
return ICC_STATE_START;
|
|
}
|
|
|
|
static void
|
|
icc_send_data_block_internal (struct ccid *c, uint8_t status, uint8_t error)
|
|
{
|
|
int tx_size = USB_LL_BUF_SIZE;
|
|
uint8_t p[ICC_MSG_HEADER_SIZE];
|
|
size_t len;
|
|
|
|
if (status == 0)
|
|
len = c->a->res_apdu_data_len + 2;
|
|
else
|
|
len = 0;
|
|
|
|
p[0] = ICC_DATA_BLOCK_RET;
|
|
p[1] = len & 0xFF;
|
|
p[2] = (len >> 8)& 0xFF;
|
|
p[3] = (len >> 16)& 0xFF;
|
|
p[4] = (len >> 24)& 0xFF;
|
|
p[5] = 0x00; /* Slot */
|
|
p[ICC_MSG_SEQ_OFFSET] = c->a->seq;
|
|
p[ICC_MSG_STATUS_OFFSET] = status;
|
|
p[ICC_MSG_ERROR_OFFSET] = error;
|
|
p[ICC_MSG_CHAIN_OFFSET] = 0;
|
|
|
|
usb_lld_txcpy (p, c->epi->ep_num, 0, ICC_MSG_HEADER_SIZE);
|
|
if (len == 0)
|
|
{
|
|
usb_lld_tx_enable (c->epi->ep_num, ICC_MSG_HEADER_SIZE);
|
|
return;
|
|
}
|
|
|
|
if (ICC_MSG_HEADER_SIZE + len <= USB_LL_BUF_SIZE)
|
|
{
|
|
usb_lld_txcpy (c->a->res_apdu_data, c->epi->ep_num,
|
|
ICC_MSG_HEADER_SIZE, c->a->res_apdu_data_len);
|
|
usb_lld_txcpy (c->sw1sw2, c->epi->ep_num,
|
|
ICC_MSG_HEADER_SIZE + c->a->res_apdu_data_len, 2);
|
|
c->epi->buf = NULL;
|
|
if (ICC_MSG_HEADER_SIZE + len < USB_LL_BUF_SIZE)
|
|
c->epi->tx_done = 1;
|
|
tx_size = ICC_MSG_HEADER_SIZE + len;
|
|
}
|
|
else if (ICC_MSG_HEADER_SIZE + len - 1 == USB_LL_BUF_SIZE)
|
|
{
|
|
usb_lld_txcpy (c->a->res_apdu_data, c->epi->ep_num,
|
|
ICC_MSG_HEADER_SIZE, c->a->res_apdu_data_len);
|
|
usb_lld_txcpy (c->sw1sw2, c->epi->ep_num,
|
|
ICC_MSG_HEADER_SIZE + c->a->res_apdu_data_len, 1);
|
|
c->epi->buf = &c->sw1sw2[1];
|
|
c->epi->cnt = 1;
|
|
c->epi->buf_len = 1;
|
|
c->epi->next_buf = no_buf;
|
|
}
|
|
else if (ICC_MSG_HEADER_SIZE + len - 2 == USB_LL_BUF_SIZE)
|
|
{
|
|
usb_lld_txcpy (c->a->res_apdu_data, c->epi->ep_num,
|
|
ICC_MSG_HEADER_SIZE, c->a->res_apdu_data_len);
|
|
c->epi->buf = &c->sw1sw2[0];
|
|
c->epi->cnt = 0;
|
|
c->epi->buf_len = 2;
|
|
c->epi->next_buf = no_buf;
|
|
}
|
|
else
|
|
{
|
|
usb_lld_txcpy (c->a->res_apdu_data, c->epi->ep_num, ICC_MSG_HEADER_SIZE,
|
|
USB_LL_BUF_SIZE - ICC_MSG_HEADER_SIZE);
|
|
c->epi->buf = c->a->res_apdu_data + USB_LL_BUF_SIZE - ICC_MSG_HEADER_SIZE;
|
|
c->epi->cnt = USB_LL_BUF_SIZE - ICC_MSG_HEADER_SIZE;
|
|
c->epi->buf_len = c->a->res_apdu_data_len
|
|
- (USB_LL_BUF_SIZE - ICC_MSG_HEADER_SIZE);
|
|
c->epi->next_buf = get_sw1sw2;
|
|
}
|
|
|
|
usb_lld_tx_enable (c->epi->ep_num, tx_size);
|
|
#ifdef DEBUG_MORE
|
|
DEBUG_INFO ("DATA\r\n");
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
icc_send_data_block (struct ccid *c)
|
|
{
|
|
icc_send_data_block_internal (c, 0, 0);
|
|
}
|
|
|
|
static void
|
|
icc_send_data_block_time_extension (struct ccid *c)
|
|
{
|
|
icc_send_data_block_internal (c, ICC_CMD_STATUS_TIMEEXT, 1);
|
|
}
|
|
|
|
static void
|
|
icc_send_data_block_0x9000 (struct ccid *c)
|
|
{
|
|
uint8_t p[ICC_MSG_HEADER_SIZE+2];
|
|
size_t len = 2;
|
|
|
|
p[0] = ICC_DATA_BLOCK_RET;
|
|
p[1] = len & 0xFF;
|
|
p[2] = (len >> 8)& 0xFF;
|
|
p[3] = (len >> 16)& 0xFF;
|
|
p[4] = (len >> 24)& 0xFF;
|
|
p[5] = 0x00; /* Slot */
|
|
p[ICC_MSG_SEQ_OFFSET] = c->a->seq;
|
|
p[ICC_MSG_STATUS_OFFSET] = 0;
|
|
p[ICC_MSG_ERROR_OFFSET] = 0;
|
|
p[ICC_MSG_CHAIN_OFFSET] = 0;
|
|
p[ICC_MSG_CHAIN_OFFSET+1] = 0x90;
|
|
p[ICC_MSG_CHAIN_OFFSET+2] = 0x00;
|
|
|
|
usb_lld_txcpy (p, c->epi->ep_num, 0, ICC_MSG_HEADER_SIZE + len);
|
|
c->epi->buf = NULL;
|
|
c->epi->tx_done = 1;
|
|
|
|
usb_lld_tx_enable (c->epi->ep_num, ICC_MSG_HEADER_SIZE + len);
|
|
#ifdef DEBUG_MORE
|
|
DEBUG_INFO ("DATA\r\n");
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Reply to the host for "GET RESPONSE".
|
|
*/
|
|
static void
|
|
icc_send_data_block_gr (struct ccid *c, size_t chunk_len)
|
|
{
|
|
int tx_size = USB_LL_BUF_SIZE;
|
|
uint8_t p[ICC_MSG_HEADER_SIZE];
|
|
size_t len = chunk_len + 2;
|
|
|
|
p[0] = ICC_DATA_BLOCK_RET;
|
|
p[1] = len & 0xFF;
|
|
p[2] = (len >> 8)& 0xFF;
|
|
p[3] = (len >> 16)& 0xFF;
|
|
p[4] = (len >> 24)& 0xFF;
|
|
p[5] = 0x00; /* Slot */
|
|
p[ICC_MSG_SEQ_OFFSET] = c->a->seq;
|
|
p[ICC_MSG_STATUS_OFFSET] = 0;
|
|
p[ICC_MSG_ERROR_OFFSET] = 0;
|
|
p[ICC_MSG_CHAIN_OFFSET] = 0;
|
|
|
|
usb_lld_txcpy (p, c->epi->ep_num, 0, ICC_MSG_HEADER_SIZE);
|
|
|
|
set_sw1sw2 (c, chunk_len);
|
|
|
|
if (chunk_len <= USB_LL_BUF_SIZE - ICC_MSG_HEADER_SIZE)
|
|
{
|
|
int size_for_sw;
|
|
|
|
if (chunk_len <= USB_LL_BUF_SIZE - ICC_MSG_HEADER_SIZE - 2)
|
|
size_for_sw = 2;
|
|
else if (chunk_len == USB_LL_BUF_SIZE - ICC_MSG_HEADER_SIZE - 1)
|
|
size_for_sw = 1;
|
|
else
|
|
size_for_sw = 0;
|
|
|
|
usb_lld_txcpy (c->p, c->epi->ep_num, ICC_MSG_HEADER_SIZE, chunk_len);
|
|
if (size_for_sw)
|
|
usb_lld_txcpy (c->sw1sw2, c->epi->ep_num,
|
|
ICC_MSG_HEADER_SIZE + chunk_len, size_for_sw);
|
|
tx_size = ICC_MSG_HEADER_SIZE + chunk_len + size_for_sw;
|
|
if (size_for_sw == 2)
|
|
{
|
|
c->epi->buf = NULL;
|
|
if (tx_size < USB_LL_BUF_SIZE)
|
|
c->epi->tx_done = 1;
|
|
/* Don't set epi->tx_done = 1, when it requires ZLP */
|
|
}
|
|
else
|
|
{
|
|
c->epi->buf = c->sw1sw2 + size_for_sw;
|
|
c->epi->cnt = size_for_sw;
|
|
c->epi->buf_len = 2 - size_for_sw;
|
|
c->epi->next_buf = no_buf;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
usb_lld_txcpy (c->p, c->epi->ep_num, ICC_MSG_HEADER_SIZE,
|
|
USB_LL_BUF_SIZE - ICC_MSG_HEADER_SIZE);
|
|
c->epi->buf = c->p + USB_LL_BUF_SIZE - ICC_MSG_HEADER_SIZE;
|
|
c->epi->cnt = 0;
|
|
c->epi->buf_len = chunk_len - (USB_LL_BUF_SIZE - ICC_MSG_HEADER_SIZE);
|
|
c->epi->next_buf = get_sw1sw2;
|
|
}
|
|
|
|
c->p += chunk_len;
|
|
c->len -= chunk_len;
|
|
usb_lld_tx_enable (c->epi->ep_num, tx_size);
|
|
#ifdef DEBUG_MORE
|
|
DEBUG_INFO ("DATA\r\n");
|
|
#endif
|
|
}
|
|
|
|
|
|
static void
|
|
icc_send_params (struct ccid *c)
|
|
{
|
|
uint8_t p[ICC_MSG_HEADER_SIZE];
|
|
const uint8_t params[] = {
|
|
0x11, /* bmFindexDindex */
|
|
0x11, /* bmTCCKST1 */
|
|
0xFE, /* bGuardTimeT1 */
|
|
0x55, /* bmWaitingIntegersT1 */
|
|
0x03, /* bClockStop */
|
|
0xFE, /* bIFSC */
|
|
0 /* bNadValue */
|
|
};
|
|
|
|
p[0] = ICC_PARAMS_RET;
|
|
p[1] = 0x07; /* Length = 0x00000007 */
|
|
p[2] = 0;
|
|
p[3] = 0;
|
|
p[4] = 0;
|
|
p[5] = 0x00; /* Slot */
|
|
p[ICC_MSG_SEQ_OFFSET] = c->icc_header.seq;
|
|
p[ICC_MSG_STATUS_OFFSET] = 0;
|
|
p[ICC_MSG_ERROR_OFFSET] = 0;
|
|
p[ICC_MSG_CHAIN_OFFSET] = 0x01; /* ProtocolNum: T=1 */
|
|
|
|
usb_lld_txcpy (p, c->epi->ep_num, 0, ICC_MSG_HEADER_SIZE);
|
|
usb_lld_txcpy (params, c->epi->ep_num, ICC_MSG_HEADER_SIZE, sizeof params);
|
|
|
|
/* This is a single packet Bulk-IN transaction */
|
|
c->epi->buf = NULL;
|
|
c->epi->tx_done = 1;
|
|
usb_lld_tx_enable (c->epi->ep_num, ICC_MSG_HEADER_SIZE + sizeof params);
|
|
#ifdef DEBUG_MORE
|
|
DEBUG_INFO ("PARAMS\r\n");
|
|
#endif
|
|
}
|
|
|
|
|
|
static enum icc_state
|
|
icc_handle_data (struct ccid *c)
|
|
{
|
|
enum icc_state next_state = c->icc_state;
|
|
|
|
if (c->err != 0)
|
|
{
|
|
ccid_reset (c);
|
|
icc_error (c, ICC_OFFSET_DATA_LEN);
|
|
return next_state;
|
|
}
|
|
|
|
switch (c->icc_state)
|
|
{
|
|
case ICC_STATE_NOCARD:
|
|
if (c->icc_header.msg_type == ICC_SLOT_STATUS)
|
|
icc_send_status (c);
|
|
else
|
|
{
|
|
DEBUG_INFO ("ERR00\r\n");
|
|
icc_error (c, ICC_OFFSET_CMD_NOT_SUPPORTED);
|
|
}
|
|
break;
|
|
case ICC_STATE_START:
|
|
if (c->icc_header.msg_type == ICC_POWER_ON)
|
|
{
|
|
ccid_reset (c);
|
|
next_state = icc_power_on (c);
|
|
}
|
|
else if (c->icc_header.msg_type == ICC_POWER_OFF)
|
|
{
|
|
ccid_reset (c);
|
|
next_state = icc_power_off (c);
|
|
}
|
|
else if (c->icc_header.msg_type == ICC_SLOT_STATUS)
|
|
icc_send_status (c);
|
|
else
|
|
{
|
|
DEBUG_INFO ("ERR01\r\n");
|
|
icc_error (c, ICC_OFFSET_CMD_NOT_SUPPORTED);
|
|
}
|
|
break;
|
|
case ICC_STATE_WAIT:
|
|
if (c->icc_header.msg_type == ICC_POWER_ON)
|
|
{
|
|
/* Not in the spec., but pcscd/libccid */
|
|
ccid_reset (c);
|
|
next_state = icc_power_on (c);
|
|
}
|
|
else if (c->icc_header.msg_type == ICC_POWER_OFF)
|
|
{
|
|
ccid_reset (c);
|
|
next_state = icc_power_off (c);
|
|
}
|
|
else if (c->icc_header.msg_type == ICC_SLOT_STATUS)
|
|
icc_send_status (c);
|
|
else if (c->icc_header.msg_type == ICC_XFR_BLOCK)
|
|
{
|
|
if (c->icc_header.param == 0)
|
|
{
|
|
if ((c->a->cmd_apdu_head[0] & 0x10) == 0)
|
|
{
|
|
if (c->state == APDU_STATE_COMMAND_CHAINING)
|
|
{ /* command chaining finished */
|
|
c->p += c->a->cmd_apdu_head[4];
|
|
c->a->cmd_apdu_head[4] = 0;
|
|
DEBUG_INFO ("CMD chaning finished.\r\n");
|
|
}
|
|
|
|
if (c->a->cmd_apdu_head[1] == INS_GET_RESPONSE
|
|
&& c->state == APDU_STATE_RESULT_GET_RESPONSE)
|
|
{
|
|
size_t len = c->a->expected_res_size;
|
|
|
|
if (c->len <= c->a->expected_res_size)
|
|
len = c->len;
|
|
|
|
icc_send_data_block_gr (c, len);
|
|
if (c->len == 0)
|
|
c->state = APDU_STATE_RESULT;
|
|
c->icc_state = ICC_STATE_WAIT;
|
|
DEBUG_INFO ("GET Response.\r\n");
|
|
}
|
|
else
|
|
{ /* Give this message to GPG thread */
|
|
c->state = APDU_STATE_COMMAND_RECEIVED;
|
|
|
|
c->a->sw = 0x9000;
|
|
c->a->res_apdu_data_len = 0;
|
|
c->a->res_apdu_data = &icc_buffer[5];
|
|
|
|
eventflag_signal (&c->openpgp_comm, EV_CMD_AVAILABLE);
|
|
next_state = ICC_STATE_EXECUTE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (c->state == APDU_STATE_WAIT_COMMAND)
|
|
{ /* command chaining is started */
|
|
c->a->cmd_apdu_head[0] &= ~0x10;
|
|
memcpy (c->chained_cls_ins_p1_p2, c->a->cmd_apdu_head, 4);
|
|
c->state = APDU_STATE_COMMAND_CHAINING;
|
|
}
|
|
|
|
c->p += c->a->cmd_apdu_head[4];
|
|
c->len -= c->a->cmd_apdu_head[4];
|
|
icc_send_data_block_0x9000 (c);
|
|
DEBUG_INFO ("CMD chaning...\r\n");
|
|
}
|
|
}
|
|
else
|
|
{ /* ICC block chaining is not supported. */
|
|
DEBUG_INFO ("ERR02\r\n");
|
|
icc_error (c, ICC_OFFSET_PARAM);
|
|
}
|
|
}
|
|
else if (c->icc_header.msg_type == ICC_SET_PARAMS
|
|
|| c->icc_header.msg_type == ICC_GET_PARAMS)
|
|
icc_send_params (c);
|
|
else if (c->icc_header.msg_type == ICC_SECURE)
|
|
{
|
|
if (c->p != c->a->cmd_apdu_data)
|
|
{
|
|
/* SECURE received in the middle of command chaining */
|
|
ccid_reset (c);
|
|
icc_error (c, ICC_OFFSET_DATA_LEN);
|
|
return next_state;
|
|
}
|
|
|
|
if (c->p[10-10] == 0x00) /* PIN verification */
|
|
{
|
|
c->a->cmd_apdu_head[0] = c->p[25-10];
|
|
c->a->cmd_apdu_head[1] = c->p[26-10];
|
|
c->a->cmd_apdu_head[2] = c->p[27-10];
|
|
c->a->cmd_apdu_head[3] = c->p[28-10];
|
|
/**/
|
|
c->a->cmd_apdu_data[0] = 0; /* bConfirmPIN */
|
|
c->a->cmd_apdu_data[1] = c->p[17-10]; /* bEntryValidationCondition */
|
|
c->a->cmd_apdu_data[2] = c->p[18-10]; /* bNumberMessage */
|
|
c->a->cmd_apdu_data[3] = c->p[19-10]; /* wLangId L */
|
|
c->a->cmd_apdu_data[4] = c->p[20-10]; /* wLangId H */
|
|
c->a->cmd_apdu_data[5] = c->p[21-10]; /* bMsgIndex */
|
|
|
|
c->a->cmd_apdu_data_len = 6;
|
|
c->a->expected_res_size = 0;
|
|
|
|
c->a->sw = 0x9000;
|
|
c->a->res_apdu_data_len = 0;
|
|
c->a->res_apdu_data = &c->p[5];
|
|
|
|
eventflag_signal (&c->openpgp_comm, EV_VERIFY_CMD_AVAILABLE);
|
|
next_state = ICC_STATE_EXECUTE;
|
|
}
|
|
else if (c->p[10-10] == 0x01) /* PIN Modification */
|
|
{
|
|
uint8_t num_msgs = c->p[21-10];
|
|
|
|
if (num_msgs == 0x00)
|
|
num_msgs = 1;
|
|
else if (num_msgs == 0xff)
|
|
num_msgs = 3;
|
|
c->a->cmd_apdu_head[0] = c->p[27 + num_msgs-10];
|
|
c->a->cmd_apdu_head[1] = c->p[28 + num_msgs-10];
|
|
c->a->cmd_apdu_head[2] = c->p[29 + num_msgs-10];
|
|
c->a->cmd_apdu_head[3] = c->p[30 + num_msgs-10];
|
|
/**/
|
|
c->a->cmd_apdu_data[0] = c->p[19-10]; /* bConfirmPIN */
|
|
c->a->cmd_apdu_data[1] = c->p[20-10]; /* bEntryValidationCondition */
|
|
c->a->cmd_apdu_data[2] = c->p[21-10]; /* bNumberMessage */
|
|
c->a->cmd_apdu_data[3] = c->p[22-10]; /* wLangId L */
|
|
c->a->cmd_apdu_data[4] = c->p[23-10]; /* wLangId H */
|
|
c->a->cmd_apdu_data[5] = c->p[24-10]; /* bMsgIndex, bMsgIndex1 */
|
|
if (num_msgs >= 2)
|
|
c->a->cmd_apdu_data[6] = c->p[25-10]; /* bMsgIndex2 */
|
|
if (num_msgs == 3)
|
|
c->a->cmd_apdu_data[7] = c->p[26-10]; /* bMsgIndex3 */
|
|
|
|
c->a->cmd_apdu_data_len = 5 + num_msgs;
|
|
c->a->expected_res_size = 0;
|
|
|
|
c->a->sw = 0x9000;
|
|
c->a->res_apdu_data_len = 0;
|
|
c->a->res_apdu_data = &icc_buffer[5];
|
|
|
|
eventflag_signal (&c->openpgp_comm, EV_MODIFY_CMD_AVAILABLE);
|
|
next_state = ICC_STATE_EXECUTE;
|
|
}
|
|
else
|
|
icc_error (c, ICC_MSG_DATA_OFFSET);
|
|
}
|
|
else
|
|
{
|
|
DEBUG_INFO ("ERR03\r\n");
|
|
DEBUG_BYTE (c->icc_header.msg_type);
|
|
icc_error (c, ICC_OFFSET_CMD_NOT_SUPPORTED);
|
|
}
|
|
break;
|
|
case ICC_STATE_EXECUTE:
|
|
if (c->icc_header.msg_type == ICC_POWER_OFF)
|
|
next_state = icc_power_off (c);
|
|
else if (c->icc_header.msg_type == ICC_SLOT_STATUS)
|
|
icc_send_status (c);
|
|
else
|
|
{
|
|
DEBUG_INFO ("ERR04\r\n");
|
|
DEBUG_BYTE (c->icc_header.msg_type);
|
|
icc_error (c, ICC_OFFSET_CMD_NOT_SUPPORTED);
|
|
}
|
|
break;
|
|
default:
|
|
next_state = ICC_STATE_START;
|
|
DEBUG_INFO ("ERR10\r\n");
|
|
break;
|
|
}
|
|
|
|
return next_state;
|
|
}
|
|
|
|
static enum icc_state
|
|
icc_handle_timeout (struct ccid *c)
|
|
{
|
|
enum icc_state next_state = c->icc_state;
|
|
|
|
switch (c->icc_state)
|
|
{
|
|
case ICC_STATE_EXECUTE:
|
|
icc_send_data_block_time_extension (c);
|
|
led_blink (LED_ONESHOT);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return next_state;
|
|
}
|
|
|
|
/*
|
|
* Another Tx done callback
|
|
*/
|
|
void
|
|
EP2_IN_Callback (void)
|
|
{
|
|
}
|
|
|
|
|
|
#define USB_ICC_TIMEOUT (1950*1000)
|
|
|
|
static struct ccid ccid;
|
|
|
|
#define GPG_THREAD_TERMINATED 0xffff
|
|
|
|
static void *ccid_thread (chopstx_t) __attribute__ ((noinline));
|
|
|
|
void * __attribute__ ((naked))
|
|
USBthread (void *arg)
|
|
{
|
|
chopstx_t thd;
|
|
(void)arg;
|
|
|
|
asm ("mov %0, sp" : "=r" (thd));
|
|
return ccid_thread (thd);
|
|
}
|
|
|
|
void
|
|
ccid_card_change_signal (int how)
|
|
{
|
|
struct ccid *c = &ccid;
|
|
|
|
if (how == CARD_CHANGE_TOGGLE
|
|
|| (c->icc_state == ICC_STATE_NOCARD && how == CARD_CHANGE_INSERT)
|
|
|| (c->icc_state != ICC_STATE_NOCARD && how == CARD_CHANGE_REMOVE))
|
|
eventflag_signal (&c->ccid_comm, EV_CARD_CHANGE);
|
|
}
|
|
|
|
|
|
static void * __attribute__ ((noinline))
|
|
ccid_thread (chopstx_t thd)
|
|
{
|
|
struct ep_in *epi = &endpoint_in;
|
|
struct ep_out *epo = &endpoint_out;
|
|
struct ccid *c = &ccid;
|
|
struct apdu *a = &apdu;
|
|
int card_change_requested = 0;
|
|
|
|
epi_init (epi, ENDP1, notify_tx, c);
|
|
epo_init (epo, ENDP1, notify_icc, c);
|
|
ccid_init (c, epi, epo, a, thd);
|
|
apdu_init (a);
|
|
|
|
icc_prepare_receive (c);
|
|
while (1)
|
|
{
|
|
eventmask_t m;
|
|
|
|
m = eventflag_wait_timeout (&c->ccid_comm, USB_ICC_TIMEOUT);
|
|
|
|
if (m == EV_CARD_CHANGE)
|
|
{
|
|
if (card_change_requested)
|
|
{
|
|
uint8_t notify_slot_change[2] = { 0x50, 0x02 };
|
|
|
|
led_blink (LED_TWOSHOTS);
|
|
|
|
if (c->icc_state == ICC_STATE_NOCARD)
|
|
{ /* Inserted! */
|
|
c->icc_state = ICC_STATE_START;
|
|
notify_slot_change[1] |= 1;
|
|
}
|
|
else
|
|
{
|
|
if (c->application)
|
|
{
|
|
eventflag_signal (&c->openpgp_comm, EV_EXIT);
|
|
chopstx_join (c->application, NULL);
|
|
c->application = 0;
|
|
}
|
|
|
|
c->icc_state = ICC_STATE_NOCARD;
|
|
}
|
|
|
|
card_change_requested = 0;
|
|
usb_lld_write (ENDP2, notify_slot_change, 2);
|
|
}
|
|
else
|
|
card_change_requested = 1;
|
|
}
|
|
else if (m == EV_RX_DATA_READY)
|
|
c->icc_state = icc_handle_data (c);
|
|
else if (m == EV_EXEC_FINISHED)
|
|
if (c->icc_state == ICC_STATE_EXECUTE)
|
|
{
|
|
if (c->a->sw == GPG_THREAD_TERMINATED)
|
|
{
|
|
c->sw1sw2[0] = 0x90;
|
|
c->sw1sw2[1] = 0x00;
|
|
c->state = APDU_STATE_RESULT;
|
|
icc_send_data_block (c);
|
|
c->icc_state = ICC_STATE_EXITED;
|
|
break;
|
|
}
|
|
|
|
c->a->cmd_apdu_data_len = 0;
|
|
c->sw1sw2[0] = c->a->sw >> 8;
|
|
c->sw1sw2[1] = c->a->sw & 0xff;
|
|
|
|
if (c->a->res_apdu_data_len <= c->a->expected_res_size)
|
|
{
|
|
c->state = APDU_STATE_RESULT;
|
|
icc_send_data_block (c);
|
|
c->icc_state = ICC_STATE_WAIT;
|
|
}
|
|
else
|
|
{
|
|
c->state = APDU_STATE_RESULT_GET_RESPONSE;
|
|
c->p = c->a->res_apdu_data;
|
|
c->len = c->a->res_apdu_data_len;
|
|
icc_send_data_block_gr (c, c->a->expected_res_size);
|
|
c->icc_state = ICC_STATE_WAIT;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
DEBUG_INFO ("ERR07\r\n");
|
|
}
|
|
else if (m == EV_TX_FINISHED)
|
|
{
|
|
if (c->state == APDU_STATE_RESULT)
|
|
{
|
|
c->state = APDU_STATE_WAIT_COMMAND;
|
|
c->p = c->a->cmd_apdu_data;
|
|
c->len = MAX_CMD_APDU_DATA_SIZE;
|
|
c->err = 0;
|
|
c->a->cmd_apdu_data_len = 0;
|
|
c->a->expected_res_size = 0;
|
|
}
|
|
|
|
if (c->state == APDU_STATE_WAIT_COMMAND
|
|
|| c->state == APDU_STATE_COMMAND_CHAINING
|
|
|| c->state == APDU_STATE_RESULT_GET_RESPONSE)
|
|
icc_prepare_receive (c);
|
|
}
|
|
else /* Timeout */
|
|
{
|
|
c->icc_state = icc_handle_timeout (c);
|
|
card_change_requested = 0;
|
|
}
|
|
}
|
|
|
|
if (c->application)
|
|
{
|
|
chopstx_join (c->application, NULL);
|
|
c->application = 0;
|
|
}
|
|
|
|
return NULL;
|
|
}
|