| /* (C) 2018-2019 by Harald Welte <laforge@gnumonks.org> |
| * |
| * All Rights Reserved |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| */ |
| |
| |
| #include <osmocom/core/linuxlist.h> |
| #include <osmocom/core/talloc.h> |
| #include <osmocom/core/utils.h> |
| |
| #include <csv.h> |
| |
| #include "bankd.h" |
| |
| struct pcsc_slot_name { |
| struct llist_head list; |
| /* RSPRO bank slot number */ |
| struct bank_slot slot; |
| /* String name of the reader in PC/SC world */ |
| const char *name; |
| }; |
| |
| enum parser_state_name { |
| ST_NONE, |
| ST_BANK_NR, |
| ST_SLOT_NR, |
| ST_PCSC_NAME, |
| }; |
| struct parser_state { |
| struct bankd *bankd; |
| enum parser_state_name state; |
| struct pcsc_slot_name *cur; |
| }; |
| |
| |
| static void parser_state_init(struct parser_state *ps) |
| { |
| ps->state = ST_BANK_NR; |
| ps->cur = NULL; |
| } |
| |
| static void cb1(void *s, size_t len, void *data) |
| { |
| char *field = (char *) s; |
| struct parser_state *ps = data; |
| |
| switch (ps->state) { |
| case ST_BANK_NR: |
| OSMO_ASSERT(!ps->cur); |
| ps->cur = talloc_zero(ps->bankd, struct pcsc_slot_name); |
| OSMO_ASSERT(ps->cur); |
| ps->cur->slot.bank_id = atoi(field); |
| ps->state = ST_SLOT_NR; |
| break; |
| case ST_SLOT_NR: |
| OSMO_ASSERT(ps->cur); |
| ps->cur->slot.slot_nr = atoi(field); |
| ps->state = ST_PCSC_NAME; |
| break; |
| case ST_PCSC_NAME: |
| OSMO_ASSERT(ps->cur); |
| ps->cur->name = talloc_strdup(ps->cur, field); |
| break; |
| default: |
| OSMO_ASSERT(0); |
| } |
| } |
| |
| static void cb2(int c, void *data) |
| { |
| struct parser_state *ps = data; |
| struct pcsc_slot_name *sn = ps->cur; |
| |
| printf("PC/SC slot name: %u/%u -> '%s'\n", sn->slot.bank_id, sn->slot.slot_nr, sn->name); |
| llist_add_tail(&sn->list, &ps->bankd->pcsc_slot_names); |
| |
| ps->state = ST_BANK_NR; |
| ps->cur = NULL; |
| } |
| |
| int bankd_pcsc_read_slotnames(struct bankd *bankd, const char *csv_file) |
| { |
| FILE *fp; |
| struct csv_parser p; |
| char buf[1024]; |
| size_t bytes_read; |
| struct parser_state ps; |
| |
| if (csv_init(&p, CSV_APPEND_NULL) != 0) |
| return -1; |
| |
| fp = fopen(csv_file, "rb"); |
| if (!fp) |
| return -1; |
| |
| parser_state_init(&ps); |
| ps.bankd = bankd; |
| |
| while ((bytes_read = fread(buf, 1, sizeof(buf), fp)) > 0) { |
| if (csv_parse(&p, buf, bytes_read, cb1, cb2, &ps) != bytes_read) { |
| fprintf(stderr, "Error parsing CSV: %s\n", csv_strerror(csv_error(&p))); |
| fclose(fp); |
| return -1; |
| } |
| } |
| |
| csv_fini(&p, cb1, cb2, &ps); |
| fclose(fp); |
| csv_free(&p); |
| |
| return 0; |
| } |
| |
| const char *bankd_pcsc_get_slot_name(struct bankd *bankd, const struct bank_slot *slot) |
| { |
| struct pcsc_slot_name *cur; |
| |
| llist_for_each_entry(cur, &bankd->pcsc_slot_names, list) { |
| if (bank_slot_equals(&cur->slot, slot)) |
| return cur->name; |
| } |
| return NULL; |
| } |
| |
| |
| #include <wintypes.h> |
| #include <winscard.h> |
| #include <pcsclite.h> |
| |
| #define PCSC_ERROR(w, rv, text) \ |
| if (rv != SCARD_S_SUCCESS) { \ |
| LOGW((w), text ": %s (0x%lX)\n", pcsc_stringify_error(rv), rv); \ |
| goto end; \ |
| } else { \ |
| LOGW((w), ": OK\n"); \ |
| } |
| |
| static int pcsc_open_card(struct bankd_worker *worker) |
| { |
| long rc; |
| |
| if (!worker->reader.pcsc.hContext) { |
| LOGW(worker, "Attempting to open PC/SC context\n"); |
| /* The PC/SC context must be created inside the thread where we'll later use it */ |
| rc = SCardEstablishContext(SCARD_SCOPE_SYSTEM, NULL, NULL, &worker->reader.pcsc.hContext); |
| PCSC_ERROR(worker, rc, "SCardEstablishContext") |
| } |
| |
| if (!worker->reader.pcsc.hCard) { |
| LOGW(worker, "Attempting to open card/slot '%s'\n", worker->reader.name); |
| DWORD dwActiveProtocol; |
| rc = SCardConnect(worker->reader.pcsc.hContext, worker->reader.name, SCARD_SHARE_SHARED, |
| SCARD_PROTOCOL_T0, &worker->reader.pcsc.hCard, &dwActiveProtocol); |
| PCSC_ERROR(worker, rc, "SCardConnect") |
| } |
| |
| /* use DWORD type as this is what the PC/SC API expects */ |
| char pbReader[MAX_READERNAME]; |
| DWORD dwReaderLen = sizeof(pbReader); |
| DWORD dwAtrLen = worker->card.atr_len = sizeof(worker->card.atr); |
| DWORD dwState, dwProt; |
| rc = SCardStatus(worker->reader.pcsc.hCard, pbReader, &dwReaderLen, &dwState, &dwProt, |
| worker->card.atr, &dwAtrLen); |
| PCSC_ERROR(worker, rc, "SCardStatus") |
| worker->card.atr_len = dwAtrLen; |
| LOGW(worker, "Card ATR: %s\n", osmo_hexdump_nospc(worker->card.atr, worker->card.atr_len)); |
| end: |
| return rc; |
| } |
| |
| static int pcsc_transceive(struct bankd_worker *worker, const uint8_t *out, size_t out_len, |
| uint8_t *in, size_t *in_len) |
| { |
| const SCARD_IO_REQUEST *pioSendPci = SCARD_PCI_T0; |
| SCARD_IO_REQUEST pioRecvPci; |
| long rc; |
| |
| rc = SCardTransmit(worker->reader.pcsc.hCard, pioSendPci, out, out_len, &pioRecvPci, in, in_len); |
| PCSC_ERROR(worker, rc, "SCardTransmit"); |
| |
| end: |
| return rc; |
| } |
| |
| static void pcsc_cleanup(struct bankd_worker *worker) |
| { |
| if (worker->reader.pcsc.hCard) { |
| SCardDisconnect(worker->reader.pcsc.hCard, SCARD_UNPOWER_CARD); |
| worker->reader.pcsc.hCard = 0; |
| } |
| if (worker->reader.pcsc.hContext) { |
| SCardReleaseContext(worker->reader.pcsc.hContext); |
| worker->reader.pcsc.hContext = 0; |
| } |
| } |
| |
| const struct bankd_driver_ops pcsc_driver_ops = { |
| .open_card = pcsc_open_card, |
| .transceive = pcsc_transceive, |
| .cleanup = pcsc_cleanup, |
| }; |