142 lines
3.5 KiB
C
142 lines
3.5 KiB
C
#pragma once
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#include <stdbool.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <pthread.h>
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#include <wintypes.h>
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#include <winscard.h>
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#include <osmocom/core/linuxlist.h>
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#include "rspro_util.h"
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#include "slotmap.h"
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#include "client.h"
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#include "debug.h"
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extern struct value_string worker_state_names[];
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#define LOGW(w, fmt, args...) \
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printf("[%03u %s] %s:%u " fmt, (w)->num, get_value_string(worker_state_names, (w)->state), \
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__FILE__, __LINE__, ## args)
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struct bankd;
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enum bankd_worker_state {
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/* just started*/
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BW_ST_INIT,
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/* blocking in the accept() call on the server socket fd */
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BW_ST_ACCEPTING,
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/* TCP established, but peer not yet identified itself */
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BW_ST_CONN_WAIT_ID,
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/* TCP established, client has identified itself, no mapping */
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BW_ST_CONN_CLIENT,
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/* TCP established, client has identified itself, waiting for mapping */
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BW_ST_CONN_CLIENT_WAIT_MAP,
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/* TCP established, client has identified itself, mapping exists */
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BW_ST_CONN_CLIENT_MAPPED,
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/* TCP established, client identified, mapping exists, card opened */
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BW_ST_CONN_CLIENT_MAPPED_CARD,
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/* TCP established, client identified, but mapping [meanwhile] removed */
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BW_ST_CONN_CLIENT_UNMAPPED
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};
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/* bankd worker instance; one per card/slot, includes thread */
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struct bankd_worker {
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/* global list of workers */
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struct llist_head list;
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/* back-pointer to bankd */
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struct bankd *bankd;
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/* name of the worker */
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char *name;
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/* thread number */
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unsigned int num;
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/* worker thread state */
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enum bankd_worker_state state;
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/* timeout to use for blocking read */
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unsigned int timeout;
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/* slot number we are representing */
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struct bank_slot slot;
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/* thread of this worker. */
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pthread_t thread;
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/* top talloc context for this worker/thread */
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void *tall_ctx;
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const struct bankd_driver_ops *ops;
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/* File descriptor of the TCP connection to the remsim-client (modem) */
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struct {
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int fd;
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struct sockaddr_storage peer_addr;
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socklen_t peer_addr_len;
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struct client_slot clslot;
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} client;
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struct {
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const char *name;
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union {
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struct {
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/* PC/SC context / application handle */
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SCARDCONTEXT hContext;
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/* PC/SC card handle */
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SCARDHANDLE hCard;
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} pcsc;
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};
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} reader;
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struct {
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uint8_t atr[MAX_ATR_SIZE];
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unsigned int atr_len;
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} card;
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};
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/* bankd card reader driver operations */
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struct bankd_driver_ops {
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/* open a given card/slot: called once client + mapping exists */
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int (*open_card)(struct bankd_worker *worker);
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int (*transceive)(struct bankd_worker *worker, const uint8_t *out, size_t out_len,
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uint8_t *in, size_t *in_len);
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/* called at cleanup time of a worker thread: clear any driver related state */
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void (*cleanup)(struct bankd_worker *worker);
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};
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/* global bank deamon */
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struct bankd {
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struct {
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uint16_t bank_id;
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uint16_t num_slots;
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} cfg;
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struct app_comp_id comp_id;
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/* RSPRO connection to the remsim-server */
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struct rspro_server_conn srvc;
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/* TCP socket at which we are listening */
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int accept_fd;
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/* list of slot mappings. only ever modified in main thread! */
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struct slotmaps *slotmaps;
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/* pthread ID of main thread */
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pthread_t main;
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/* list of bankd_workers. accessed/modified by multiple threads; protected by mutex */
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struct llist_head workers;
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pthread_mutex_t workers_mutex;
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struct llist_head pcsc_slot_names;
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};
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int bankd_pcsc_read_slotnames(struct bankd *bankd, const char *csv_file);
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const char *bankd_pcsc_get_slot_name(struct bankd *bankd, const struct bank_slot *slot);
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extern const struct bankd_driver_ops pcsc_driver_ops;
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