140 lines
3.3 KiB
C
140 lines
3.3 KiB
C
#pragma once
|
|
|
|
#include <stdbool.h>
|
|
#include <sys/socket.h>
|
|
#include <arpa/inet.h>
|
|
#include <netinet/in.h>
|
|
|
|
#include <pthread.h>
|
|
|
|
#include <wintypes.h>
|
|
#include <winscard.h>
|
|
|
|
#include <osmocom/core/linuxlist.h>
|
|
|
|
struct bankd;
|
|
|
|
struct bank_slot {
|
|
uint16_t bank_id;
|
|
uint16_t slot_nr;
|
|
};
|
|
|
|
static inline bool bank_slot_equals(const struct bank_slot *a, const struct bank_slot *b)
|
|
{
|
|
if (a->bank_id == b->bank_id && a->slot_nr == b->slot_nr)
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
struct client_slot {
|
|
uint16_t client_id;
|
|
uint16_t slot_nr;
|
|
};
|
|
|
|
static inline bool client_slot_equals(const struct client_slot *a, const struct client_slot *b)
|
|
{
|
|
if (a->client_id == b->client_id && a->slot_nr == b->slot_nr)
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/* slot mappings are created / removed by the server */
|
|
struct bankd_slot_mapping {
|
|
/* global lits of bankd slot mappings */
|
|
struct llist_head list;
|
|
/* slot on bank side */
|
|
struct bank_slot bank;
|
|
/* slot on client side */
|
|
struct client_slot client;
|
|
};
|
|
|
|
/* thread-safe lookup of map by client:slot */
|
|
struct bankd_slot_mapping *bankd_slotmap_by_client(struct bankd *bankd,
|
|
const struct client_slot *client);
|
|
|
|
/* thread-safe lookup of map by bank:slot */
|
|
struct bankd_slot_mapping *bankd_slotmap_by_bank(struct bankd *bankd, const struct bank_slot *bank);
|
|
|
|
/* thread-safe creating of a new bank<->client map */
|
|
int bankd_slotmap_add(struct bankd *bankd, const struct bank_slot *bank,
|
|
const struct client_slot *client);
|
|
|
|
/* thread-safe removal of a bank<->client map */
|
|
void bankd_slotmap_del(struct bankd *bankd, struct bankd_slot_mapping *map);
|
|
|
|
enum bankd_worker_state {
|
|
/* just started*/
|
|
BW_ST_INIT,
|
|
/* blocking in the accept() call on the server socket fd */
|
|
BW_ST_ACCEPTING,
|
|
/* TCP established, but peer not yet identified itself */
|
|
BW_ST_CONN_WAIT_ID,
|
|
/* TCP established, client has identified itself, no mapping */
|
|
BW_ST_CONN_CLIENT,
|
|
/* TCP established, client has identified itself, mapping exists */
|
|
BW_ST_CONN_CLIENT_MAPPED,
|
|
/* TCP established, client identified, mapping exists, card opened */
|
|
BW_ST_CONN_CLIENT_MAPPED_CARD,
|
|
};
|
|
|
|
|
|
/* bankd worker instance; one per card/slot, includes thread */
|
|
struct bankd_worker {
|
|
/* global list of workers */
|
|
struct llist_head list;
|
|
/* back-pointer to bankd */
|
|
struct bankd *bankd;
|
|
|
|
/* thread number */
|
|
unsigned int num;
|
|
/* worker thread state */
|
|
enum bankd_worker_state state;
|
|
|
|
/* slot number we are representing */
|
|
struct bank_slot slot;
|
|
|
|
/* thread of this worker. */
|
|
pthread_t thread;
|
|
|
|
/* File descriptor of the TCP connection to the remsim-client (modem) */
|
|
struct {
|
|
int fd;
|
|
struct sockaddr_storage peer_addr;
|
|
socklen_t peer_addr_len;
|
|
unsigned int id;
|
|
} client;
|
|
|
|
struct {
|
|
const char *name;
|
|
union {
|
|
struct {
|
|
/* PC/SC context / application handle */
|
|
SCARDCONTEXT hContext;
|
|
/* PC/SC card handle */
|
|
SCARDHANDLE hCard;
|
|
} pcsc;
|
|
};
|
|
} reader;
|
|
};
|
|
|
|
|
|
/* global bank deamon */
|
|
struct bankd {
|
|
struct {
|
|
uint16_t bank_id;
|
|
} cfg;
|
|
|
|
/* TCP socket at which we are listening */
|
|
int accept_fd;
|
|
|
|
/* list of slit mappings. only ever modified in main thread! */
|
|
struct llist_head slot_mappings;
|
|
pthread_rwlock_t slot_mappings_rwlock;
|
|
|
|
/* list of bankd_workers. accessed/modified by multiple threads; protected by mutex */
|
|
struct llist_head workers;
|
|
pthread_mutex_t workers_mutex;
|
|
};
|