Osmocom Remote SIM Software Suite https://osmocom.org/projects/osmo-remsim
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osmo-remsim/src/bankd/bankd.h

142 lines
3.7 KiB

#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>
#include "rspro_util.h"
#include "slotmap.h"
#include "rspro_client_fsm.h"
#include "debug.h"
extern struct value_string worker_state_names[];
#define LOGW(w, fmt, args...) \
LOGP(DBANKDW, LOGL_INFO, "[%03u B%u:%u %s] " fmt, (w)->num, (w)->slot.bank_id, (w)->slot.slot_nr, get_value_string(worker_state_names, (w)->state), \
## args)
struct bankd;
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, waiting for mapping */
BW_ST_CONN_CLIENT_WAIT_MAP,
/* 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,
/* TCP established, client identified, but mapping [meanwhile] removed */
BW_ST_CONN_CLIENT_UNMAPPED
};
/* 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;
/* name of the worker */
char *name;
/* thread number */
unsigned int num;
/* worker thread state */
enum bankd_worker_state state;
/* timeout to use for blocking read */
unsigned int timeout;
/* slot number we are representing */
struct bank_slot slot;
/* thread of this worker. */
pthread_t thread;
/* top talloc context for this worker/thread */
void *tall_ctx;
const struct bankd_driver_ops *ops;
/* File descriptor of the TCP connection to the remsim-client (modem) */
struct {
int fd;
struct sockaddr_storage peer_addr;
socklen_t peer_addr_len;
struct client_slot clslot;
} client;
struct {
const char *name;
union {
struct {
/* PC/SC context / application handle */
SCARDCONTEXT hContext;
/* PC/SC card handle */
SCARDHANDLE hCard;
} pcsc;
};
} reader;
struct {
uint8_t atr[MAX_ATR_SIZE];
unsigned int atr_len;
} card;
};
/* bankd card reader driver operations */
struct bankd_driver_ops {
/* open a given card/slot: called once client + mapping exists */
int (*open_card)(struct bankd_worker *worker);
/* reset a given card/slot with either cold or warm reset */
int (*reset_card)(struct bankd_worker *worker, bool cold_reset);
int (*transceive)(struct bankd_worker *worker, const uint8_t *out, size_t out_len,
uint8_t *in, size_t *in_len);
/* called at cleanup time of a worker thread: clear any driver related state */
void (*cleanup)(struct bankd_worker *worker);
};
/* global bank deamon */
struct bankd {
struct app_comp_id comp_id;
/* RSPRO connection to the remsim-server */
struct rspro_server_conn srvc;
/* TCP socket at which we are listening */
int accept_fd;
/* list of slot mappings. only ever modified in main thread! */
struct slotmaps *slotmaps;
/* pthread ID of main thread */
pthread_t main;
/* list of bankd_workers. accessed/modified by multiple threads; protected by mutex */
struct llist_head workers;
pthread_mutex_t workers_mutex;
struct llist_head pcsc_slot_names;
struct {
bool permit_shared_pcsc;
} cfg;
};
int bankd_pcsc_read_slotnames(struct bankd *bankd, const char *csv_file);
const char *bankd_pcsc_get_slot_name(struct bankd *bankd, const struct bank_slot *slot);
extern const struct bankd_driver_ops pcsc_driver_ops;