adapt remsim-client to use simtrace2 cardem
simtrace2-remsim_client.c combines simtrace2-remsim and
remsim_client.c.
it compiles but is short of sending the modem APDU from simtrace2
cardem to bankd.
diff --git a/src/Makefile.am b/src/Makefile.am
index 70b37de..9bdb532 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -12,9 +12,14 @@
rspro/libosmo-asn1-rspro.la
libosmo_rspro_la_SOURCES = rspro_util.c
-noinst_HEADERS = bankd.h client.h internal.h rspro_util.h
+noinst_HEADERS = bankd.h client.h internal.h rspro_util.h \
+ simtrace2/apdu_dispatch.h \
+ simtrace2/libusb_util.h \
+ simtrace2/simtrace2-discovery.h \
+ simtrace2/simtrace_prot.h \
+ simtrace2/simtrace_usb.h
-bin_PROGRAMS = pcsc_test remsim-bankd remsim-client
+bin_PROGRAMS = pcsc_test remsim-bankd remsim-client simtrace2-remsim-client
pcsc_test_SOURCES = driver_core.c driver_pcsc.c main.c
pcsc_test_LDADD = $(OSMOCORE_LIBS) \
@@ -27,3 +32,10 @@
remsim_client_SOURCES = remsim_client.c remsim_client_fsm.c
remsim_client_LDADD = $(OSMOCORE_LIBS) $(OSMOGSM_LIBS) $(OSMOABIS_LIBS) \
libosmo-rspro.la
+
+simtrace2_remsim_client_SOURCES = simtrace2-remsim_client.c remsim_client_fsm.c \
+ simtrace2/apdu_dispatch.c \
+ simtrace2/simtrace2-discovery.c \
+ simtrace2/libusb_util.c
+simtrace2_remsim_client_LDADD = $(OSMOCORE_LIBS) $(OSMOGSM_LIBS) $(OSMOABIS_LIBS) $(USB_LIBS) $(OSMOSIM_LIBS)\
+ libosmo-rspro.la
diff --git a/src/simtrace2-remsim_client.c b/src/simtrace2-remsim_client.c
new file mode 100644
index 0000000..f10656c
--- /dev/null
+++ b/src/simtrace2-remsim_client.c
@@ -0,0 +1,825 @@
+
+#include <errno.h>
+#include <string.h>
+
+#include <talloc.h>
+
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/fsm.h>
+#include <osmocom/core/utils.h>
+#include <osmocom/core/logging.h>
+#include <osmocom/core/application.h>
+
+#include <osmocom/abis/ipa.h>
+#include <osmocom/gsm/protocol/ipaccess.h>
+
+#include "rspro_util.h"
+#include "client.h"
+
+#include <unistd.h>
+#include <stdio.h>
+#include <signal.h>
+#include <getopt.h>
+
+#include <libusb.h>
+
+#include "simtrace2/libusb_util.h"
+#include "simtrace2/simtrace_prot.h"
+#include "simtrace2/apdu_dispatch.h"
+#include "simtrace2/simtrace2-discovery.h"
+
+#include <osmocom/core/gsmtap.h>
+#include <osmocom/core/gsmtap_util.h>
+#include <osmocom/core/utils.h>
+#include <osmocom/core/socket.h>
+#include <osmocom/core/msgb.h>
+#include <osmocom/sim/class_tables.h>
+#include <osmocom/sim/sim.h>
+
+/* transport to a SIMtrace device */
+struct st_transport {
+ /* USB */
+ struct libusb_device_handle *usb_devh;
+ struct {
+ uint8_t in;
+ uint8_t out;
+ uint8_t irq_in;
+ } usb_ep;
+
+ /* UDP */
+ int udp_fd;
+};
+
+/* a SIMtrace slot; communicates over a transport */
+struct st_slot {
+ /* transport through which the slot can be reached */
+ struct st_transport *transp;
+ /* number of the slot within the transport */
+ uint8_t slot_nr;
+};
+
+/* One istance of card emulation */
+struct cardem_inst {
+ /* slot on which this card emulation instance runs */
+ struct st_slot *slot;
+};
+
+/* global GSMTAP instance */
+static struct gsmtap_inst *g_gti;
+
+static struct bankd_client *g_client;
+static void *g_tall_ctx;
+void __thread *talloc_asn1_ctx;
+int asn_debug;
+
+static int gsmtap_send_sim(const uint8_t *apdu, unsigned int len)
+{
+ struct gsmtap_hdr *gh;
+ unsigned int gross_len = len + sizeof(*gh);
+ uint8_t *buf = malloc(gross_len);
+ int rc;
+
+ if (!buf)
+ return -ENOMEM;
+
+ memset(buf, 0, sizeof(*gh));
+ gh = (struct gsmtap_hdr *) buf;
+ gh->version = GSMTAP_VERSION;
+ gh->hdr_len = sizeof(*gh)/4;
+ gh->type = GSMTAP_TYPE_SIM;
+
+ memcpy(buf + sizeof(*gh), apdu, len);
+
+ rc = write(gsmtap_inst_fd(g_gti), buf, gross_len);
+ if (rc < 0) {
+ perror("write gsmtap");
+ free(buf);
+ return rc;
+ }
+
+ free(buf);
+ return 0;
+}
+
+/***********************************************************************
+ * SIMTRACE pcore protocol
+ ***********************************************************************/
+
+/*! \brief allocate a message buffer for simtrace use */
+static struct msgb *st_msgb_alloc(void)
+{
+ return msgb_alloc_headroom(1024+32, 32, "SIMtrace");
+}
+
+#if 0
+static void apdu_out_cb(uint8_t *buf, unsigned int len, void *user_data)
+{
+ printf("APDU: %s\n", osmo_hexdump(buf, len));
+ gsmtap_send_sim(buf, len);
+}
+#endif
+
+/*! \brief Transmit a given command to the SIMtrace2 device */
+int st_transp_tx_msg(struct st_transport *transp, struct msgb *msg)
+{
+ int rc;
+
+ printf("<- %s\n", msgb_hexdump(msg));
+
+ if (transp->udp_fd < 0) {
+ int xfer_len;
+
+ rc = libusb_bulk_transfer(transp->usb_devh, transp->usb_ep.out,
+ msgb_data(msg), msgb_length(msg),
+ &xfer_len, 100000);
+ } else {
+ rc = write(transp->udp_fd, msgb_data(msg), msgb_length(msg));
+ }
+
+ msgb_free(msg);
+ return rc;
+}
+
+static struct simtrace_msg_hdr *st_push_hdr(struct msgb *msg, uint8_t msg_class, uint8_t msg_type,
+ uint8_t slot_nr)
+{
+ struct simtrace_msg_hdr *sh;
+
+ sh = (struct simtrace_msg_hdr *) msgb_push(msg, sizeof(*sh));
+ memset(sh, 0, sizeof(*sh));
+ sh->msg_class = msg_class;
+ sh->msg_type = msg_type;
+ sh->slot_nr = slot_nr;
+ sh->msg_len = msgb_length(msg);
+
+ return sh;
+}
+
+/* transmit a given message to a specified slot. Expects all headers
+ * present before calling the function */
+int st_slot_tx_msg(struct st_slot *slot, struct msgb *msg,
+ uint8_t msg_class, uint8_t msg_type)
+{
+ st_push_hdr(msg, msg_class, msg_type, slot->slot_nr);
+
+ return st_transp_tx_msg(slot->transp, msg);
+}
+
+/***********************************************************************
+ * Card Emulation protocol
+ ***********************************************************************/
+
+
+/*! \brief Request the SIMtrace2 to generate a card-insert signal */
+static int cardem_request_card_insert(struct cardem_inst *ci, bool inserted)
+{
+ struct msgb *msg = st_msgb_alloc();
+ struct cardemu_usb_msg_cardinsert *cins;
+
+ cins = (struct cardemu_usb_msg_cardinsert *) msgb_put(msg, sizeof(*cins));
+ memset(cins, 0, sizeof(*cins));
+ if (inserted)
+ cins->card_insert = 1;
+
+ return st_slot_tx_msg(ci->slot, msg, SIMTRACE_MSGC_CARDEM, SIMTRACE_MSGT_DT_CEMU_CARDINSERT);
+}
+
+/*! \brief Request the SIMtrace2 to transmit a Procedure Byte, then Rx */
+static int cardem_request_pb_and_rx(struct cardem_inst *ci, uint8_t pb, uint8_t le)
+{
+ struct msgb *msg = st_msgb_alloc();
+ struct cardemu_usb_msg_tx_data *txd;
+ txd = (struct cardemu_usb_msg_tx_data *) msgb_put(msg, sizeof(*txd));
+
+ printf("<= %s(%02x, %d)\n", __func__, pb, le);
+
+ memset(txd, 0, sizeof(*txd));
+ txd->data_len = 1;
+ txd->flags = CEMU_DATA_F_PB_AND_RX;
+ /* one data byte */
+ msgb_put_u8(msg, pb);
+
+ return st_slot_tx_msg(ci->slot, msg, SIMTRACE_MSGC_CARDEM, SIMTRACE_MSGT_DT_CEMU_TX_DATA);
+}
+
+/*! \brief Request the SIMtrace2 to transmit a Procedure Byte, then Tx */
+static int cardem_request_pb_and_tx(struct cardem_inst *ci, uint8_t pb,
+ const uint8_t *data, uint8_t data_len_in)
+{
+ struct msgb *msg = st_msgb_alloc();
+ struct cardemu_usb_msg_tx_data *txd;
+ uint8_t *cur;
+
+ txd = (struct cardemu_usb_msg_tx_data *) msgb_put(msg, sizeof(*txd));
+
+ printf("<= %s(%02x, %s, %d)\n", __func__, pb,
+ osmo_hexdump(data, data_len_in), data_len_in);
+
+ memset(txd, 0, sizeof(*txd));
+ txd->data_len = 1 + data_len_in;
+ txd->flags = CEMU_DATA_F_PB_AND_TX;
+ /* procedure byte */
+ msgb_put_u8(msg, pb);
+ /* data */
+ cur = msgb_put(msg, data_len_in);
+ memcpy(cur, data, data_len_in);
+
+ return st_slot_tx_msg(ci->slot, msg, SIMTRACE_MSGC_CARDEM, SIMTRACE_MSGT_DT_CEMU_TX_DATA);
+}
+
+/*! \brief Request the SIMtrace2 to send a Status Word */
+static int cardem_request_sw_tx(struct cardem_inst *ci, const uint8_t *sw)
+{
+ struct msgb *msg = st_msgb_alloc();
+ struct cardemu_usb_msg_tx_data *txd;
+ uint8_t *cur;
+
+ txd = (struct cardemu_usb_msg_tx_data *) msgb_put(msg, sizeof(*txd));
+
+ printf("<= %s(%02x %02x)\n", __func__, sw[0], sw[1]);
+
+ memset(txd, 0, sizeof(*txd));
+ txd->data_len = 2;
+ txd->flags = CEMU_DATA_F_PB_AND_TX | CEMU_DATA_F_FINAL;
+ cur = msgb_put(msg, 2);
+ cur[0] = sw[0];
+ cur[1] = sw[1];
+
+ return st_slot_tx_msg(ci->slot, msg, SIMTRACE_MSGC_CARDEM, SIMTRACE_MSGT_DT_CEMU_TX_DATA);
+}
+
+static void atr_update_csum(uint8_t *atr, unsigned int atr_len)
+{
+ uint8_t csum = 0;
+ int i;
+
+ for (i = 1; i < atr_len - 1; i++)
+ csum = csum ^ atr[i];
+
+ atr[atr_len-1] = csum;
+}
+
+static int cardem_request_set_atr(struct cardem_inst *ci, const uint8_t *atr, unsigned int atr_len)
+{
+ struct msgb *msg = st_msgb_alloc();
+ struct cardemu_usb_msg_set_atr *satr;
+ uint8_t *cur;
+
+ satr = (struct cardemu_usb_msg_set_atr *) msgb_put(msg, sizeof(*satr));
+
+ printf("<= %s(%s)\n", __func__, osmo_hexdump(atr, atr_len));
+
+ memset(satr, 0, sizeof(*satr));
+ satr->atr_len = atr_len;
+ cur = msgb_put(msg, atr_len);
+ memcpy(cur, atr, atr_len);
+
+ return st_slot_tx_msg(ci->slot, msg, SIMTRACE_MSGC_CARDEM, SIMTRACE_MSGT_DT_CEMU_SET_ATR);
+}
+
+/***********************************************************************
+ * Modem Control protocol
+ ***********************************************************************/
+
+static int _modem_reset(struct st_slot *slot, uint8_t asserted, uint16_t pulse_ms)
+{
+ struct msgb *msg = st_msgb_alloc();
+ struct st_modem_reset *sr ;
+
+ sr = (struct st_modem_reset *) msgb_put(msg, sizeof(*sr));
+ sr->asserted = asserted;
+ sr->pulse_duration_msec = pulse_ms;
+
+ return st_slot_tx_msg(slot, msg, SIMTRACE_MSGC_MODEM, SIMTRACE_MSGT_DT_MODEM_RESET);
+}
+
+/*! \brief pulse the RESET line of the modem for \a duration_ms milli-seconds*/
+int st_modem_reset_pulse(struct st_slot *slot, uint16_t duration_ms)
+{
+ return _modem_reset(slot, 2, duration_ms);
+}
+
+/*! \brief assert the RESET line of the modem */
+int st_modem_reset_active(struct st_slot *slot)
+{
+ return _modem_reset(slot, 1, 0);
+}
+
+/*! \brief de-assert the RESET line of the modem */
+int st_modem_reset_inactive(struct st_slot *slot)
+{
+ return _modem_reset(slot, 0, 0);
+}
+
+static int _modem_sim_select(struct st_slot *slot, uint8_t remote_sim)
+{
+ struct msgb *msg = st_msgb_alloc();
+ struct st_modem_sim_select *ss;
+
+ ss = (struct st_modem_sim_select *) msgb_put(msg, sizeof(*ss));
+ ss->remote_sim = remote_sim;
+
+ return st_slot_tx_msg(slot, msg, SIMTRACE_MSGC_MODEM, SIMTRACE_MSGT_DT_MODEM_SIM_SELECT);
+}
+
+/*! \brief select local (physical) SIM for given slot */
+int st_modem_sim_select_local(struct st_slot *slot)
+{
+ return _modem_sim_select(slot, 0);
+}
+
+/*! \brief select remote (emulated/forwarded) SIM for given slot */
+int st_modem_sim_select_remote(struct st_slot *slot)
+{
+ return _modem_sim_select(slot, 1);
+}
+
+/*! \brief Request slot to send us status information about the modem */
+int st_modem_get_status(struct st_slot *slot)
+{
+ struct msgb *msg = st_msgb_alloc();
+
+ return st_slot_tx_msg(slot, msg, SIMTRACE_MSGC_MODEM, SIMTRACE_MSGT_BD_MODEM_STATUS);
+}
+
+
+/***********************************************************************
+ * Incoming Messages
+ ***********************************************************************/
+
+/*! \brief Process a STATUS message from the SIMtrace2 */
+static int process_do_status(struct cardem_inst *ci, uint8_t *buf, int len)
+{
+ struct cardemu_usb_msg_status *status;
+ status = (struct cardemu_usb_msg_status *) buf;
+
+ printf("=> STATUS: flags=0x%x, fi=%u, di=%u, wi=%u wtime=%u\n",
+ status->flags, status->fi, status->di, status->wi,
+ status->waiting_time);
+
+ return 0;
+}
+
+/*! \brief Process a PTS indication message from the SIMtrace2 */
+static int process_do_pts(struct cardem_inst *ci, uint8_t *buf, int len)
+{
+ struct cardemu_usb_msg_pts_info *pts;
+ pts = (struct cardemu_usb_msg_pts_info *) buf;
+
+ printf("=> PTS req: %s\n", osmo_hexdump(pts->req, sizeof(pts->req)));
+
+ return 0;
+}
+
+/*! \brief Process a ERROR indication message from the SIMtrace2 */
+static int process_do_error(struct cardem_inst *ci, uint8_t *buf, int len)
+{
+ struct cardemu_usb_msg_error *err;
+ err = (struct cardemu_usb_msg_error *) buf;
+
+ printf("=> ERROR: %u/%u/%u: %s\n",
+ err->severity, err->subsystem, err->code,
+ err->msg_len ? (char *)err->msg : "");
+
+ return 0;
+}
+
+/*! \brief Process a RX-DATA indication message from the SIMtrace2 */
+static int process_do_rx_da(struct cardem_inst *ci, uint8_t *buf, int len)
+{
+ static struct apdu_context ac;
+ struct cardemu_usb_msg_rx_data *data;
+ int rc;
+
+ data = (struct cardemu_usb_msg_rx_data *) buf;
+
+ printf("=> DATA: flags=%x, %s: ", data->flags,
+ osmo_hexdump(data->data, data->data_len));
+
+ rc = apdu_segment_in(&ac, data->data, data->data_len,
+ data->flags & CEMU_DATA_F_TPDU_HDR);
+
+ if (rc & APDU_ACT_TX_CAPDU_TO_CARD) {
+ struct msgb *tmsg = msgb_alloc(1024, "TPDU");
+ uint8_t *cur;
+
+ /* Copy TPDU header */
+ cur = msgb_put(tmsg, sizeof(ac.hdr));
+ memcpy(cur, &ac.hdr, sizeof(ac.hdr));
+ /* Copy D(c), if any */
+ if (ac.lc.tot) {
+ cur = msgb_put(tmsg, ac.lc.tot);
+ memcpy(cur, ac.dc, ac.lc.tot);
+ }
+ /* send to actual card */
+ tmsg->l3h = tmsg->tail;
+ printf("ok\n");
+ RsproPDU_t *pdu = rspro_gen_TpduModem2Card(g_client->clslot, NULL, NULL, 0);
+ printf("ko\n");
+ ipa_client_conn_send_rspro(g_client->bankd_conn, pdu);
+ // FIXME
+ msgb_apdu_sw(tmsg) = msgb_get_u16(tmsg);
+ ac.sw[0] = msgb_apdu_sw(tmsg) >> 8;
+ ac.sw[1] = msgb_apdu_sw(tmsg) & 0xff;
+ printf("SW=0x%04x, len_rx=%d\n", msgb_apdu_sw(tmsg), msgb_l3len(tmsg));
+ if (msgb_l3len(tmsg))
+ cardem_request_pb_and_tx(ci, ac.hdr.ins, tmsg->l3h, msgb_l3len(tmsg));
+ cardem_request_sw_tx(ci, ac.sw);
+ } else if (ac.lc.tot > ac.lc.cur) {
+ cardem_request_pb_and_rx(ci, ac.hdr.ins, ac.lc.tot - ac.lc.cur);
+ }
+ return 0;
+}
+
+#if 0
+ case SIMTRACE_CMD_DO_ERROR
+ rc = process_do_error(ci, buf, len);
+ break;
+#endif
+
+/*! \brief Process an incoming message from the SIMtrace2 */
+static int process_usb_msg(struct cardem_inst *ci, uint8_t *buf, int len)
+{
+ struct simtrace_msg_hdr *sh = (struct simtrace_msg_hdr *)buf;
+ int rc;
+
+ printf("-> %s\n", osmo_hexdump(buf, len));
+
+ buf += sizeof(*sh);
+
+ switch (sh->msg_type) {
+ case SIMTRACE_MSGT_BD_CEMU_STATUS:
+ rc = process_do_status(ci, buf, len);
+ break;
+ case SIMTRACE_MSGT_DO_CEMU_PTS:
+ rc = process_do_pts(ci, buf, len);
+ break;
+ case SIMTRACE_MSGT_DO_CEMU_RX_DATA:
+ rc = process_do_rx_da(ci, buf, len);
+ break;
+ default:
+ printf("unknown simtrace msg type 0x%02x\n", sh->msg_type);
+ rc = -1;
+ break;
+ }
+
+ return rc;
+}
+
+static void print_welcome(void)
+{
+ printf("simtrace2-remsim - Remote SIM card forwarding\n"
+ "(C) 2010-2017, Harald Welte <laforge@gnumonks.org>\n"
+ "(C) 2018, sysmocom -s.f.m.c. GmbH, Author: Kevin Redon <kredon@sysmocom.de>\n\n");
+}
+
+static void print_help(void)
+{
+ printf( "\t-r\t--remote-udp-host HOST\n"
+ "\t-p\t--remote-udp-port PORT\n"
+ "\t-h\t--help\n"
+ "\t-i\t--gsmtap-ip\tA.B.C.D\n"
+ "\t-k\t--keep-running\n"
+ "\t-V\t--usb-vendor\tVENDOR_ID\n"
+ "\t-P\t--usb-product\tPRODUCT_ID\n"
+ "\t-C\t--usb-config\tCONFIG_ID\n"
+ "\t-I\t--usb-interface\tINTERFACE_ID\n"
+ "\t-S\t--usb-altsetting ALTSETTING_ID\n"
+ "\t-A\t--usb-address\tADDRESS\n"
+ "\t-H\t--usb-path\tPATH\n"
+ "\n"
+ );
+}
+
+static const struct option opts[] = {
+ { "remote-udp-host", 1, 0, 'r' },
+ { "remote-udp-port", 1, 0, 'p' },
+ { "gsmtap-ip", 1, 0, 'i' },
+ { "help", 0, 0, 'h' },
+ { "keep-running", 0, 0, 'k' },
+ { "usb-vendor", 1, 0, 'V' },
+ { "usb-product", 1, 0, 'P' },
+ { "usb-config", 1, 0, 'C' },
+ { "usb-interface", 1, 0, 'I' },
+ { "usb-altsetting", 1, 0, 'S' },
+ { "usb-address", 1, 0, 'A' },
+ { "usb-path", 1, 0, 'H' },
+ { NULL, 0, 0, 0 }
+};
+
+static void run_mainloop(struct cardem_inst *ci)
+{
+ struct st_transport *transp = ci->slot->transp;
+ unsigned int msg_count, byte_count = 0;
+ uint8_t buf[16*265];
+ int xfer_len;
+ int rc;
+
+ printf("Entering main loop\n");
+
+ while (1) {
+ /* read data from SIMtrace2 device (local or via USB) */
+ rc = libusb_bulk_transfer(transp->usb_devh, transp->usb_ep.in,
+ buf, sizeof(buf), &xfer_len, 100);
+ if (rc < 0 && rc != LIBUSB_ERROR_TIMEOUT &&
+ rc != LIBUSB_ERROR_INTERRUPTED &&
+ rc != LIBUSB_ERROR_IO) {
+ fprintf(stderr, "BULK IN transfer error; rc=%d\n", rc);
+ return;
+ }
+ /* dispatch any incoming data */
+ if (xfer_len > 0) {
+ printf("URB: %s\n", osmo_hexdump(buf, xfer_len));
+ process_usb_msg(ci, buf, xfer_len);
+ msg_count++;
+ byte_count += xfer_len;
+ }
+ // handle remote SIM client fsm
+ // TODO register the USB fd for this select
+ osmo_select_main(true);
+ }
+}
+
+static struct st_transport _transp;
+
+static struct st_slot _slot = {
+ .transp = &_transp,
+ .slot_nr = 0,
+};
+
+struct cardem_inst _ci = {
+ .slot = &_slot,
+};
+
+struct cardem_inst *ci = &_ci;
+
+static void signal_handler(int signal)
+{
+ switch (signal) {
+ case SIGINT:
+ cardem_request_card_insert(ci, false);
+ exit(0);
+ break;
+ default:
+ break;
+ }
+}
+
+/** remsim_client **/
+
+static void push_and_send(struct ipa_client_conn *ipa, struct msgb *msg_tx)
+{
+ ipa_prepend_header_ext(msg_tx, IPAC_PROTO_EXT_RSPRO);
+ ipa_msg_push_header(msg_tx, IPAC_PROTO_OSMO);
+ ipa_client_conn_send(ipa, msg_tx);
+ /* msg_tx is now queued and will be freed. */
+}
+
+void ipa_client_conn_send_rspro(struct ipa_client_conn *ipa, RsproPDU_t *rspro)
+{
+ struct msgb *msg = rspro_enc_msg(rspro);
+ OSMO_ASSERT(msg);
+ push_and_send(ipa, msg);
+}
+
+static int bankd_handle_msg(struct bankd_client *bc, struct msgb *msg)
+{
+ RsproPDU_t *pdu = rspro_dec_msg(msg);
+ if (!pdu) {
+ fprintf(stderr, "Error decoding PDU\n");
+ return -1;
+ }
+
+ switch (pdu->msg.present) {
+ case RsproPDUchoice_PR_connectClientRes:
+ osmo_fsm_inst_dispatch(bc->bankd_fi, BDC_E_CLIENT_CONN_RES, pdu);
+ break;
+ default:
+ fprintf(stderr, "Unknown/Unsuppoerted RSPRO PDU: %s\n", msgb_hexdump(msg));
+ return -1;
+ }
+
+ return 0;
+}
+
+int bankd_read_cb(struct ipa_client_conn *conn, struct msgb *msg)
+{
+ struct ipaccess_head *hh = (struct ipaccess_head *) msg->data;
+ struct ipaccess_head_ext *he = (struct ipaccess_head_ext *) msgb_l2(msg);
+ struct bankd_client *bc = conn->data;
+ int rc;
+
+ if (msgb_length(msg) < sizeof(*hh))
+ goto invalid;
+ msg->l2h = &hh->data[0];
+ if (hh->proto != IPAC_PROTO_OSMO)
+ goto invalid;
+ if (!he || msgb_l2len(msg) < sizeof(*he))
+ goto invalid;
+ msg->l2h = &he->data[0];
+
+ if (he->proto != IPAC_PROTO_EXT_RSPRO)
+ goto invalid;
+
+ printf("Received RSPRO %s\n", msgb_hexdump(msg));
+
+ rc = bankd_handle_msg(bc, msg);
+
+ return rc;
+
+invalid:
+ msgb_free(msg);
+ return -1;
+}
+
+static const struct log_info_cat default_categories[] = {
+ [DMAIN] = {
+ .name = "DMAIN",
+ .loglevel = LOGL_DEBUG,
+ .enabled = 1,
+ },
+};
+
+static const struct log_info log_info = {
+ .cat = default_categories,
+ .num_cat = ARRAY_SIZE(default_categories),
+};
+
+int main(int argc, char **argv)
+{
+ struct st_transport *transp = ci->slot->transp;
+ char *gsmtap_host = "127.0.0.1";
+ int rc;
+ int c, ret = 1;
+ int keep_running = 0;
+ int remote_udp_port = 52342;
+ int if_num = 0, vendor_id = -1, product_id = -1;
+ int config_id = -1, altsetting = 0, addr = -1;
+ char *remote_udp_host = NULL;
+ char *path = NULL;
+
+ print_welcome();
+
+ while (1) {
+ int option_index = 0;
+
+ c = getopt_long(argc, argv, "r:p:hi:V:P:C:I:S:A:H:ak", opts, &option_index);
+ if (c == -1)
+ break;
+ switch (c) {
+ case 'r':
+ remote_udp_host = optarg;
+ break;
+ case 'p':
+ remote_udp_port = atoi(optarg);
+ break;
+ case 'h':
+ print_help();
+ exit(0);
+ break;
+ case 'i':
+ gsmtap_host = optarg;
+ break;
+ case 'k':
+ keep_running = 1;
+ break;
+ case 'V':
+ vendor_id = strtol(optarg, NULL, 16);
+ break;
+ case 'P':
+ product_id = strtol(optarg, NULL, 16);
+ break;
+ case 'C':
+ config_id = atoi(optarg);
+ break;
+ case 'I':
+ if_num = atoi(optarg);
+ break;
+ case 'S':
+ altsetting = atoi(optarg);
+ break;
+ case 'A':
+ addr = atoi(optarg);
+ break;
+ case 'H':
+ path = optarg;
+ break;
+ }
+ }
+
+ if (!remote_udp_host && (vendor_id < 0 || product_id < 0)) {
+ fprintf(stderr, "You have to specify the vendor and product ID\n");
+ goto do_exit;
+ }
+
+ transp->udp_fd = -1;
+
+ if (!remote_udp_host) {
+ rc = libusb_init(NULL);
+ if (rc < 0) {
+ fprintf(stderr, "libusb initialization failed\n");
+ goto do_exit;
+ }
+ } else {
+ transp->udp_fd = osmo_sock_init(AF_INET, SOCK_DGRAM, IPPROTO_UDP,
+ remote_udp_host, remote_udp_port+if_num,
+ OSMO_SOCK_F_CONNECT);
+ if (transp->udp_fd < 0) {
+ fprintf(stderr, "error binding UDP port\n");
+ goto do_exit;
+ }
+ }
+
+ g_gti = gsmtap_source_init(gsmtap_host, GSMTAP_UDP_PORT, 0);
+ if (!g_gti) {
+ perror("unable to open GSMTAP");
+ goto close_exit;
+ }
+ gsmtap_source_add_sink(g_gti);
+
+ signal(SIGINT, &signal_handler);
+
+ // initialize remote SIM client
+ g_tall_ctx = talloc_named_const(NULL, 0, "global");
+
+ osmo_fsm_register(&remsim_client_bankd_fsm);
+ osmo_fsm_register(&remsim_client_server_fsm);
+
+ g_client = talloc_zero(g_tall_ctx, struct bankd_client);
+ g_client->bankd_host = "localhost";
+ g_client->bankd_port = 9999;
+ g_client->own_comp_id.type = ComponentType_remsimClient;
+ g_client->clslot = &(ClientSlot_t){ .clientId = 23, .slotNr = 1 };
+ OSMO_STRLCPY_ARRAY(g_client->own_comp_id.name, "fixme-name");
+ OSMO_STRLCPY_ARRAY(g_client->own_comp_id.software, "remsim-client");
+ OSMO_STRLCPY_ARRAY(g_client->own_comp_id.sw_version, PACKAGE_VERSION);
+
+ asn_debug = 0;
+ osmo_init_logging2(g_tall_ctx, &log_info);
+
+ if (bankd_conn_fsm_alloc(g_client) < 0) {
+ fprintf(stderr, "Unable to connect: %s\n", strerror(errno));
+ exit(1);
+ }
+
+ // connect to SIMtrace2 cardem
+ do {
+ struct usb_interface_match _ifm, *ifm = &_ifm;
+ ifm->vendor = vendor_id;
+ ifm->product = product_id;
+ ifm->configuration = config_id;
+ ifm->interface = if_num;
+ ifm->altsetting = altsetting;
+ ifm->addr = addr;
+ if (path)
+ osmo_strlcpy(ifm->path, path, sizeof(ifm->path));
+ transp->usb_devh = usb_open_claim_interface(NULL, ifm);
+ if (!transp->usb_devh) {
+ fprintf(stderr, "can't open USB device\n");
+ goto close_exit;
+ }
+
+ rc = libusb_claim_interface(transp->usb_devh, if_num);
+ if (rc < 0) {
+ fprintf(stderr, "can't claim interface %d; rc=%d\n", if_num, rc);
+ goto close_exit;
+ }
+
+ rc = get_usb_ep_addrs(transp->usb_devh, if_num, &transp->usb_ep.out,
+ &transp->usb_ep.in, &transp->usb_ep.irq_in);
+ if (rc < 0) {
+ fprintf(stderr, "can't obtain EP addrs; rc=%d\n", rc);
+ goto close_exit;
+ }
+
+ /* simulate card-insert to modem (owhw, not qmod) */
+ cardem_request_card_insert(ci, true);
+
+ /* select remote (forwarded) SIM */
+ st_modem_sim_select_remote(ci->slot);
+
+ /* set the ATR */
+ uint8_t real_atr[] = { 0x3B, 0x00 }; // the shortest simplest ATR possible
+ atr_update_csum(real_atr, sizeof(real_atr));
+ cardem_request_set_atr(ci, real_atr, sizeof(real_atr));
+
+ /* select remote (forwarded) SIM */
+ st_modem_reset_pulse(ci->slot, 300);
+
+ run_mainloop(ci);
+ ret = 0;
+
+ if (transp->udp_fd < 0)
+ libusb_release_interface(transp->usb_devh, 0);
+close_exit:
+ if (transp->usb_devh)
+ libusb_close(transp->usb_devh);
+ if (keep_running)
+ sleep(1);
+ } while (keep_running);
+
+ if (transp->udp_fd < 0)
+ libusb_exit(NULL);
+do_exit:
+ return ret;
+}