| |
| #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 <linux/limits.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <signal.h> |
| #include <getopt.h> |
| |
| #include <libusb.h> |
| |
| #include "simtrace2/libusb_util.h" |
| #include "simtrace2/simtrace_prot.h" |
| #include "simtrace2/simtrace_usb.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; |
| }; |
| |
| /* 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("SIMtrace <- %s\n", msgb_hexdump(msg)); |
| |
| int xfer_len; |
| |
| rc = libusb_bulk_transfer(transp->usb_devh, transp->usb_ep.out, |
| msgb_data(msg), msgb_length(msg), |
| &xfer_len, 100000); |
| |
| 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("SIMtrace <= %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, uint16_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("SIMtrace <= %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("SIMtrace <= %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); |
| } |
| |
| // FIXME check if the ATR actually includes a checksum |
| 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("SIMtrace <= %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("SIMtrace => 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("SIMtrace => 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("SIMtrace => ERROR: %u/%u/%u: %s\n", |
| err->severity, err->subsystem, err->code, |
| err->msg_len ? (char *)err->msg : ""); |
| |
| return 0; |
| } |
| |
| static struct apdu_context ac; // this will hold the complete APDU (across calls) |
| |
| /*! \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) |
| { |
| struct cardemu_usb_msg_rx_data *data = (struct cardemu_usb_msg_rx_data *) buf; // cast the data from the USB message |
| int rc; |
| |
| printf("SIMtrace => 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); // parse the APDU data in the USB message |
| |
| if (rc & APDU_ACT_TX_CAPDU_TO_CARD) { // there is no pending data coming from the modem |
| uint8_t* apdu_command = calloc(1, sizeof(ac.hdr) + ac.lc.tot); // to store the APDU command to send |
| memcpy(apdu_command, &ac.hdr, sizeof(ac.hdr)); // copy APDU command header |
| if (ac.lc.tot) { |
| memcpy(apdu_command + sizeof(ac.hdr), ac.dc, ac.lc.tot); // copy APDU command data |
| } |
| // send APDU to card |
| RsproPDU_t *pdu = rspro_gen_TpduModem2Card(g_client->clslot, &(BankSlot_t){ .bankId = 0, .slotNr = 0}, apdu_command, sizeof(ac.hdr) + ac.lc.tot); // create RSPRO packet |
| ipa_client_conn_send_rspro(g_client->bankd_conn, pdu); // send RSPRO packet |
| // the response will come separately |
| free(apdu_command); |
| } else if (ac.lc.tot > ac.lc.cur) { // there is pending data from the modem |
| cardem_request_pb_and_rx(ci, ac.hdr.ins, ac.lc.tot - ac.lc.cur); // send procedure byte to get remaining data |
| } |
| 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("SIMtrace -> %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 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: %s\n", libusb_error_name(rc)); |
| return; |
| } |
| /* dispatch any incoming data */ |
| if (xfer_len > 0) { |
| 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 int bankd_handle_tpduCardToModem(struct bankd_client *bc, RsproPDU_t *pdu) |
| { |
| OSMO_ASSERT(pdu); |
| OSMO_ASSERT(RsproPDUchoice_PR_tpduCardToModem == pdu->msg.present); |
| |
| const struct TpduCardToModem *card2modem = &pdu->msg.choice.tpduCardToModem; |
| if (card2modem->data.size < 2) { // at least the two SW bytes are needed |
| return -1; |
| } |
| |
| // save SW to our current APDU context |
| ac.sw[0] = card2modem->data.buf[card2modem->data.size - 2]; |
| ac.sw[1] = card2modem->data.buf[card2modem->data.size - 1]; |
| printf("SIMtrace <= SW=0x%02x%02x, len_rx=%d\n", ac.sw[0], ac.sw[1], card2modem->data.size - 2); |
| if (card2modem->data.size > 2) { // send PB and data to modem |
| cardem_request_pb_and_tx(ci, ac.hdr.ins, card2modem->data.buf, card2modem->data.size - 2); |
| } |
| cardem_request_sw_tx(ci, ac.sw); // send SW to modem |
| |
| return 0; |
| } |
| |
| 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; |
| case RsproPDUchoice_PR_tpduCardToModem: // APDU response from card received |
| bankd_handle_tpduCardToModem(bc, 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), |
| }; |
| |
| static void print_welcome(void) |
| { |
| printf("simtrace2-remsim-client - Remote SIM card client for SIMtrace\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-d\t--bankd-host HOST\n" |
| "\t-p\t--bankd-port PORT\n" |
| "\t-c\t--client-id REMSIM_CLIENT_ID\n" |
| "\t-s\t--slot-nr REMSIM_SLOT_NUMBER\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" |
| "\t-a\t--atr\tATR\n" |
| "\n" |
| ); |
| } |
| |
| static const struct option opts[] = { |
| { "bankd-host", 1, 0, 'b' }, |
| { "bankd-port", 1, 0, 'p' }, |
| { "client-id", 1, 0, 'c' }, |
| { "slot-nr", 1, 0, 's' }, |
| { "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' }, |
| { "atr", 1, 0, 'a' }, |
| { NULL, 0, 0, 0 } |
| }; |
| |
| 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 bankd_port = 9999; |
| int client_id = -1, slot_nr = -1; |
| int if_num = 0, vendor_id = -1, product_id = -1; |
| int config_id = -1, altsetting = 0, addr = -1; |
| char *bankd_host = "127.0.0.1"; |
| char *path = NULL; |
| uint8_t atr_data[33] = { 0x3B, 0x00 }; // the shortest simplest ATR possible |
| uint8_t atr_len = 2; |
| |
| print_welcome(); |
| |
| while (1) { |
| int option_index = 0; |
| |
| c = getopt_long(argc, argv, "b:p:c:s:hi:V:P:C:I:S:A:H:a:k", opts, &option_index); |
| if (c == -1) |
| break; |
| switch (c) { |
| case 'b': |
| bankd_host = optarg; |
| break; |
| case 'p': |
| bankd_port = atoi(optarg); |
| break; |
| case 'c': |
| client_id = atoi(optarg); |
| break; |
| case 's': |
| slot_nr = 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; |
| case 'a': |
| rc = osmo_hexparse(optarg, atr_data, ARRAY_SIZE(atr_data)); |
| if (rc < 2 || rc > ARRAY_SIZE(atr_data)) { |
| fprintf(stderr, "ATR matlformed\n"); |
| goto do_exit; |
| } |
| atr_len = rc; |
| break; |
| } |
| } |
| |
| if (vendor_id < 0 || product_id < 0) { |
| fprintf(stderr, "You have to specify the vendor and product ID\n"); |
| goto do_exit; |
| } |
| |
| if (client_id < 0 || slot_nr < 0) { |
| fprintf(stderr, "You have to specify the remote SIM client ID and slot number\n"); |
| goto do_exit; |
| } |
| |
| rc = libusb_init(NULL); |
| if (rc < 0) { |
| fprintf(stderr, "libusb initialization failed\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"); |
| |
| g_client = talloc_zero(g_tall_ctx, struct bankd_client); |
| g_client->bankd_host = bankd_host; |
| g_client->bankd_port = bankd_port; |
| g_client->own_comp_id.type = ComponentType_remsimClient; |
| g_client->clslot = &(ClientSlot_t){ .clientId = client_id, .slotNr = slot_nr }; |
| OSMO_STRLCPY_ARRAY(g_client->own_comp_id.name, "simtrace2-remsim-client"); |
| 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; |
| } |
| |
| // switch modem SIM port to emulated SIM on OWHW |
| if (USB_VENDOR_OPENMOKO == ifm->vendor && USB_PRODUCT_OWHW_SAM3 == ifm->product) { // we are on the OWHW |
| int modem = -1; |
| switch (ifm->interface) { // the USB interface indicates for which modem we want to emulate the SIM |
| case 0: |
| modem = 1; |
| break; |
| case 1: |
| modem = 2; |
| break; |
| default: |
| fprintf(stderr, "unknown GPIO for SIMtrace interface %d\n", ifm->interface); |
| goto close_exit; |
| } |
| // |
| char gpio_path[PATH_MAX]; |
| snprintf(gpio_path, sizeof(gpio_path), "/dev/gpio/connect_st_usim%d/value", modem); |
| int connec_st_usim = open(gpio_path, O_WRONLY); |
| if (-1 == connec_st_usim) { |
| fprintf(stderr, "can't open GPIO %s to switch modem %d to emulated USIM\n", gpio_path, modem); |
| goto close_exit; |
| } |
| if (1 != write(connec_st_usim, "1", 1)) { |
| fprintf(stderr, "can't write GPIO %s to switch modem %d to emulated USIM\n", gpio_path, modem); |
| goto close_exit; |
| } |
| printf("switched modem %d to emulated USIM\n", modem); |
| |
| snprintf(gpio_path, sizeof(gpio_path), "/dev/gpio/mdm%d_rst/value", modem); |
| int mdm_rst = open(gpio_path, O_WRONLY); |
| if (-1 == mdm_rst) { |
| fprintf(stderr, "can't open GPIO %s to reset modem %d\n", gpio_path, modem); |
| goto close_exit; |
| } |
| if (1 != write(mdm_rst, "1", 1)) { |
| fprintf(stderr, "can't write GPIO %s to reset modem %d\n", gpio_path, modem); |
| goto close_exit; |
| } |
| sleep(1); // wait a bit to ensure reset is effective |
| if (1 != write(mdm_rst, "0", 1)) { |
| fprintf(stderr, "can't write GPIO %s to reset modem %d\n", gpio_path, modem); |
| goto close_exit; |
| } |
| printf("modem %d reset\n", modem); |
| } |
| |
| /* 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 */ |
| //atr_update_csum(real_atr, sizeof(real_atr)); |
| cardem_request_set_atr(ci, atr_data, atr_len); |
| |
| /* select remote (forwarded) SIM */ |
| st_modem_reset_pulse(ci->slot, 300); |
| |
| run_mainloop(ci); |
| ret = 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); |
| |
| libusb_exit(NULL); |
| do_exit: |
| return ret; |
| } |