Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 1 | /* simtrace2-remsim - main program for the host PC to provide a remote SIM |
| 2 | * using the SIMtrace 2 firmware in card emulation mode |
| 3 | * |
| 4 | * (C) 2016-2017 by Harald Welte <hwelte@hmw-consulting.de> |
| 5 | * (C) 2018, sysmocom -s.f.m.c. GmbH, Author: Kevin Redon <kredon@sysmocom.de> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License |
| 9 | * as published by the Free Software Foundation; either version 2 |
| 10 | * of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 20 | */ |
| 21 | |
| 22 | #include <errno.h> |
| 23 | #include <unistd.h> |
| 24 | #include <stdio.h> |
| 25 | #include <stdlib.h> |
| 26 | #include <string.h> |
| 27 | #include <stdint.h> |
| 28 | #include <signal.h> |
| 29 | #include <time.h> |
| 30 | #define _GNU_SOURCE |
| 31 | #include <getopt.h> |
| 32 | |
| 33 | #include <sys/time.h> |
| 34 | #include <sys/types.h> |
| 35 | #include <sys/socket.h> |
| 36 | #include <netinet/in.h> |
| 37 | #include <arpa/inet.h> |
| 38 | |
| 39 | #include <libusb.h> |
| 40 | |
| 41 | #include <osmocom/simtrace2/libusb_util.h> |
| 42 | #include <osmocom/simtrace2/simtrace2_api.h> |
| 43 | #include <osmocom/simtrace2/simtrace_prot.h> |
| 44 | #include <osmocom/simtrace2/apdu_dispatch.h> |
| 45 | #include <osmocom/simtrace2/gsmtap.h> |
| 46 | |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 47 | #include <osmocom/core/utils.h> |
| 48 | #include <osmocom/core/socket.h> |
| 49 | #include <osmocom/core/msgb.h> |
| 50 | #include <osmocom/sim/class_tables.h> |
| 51 | #include <osmocom/sim/sim.h> |
| 52 | |
| 53 | static void atr_update_csum(uint8_t *atr, unsigned int atr_len) |
| 54 | { |
| 55 | uint8_t csum = 0; |
| 56 | int i; |
| 57 | |
| 58 | for (i = 1; i < atr_len - 1; i++) |
| 59 | csum = csum ^ atr[i]; |
| 60 | |
| 61 | atr[atr_len-1] = csum; |
| 62 | } |
| 63 | |
| 64 | /*********************************************************************** |
| 65 | * Incoming Messages |
| 66 | ***********************************************************************/ |
| 67 | |
| 68 | /*! \brief Process a STATUS message from the SIMtrace2 */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 69 | static int process_do_status(struct osmo_st2_cardem_inst *ci, uint8_t *buf, int len) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 70 | { |
| 71 | struct cardemu_usb_msg_status *status; |
| 72 | status = (struct cardemu_usb_msg_status *) buf; |
| 73 | |
| 74 | printf("=> STATUS: flags=0x%x, fi=%u, di=%u, wi=%u wtime=%u\n", |
| 75 | status->flags, status->fi, status->di, status->wi, |
| 76 | status->waiting_time); |
| 77 | |
| 78 | return 0; |
| 79 | } |
| 80 | |
| 81 | /*! \brief Process a PTS indication message from the SIMtrace2 */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 82 | static int process_do_pts(struct osmo_st2_cardem_inst *ci, uint8_t *buf, int len) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 83 | { |
| 84 | struct cardemu_usb_msg_pts_info *pts; |
| 85 | pts = (struct cardemu_usb_msg_pts_info *) buf; |
| 86 | |
| 87 | printf("=> PTS req: %s\n", osmo_hexdump(pts->req, sizeof(pts->req))); |
| 88 | |
| 89 | return 0; |
| 90 | } |
| 91 | |
| 92 | /*! \brief Process a RX-DATA indication message from the SIMtrace2 */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 93 | static int process_do_rx_da(struct osmo_st2_cardem_inst *ci, uint8_t *buf, int len) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 94 | { |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 95 | static struct osmo_apdu_context ac; |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 96 | struct cardemu_usb_msg_rx_data *data; |
| 97 | int rc; |
| 98 | |
| 99 | data = (struct cardemu_usb_msg_rx_data *) buf; |
| 100 | |
| 101 | printf("=> DATA: flags=%x, %s: ", data->flags, |
| 102 | osmo_hexdump(data->data, data->data_len)); |
| 103 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 104 | rc = osmo_apdu_segment_in(&ac, data->data, data->data_len, |
| 105 | data->flags & CEMU_DATA_F_TPDU_HDR); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 106 | |
| 107 | if (rc & APDU_ACT_TX_CAPDU_TO_CARD) { |
| 108 | struct msgb *tmsg = msgb_alloc(1024, "TPDU"); |
| 109 | struct osim_reader_hdl *rh = ci->chan->card->reader; |
| 110 | uint8_t *cur; |
| 111 | |
| 112 | /* Copy TPDU header */ |
| 113 | cur = msgb_put(tmsg, sizeof(ac.hdr)); |
| 114 | memcpy(cur, &ac.hdr, sizeof(ac.hdr)); |
| 115 | /* Copy D(c), if any */ |
| 116 | if (ac.lc.tot) { |
| 117 | cur = msgb_put(tmsg, ac.lc.tot); |
| 118 | memcpy(cur, ac.dc, ac.lc.tot); |
| 119 | } |
| 120 | /* send to actual card */ |
| 121 | tmsg->l3h = tmsg->tail; |
| 122 | rc = rh->ops->transceive(rh, tmsg); |
| 123 | if (rc < 0) { |
| 124 | fprintf(stderr, "error during transceive: %d\n", rc); |
| 125 | msgb_free(tmsg); |
| 126 | return rc; |
| 127 | } |
| 128 | msgb_apdu_sw(tmsg) = msgb_get_u16(tmsg); |
| 129 | ac.sw[0] = msgb_apdu_sw(tmsg) >> 8; |
| 130 | ac.sw[1] = msgb_apdu_sw(tmsg) & 0xff; |
| 131 | printf("SW=0x%04x, len_rx=%d\n", msgb_apdu_sw(tmsg), msgb_l3len(tmsg)); |
| 132 | if (msgb_l3len(tmsg)) |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 133 | osmo_st2_cardem_request_pb_and_tx(ci, ac.hdr.ins, tmsg->l3h, msgb_l3len(tmsg)); |
| 134 | osmo_st2_cardem_request_sw_tx(ci, ac.sw); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 135 | } else if (ac.lc.tot > ac.lc.cur) { |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 136 | osmo_st2_cardem_request_pb_and_rx(ci, ac.hdr.ins, ac.lc.tot - ac.lc.cur); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 137 | } |
| 138 | return 0; |
| 139 | } |
| 140 | |
| 141 | /*! \brief Process an incoming message from the SIMtrace2 */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 142 | static int process_usb_msg(struct osmo_st2_cardem_inst *ci, uint8_t *buf, int len) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 143 | { |
| 144 | struct simtrace_msg_hdr *sh = (struct simtrace_msg_hdr *)buf; |
| 145 | int rc; |
| 146 | |
| 147 | printf("-> %s\n", osmo_hexdump(buf, len)); |
| 148 | |
| 149 | buf += sizeof(*sh); |
| 150 | |
| 151 | switch (sh->msg_type) { |
| 152 | case SIMTRACE_MSGT_BD_CEMU_STATUS: |
| 153 | rc = process_do_status(ci, buf, len); |
| 154 | break; |
| 155 | case SIMTRACE_MSGT_DO_CEMU_PTS: |
| 156 | rc = process_do_pts(ci, buf, len); |
| 157 | break; |
| 158 | case SIMTRACE_MSGT_DO_CEMU_RX_DATA: |
| 159 | rc = process_do_rx_da(ci, buf, len); |
| 160 | break; |
| 161 | default: |
| 162 | printf("unknown simtrace msg type 0x%02x\n", sh->msg_type); |
| 163 | rc = -1; |
| 164 | break; |
| 165 | } |
| 166 | |
| 167 | return rc; |
| 168 | } |
| 169 | |
| 170 | static void print_welcome(void) |
| 171 | { |
| 172 | printf("simtrace2-remsim - Remote SIM card forwarding\n" |
| 173 | "(C) 2010-2017, Harald Welte <laforge@gnumonks.org>\n" |
| 174 | "(C) 2018, sysmocom -s.f.m.c. GmbH, Author: Kevin Redon <kredon@sysmocom.de>\n\n"); |
| 175 | } |
| 176 | |
| 177 | static void print_help(void) |
| 178 | { |
| 179 | printf( "\t-r\t--remote-udp-host HOST\n" |
| 180 | "\t-p\t--remote-udp-port PORT\n" |
| 181 | "\t-h\t--help\n" |
| 182 | "\t-i\t--gsmtap-ip\tA.B.C.D\n" |
| 183 | "\t-a\t--skip-atr\n" |
| 184 | "\t-k\t--keep-running\n" |
| 185 | "\t-V\t--usb-vendor\tVENDOR_ID\n" |
| 186 | "\t-P\t--usb-product\tPRODUCT_ID\n" |
| 187 | "\t-C\t--usb-config\tCONFIG_ID\n" |
| 188 | "\t-I\t--usb-interface\tINTERFACE_ID\n" |
| 189 | "\t-S\t--usb-altsetting ALTSETTING_ID\n" |
| 190 | "\t-A\t--usb-address\tADDRESS\n" |
| 191 | "\t-H\t--usb-path\tPATH\n" |
| 192 | "\n" |
| 193 | ); |
| 194 | } |
| 195 | |
| 196 | static const struct option opts[] = { |
| 197 | { "remote-udp-host", 1, 0, 'r' }, |
| 198 | { "remote-udp-port", 1, 0, 'p' }, |
| 199 | { "gsmtap-ip", 1, 0, 'i' }, |
| 200 | { "skip-atr", 0, 0, 'a' }, |
| 201 | { "help", 0, 0, 'h' }, |
| 202 | { "keep-running", 0, 0, 'k' }, |
| 203 | { "usb-vendor", 1, 0, 'V' }, |
| 204 | { "usb-product", 1, 0, 'P' }, |
| 205 | { "usb-config", 1, 0, 'C' }, |
| 206 | { "usb-interface", 1, 0, 'I' }, |
| 207 | { "usb-altsetting", 1, 0, 'S' }, |
| 208 | { "usb-address", 1, 0, 'A' }, |
| 209 | { "usb-path", 1, 0, 'H' }, |
| 210 | { NULL, 0, 0, 0 } |
| 211 | }; |
| 212 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 213 | static void run_mainloop(struct osmo_st2_cardem_inst *ci) |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 214 | { |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 215 | struct osmo_st2_transport *transp = ci->slot->transp; |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 216 | unsigned int msg_count, byte_count = 0; |
| 217 | uint8_t buf[16*265]; |
| 218 | int xfer_len; |
| 219 | int rc; |
| 220 | |
| 221 | printf("Entering main loop\n"); |
| 222 | |
| 223 | while (1) { |
| 224 | /* read data from SIMtrace2 device (local or via USB) */ |
| 225 | if (transp->udp_fd < 0) { |
| 226 | rc = libusb_bulk_transfer(transp->usb_devh, transp->usb_ep.in, |
| 227 | buf, sizeof(buf), &xfer_len, 100); |
| 228 | if (rc < 0 && rc != LIBUSB_ERROR_TIMEOUT && |
| 229 | rc != LIBUSB_ERROR_INTERRUPTED && |
| 230 | rc != LIBUSB_ERROR_IO) { |
| 231 | fprintf(stderr, "BULK IN transfer error; rc=%d\n", rc); |
| 232 | return; |
| 233 | } |
| 234 | } else { |
| 235 | rc = read(transp->udp_fd, buf, sizeof(buf)); |
| 236 | if (rc <= 0) { |
| 237 | fprintf(stderr, "shor read from UDP\n"); |
| 238 | return; |
| 239 | } |
| 240 | xfer_len = rc; |
| 241 | } |
| 242 | /* dispatch any incoming data */ |
| 243 | if (xfer_len > 0) { |
| 244 | printf("URB: %s\n", osmo_hexdump(buf, xfer_len)); |
| 245 | process_usb_msg(ci, buf, xfer_len); |
| 246 | msg_count++; |
| 247 | byte_count += xfer_len; |
| 248 | } |
| 249 | } |
| 250 | } |
| 251 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 252 | static struct osmo_st2_transport _transp; |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 253 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 254 | static struct osmo_st2_slot _slot = { |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 255 | .transp = &_transp, |
| 256 | .slot_nr = 0, |
| 257 | }; |
| 258 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 259 | struct osmo_st2_cardem_inst _ci = { |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 260 | .slot = &_slot, |
| 261 | }; |
| 262 | |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 263 | struct osmo_st2_cardem_inst *ci = &_ci; |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 264 | |
| 265 | static void signal_handler(int signal) |
| 266 | { |
| 267 | switch (signal) { |
| 268 | case SIGINT: |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 269 | osmo_st2_cardem_request_card_insert(ci, false); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 270 | exit(0); |
| 271 | break; |
| 272 | default: |
| 273 | break; |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | int main(int argc, char **argv) |
| 278 | { |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 279 | struct osmo_st2_transport *transp = ci->slot->transp; |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 280 | char *gsmtap_host = "127.0.0.1"; |
| 281 | int rc; |
| 282 | int c, ret = 1; |
| 283 | int skip_atr = 0; |
| 284 | int keep_running = 0; |
| 285 | int remote_udp_port = 52342; |
| 286 | int if_num = 0, vendor_id = -1, product_id = -1; |
| 287 | int config_id = -1, altsetting = 0, addr = -1; |
| 288 | char *remote_udp_host = NULL; |
| 289 | char *path = NULL; |
| 290 | struct osim_reader_hdl *reader; |
| 291 | struct osim_card_hdl *card; |
| 292 | |
| 293 | print_welcome(); |
| 294 | |
| 295 | while (1) { |
| 296 | int option_index = 0; |
| 297 | |
| 298 | c = getopt_long(argc, argv, "r:p:hi:V:P:C:I:S:A:H:ak", opts, &option_index); |
| 299 | if (c == -1) |
| 300 | break; |
| 301 | switch (c) { |
| 302 | case 'r': |
| 303 | remote_udp_host = optarg; |
| 304 | break; |
| 305 | case 'p': |
| 306 | remote_udp_port = atoi(optarg); |
| 307 | break; |
| 308 | case 'h': |
| 309 | print_help(); |
| 310 | exit(0); |
| 311 | break; |
| 312 | case 'i': |
| 313 | gsmtap_host = optarg; |
| 314 | break; |
| 315 | case 'a': |
| 316 | skip_atr = 1; |
| 317 | break; |
| 318 | case 'k': |
| 319 | keep_running = 1; |
| 320 | break; |
| 321 | case 'V': |
| 322 | vendor_id = strtol(optarg, NULL, 16); |
| 323 | break; |
| 324 | case 'P': |
| 325 | product_id = strtol(optarg, NULL, 16); |
| 326 | break; |
| 327 | case 'C': |
| 328 | config_id = atoi(optarg); |
| 329 | break; |
| 330 | case 'I': |
| 331 | if_num = atoi(optarg); |
| 332 | break; |
| 333 | case 'S': |
| 334 | altsetting = atoi(optarg); |
| 335 | break; |
| 336 | case 'A': |
| 337 | addr = atoi(optarg); |
| 338 | break; |
| 339 | case 'H': |
| 340 | path = optarg; |
| 341 | break; |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | if (!remote_udp_host && (vendor_id < 0 || product_id < 0)) { |
| 346 | fprintf(stderr, "You have to specify the vendor and product ID\n"); |
| 347 | goto do_exit; |
| 348 | } |
| 349 | |
| 350 | transp->udp_fd = -1; |
| 351 | |
| 352 | ci->card_prof = &osim_uicc_sim_cic_profile; |
| 353 | |
| 354 | if (!remote_udp_host) { |
| 355 | rc = libusb_init(NULL); |
| 356 | if (rc < 0) { |
| 357 | fprintf(stderr, "libusb initialization failed\n"); |
| 358 | goto do_exit; |
| 359 | } |
| 360 | } else { |
| 361 | transp->udp_fd = osmo_sock_init(AF_INET, SOCK_DGRAM, IPPROTO_UDP, |
| 362 | remote_udp_host, remote_udp_port+if_num, |
| 363 | OSMO_SOCK_F_CONNECT); |
| 364 | if (transp->udp_fd < 0) { |
| 365 | fprintf(stderr, "error binding UDP port\n"); |
| 366 | goto do_exit; |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | rc = osmo_st2_gsmtap_init(gsmtap_host); |
| 371 | if (rc < 0) { |
| 372 | perror("unable to open GSMTAP"); |
| 373 | goto close_exit; |
| 374 | } |
| 375 | |
| 376 | reader = osim_reader_open(OSIM_READER_DRV_PCSC, 0, "", NULL); |
| 377 | if (!reader) { |
| 378 | perror("unable to open PC/SC reader"); |
| 379 | goto close_exit; |
| 380 | } |
| 381 | |
| 382 | card = osim_card_open(reader, OSIM_PROTO_T0); |
| 383 | if (!card) { |
| 384 | perror("unable to open SIM card"); |
| 385 | goto close_exit; |
| 386 | } |
| 387 | |
| 388 | ci->chan = llist_entry(card->channels.next, struct osim_chan_hdl, list); |
| 389 | if (!ci->chan) { |
| 390 | perror("SIM card has no channel?!?"); |
| 391 | goto close_exit; |
| 392 | } |
| 393 | |
| 394 | signal(SIGINT, &signal_handler); |
| 395 | |
| 396 | do { |
| 397 | if (transp->udp_fd < 0) { |
| 398 | struct usb_interface_match _ifm, *ifm = &_ifm; |
| 399 | ifm->vendor = vendor_id; |
| 400 | ifm->product = product_id; |
| 401 | ifm->configuration = config_id; |
| 402 | ifm->interface = if_num; |
| 403 | ifm->altsetting = altsetting; |
| 404 | ifm->addr = addr; |
| 405 | if (path) |
| 406 | osmo_strlcpy(ifm->path, path, sizeof(ifm->path)); |
| 407 | transp->usb_devh = usb_open_claim_interface(NULL, ifm); |
| 408 | if (!transp->usb_devh) { |
| 409 | fprintf(stderr, "can't open USB device\n"); |
| 410 | goto close_exit; |
| 411 | } |
| 412 | |
| 413 | rc = libusb_claim_interface(transp->usb_devh, if_num); |
| 414 | if (rc < 0) { |
| 415 | fprintf(stderr, "can't claim interface %d; rc=%d\n", if_num, rc); |
| 416 | goto close_exit; |
| 417 | } |
| 418 | |
| 419 | rc = get_usb_ep_addrs(transp->usb_devh, if_num, &transp->usb_ep.out, |
| 420 | &transp->usb_ep.in, &transp->usb_ep.irq_in); |
| 421 | if (rc < 0) { |
| 422 | fprintf(stderr, "can't obtain EP addrs; rc=%d\n", rc); |
| 423 | goto close_exit; |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | /* simulate card-insert to modem (owhw, not qmod) */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 428 | osmo_st2_cardem_request_card_insert(ci, true); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 429 | |
| 430 | /* select remote (forwarded) SIM */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 431 | osmo_st2_modem_sim_select_remote(ci->slot); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 432 | |
| 433 | if (!skip_atr) { |
| 434 | /* set the ATR */ |
Kévin Redon | 24c6fe2 | 2019-12-02 19:35:45 +0100 | [diff] [blame] | 435 | uint8_t real_atr[] = { 0x3B, 0x00 }; // the simplest ATR |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 436 | atr_update_csum(real_atr, sizeof(real_atr)); |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 437 | osmo_st2_cardem_request_set_atr(ci, real_atr, sizeof(real_atr)); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 438 | } |
| 439 | |
| 440 | /* select remote (forwarded) SIM */ |
Harald Welte | 208890a | 2019-11-24 22:46:51 +0100 | [diff] [blame] | 441 | osmo_st2_modem_reset_pulse(ci->slot, 300); |
Harald Welte | 964cda3 | 2019-11-24 22:27:10 +0100 | [diff] [blame] | 442 | |
| 443 | run_mainloop(ci); |
| 444 | ret = 0; |
| 445 | |
| 446 | if (transp->udp_fd < 0) |
| 447 | libusb_release_interface(transp->usb_devh, 0); |
| 448 | close_exit: |
| 449 | if (transp->usb_devh) |
| 450 | libusb_close(transp->usb_devh); |
| 451 | if (keep_running) |
| 452 | sleep(1); |
| 453 | } while (keep_running); |
| 454 | |
| 455 | if (transp->udp_fd < 0) |
| 456 | libusb_exit(NULL); |
| 457 | do_exit: |
| 458 | return ret; |
| 459 | } |