src/host/layer23/src/mobile/app_mobile.c

   1 /* "Application" code of the layer2/3 stack */
   2
   3 /* (C) 2010 by Holger Hans Peter Freyther
   4  * (C) 2010 by Harald Welte <laforge@gnumonks.org>
   5  * (C) 2010 by Andreas Eversberg <jolly@eversberg.eu>
   6  *
   7  * All Rights Reserved
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  22  *
  23  */
  24
  25 #include <errno.h>
  26 #include <signal.h>
  27 #include <time.h>
  28
  29 #include <osmocom/bb/common/osmocom_data.h>
  30 #include <osmocom/bb/common/l1ctl.h>
  31 #include <osmocom/bb/common/l23_app.h>
  32 #include <osmocom/bb/common/lapdm.h>
  33 #include <osmocom/bb/common/logging.h>
  34 #include <osmocom/bb/common/gps.h>
  35 #include <osmocom/bb/mobile/gsm48_rr.h>
  36 #include <osmocom/bb/mobile/vty.h>
  37 #include <osmocom/vty/telnet_interface.h>
  38
  39 #include <osmocore/msgb.h>
  40 #include <osmocore/talloc.h>
  41 #include <osmocore/select.h>
  42 #include <osmocore/signal.h>
  43
  44 extern struct log_target *stderr_target;
  45 static const char *config_file = "/etc/osmocom/osmocom.cfg";
  46 extern void *l23_ctx;
  47 extern unsigned short vty_port;
  48 extern int vty_reading;
  49
  50 int mobile_started = 0;
  51
  52 int mncc_recv_mobile(struct osmocom_ms *ms, int msg_type, void *arg);
  53 int mncc_recv_dummy(struct osmocom_ms *ms, int msg_type, void *arg);
  54
  55 int mobile_work(struct osmocom_ms *ms)
  56 {
  57         int work = 0, w;
  58
  59         do {
  60                 w = 0;
  61                 w |= gsm48_rsl_dequeue(ms);
  62                 w |= gsm48_rr_dequeue(ms);
  63                 w |= gsm48_mmxx_dequeue(ms);
  64                 w |= gsm48_mmr_dequeue(ms);
  65                 w |= gsm48_mmevent_dequeue(ms);
  66                 w |= gsm322_plmn_dequeue(ms);
  67                 w |= gsm322_cs_dequeue(ms);
  68                 w |= gsm_sim_job_dequeue(ms);
  69                 w |= mncc_dequeue(ms);
  70                 if (w)
  71                         work = 1;
  72         } while (w);
  73         return work;
  74 }
  75
  76 static int signal_cb(unsigned int subsys, unsigned int signal,
  77                      void *handler_data, void *signal_data)
  78 {
  79         struct osmocom_ms *ms;
  80         struct gsm_settings *set;
  81         struct msgb *nmsg;
  82
  83         if (subsys != SS_L1CTL)
  84                 return 0;
  85
  86         switch (signal) {
  87         case S_L1CTL_RESET:
  88                 if (mobile_started)
  89                         break;
  90
  91                 ms = signal_data;
  92                 set = &ms->settings;
  93
  94                 /* insert test card, if enabled */
  95                 switch (set->sim_type) {
  96                 case GSM_SIM_TYPE_READER:
  97                         /* trigger sim card reader process */
  98                         gsm_subscr_simcard(ms);
  99                         break;
 100                 case GSM_SIM_TYPE_TEST:
 101                         gsm_subscr_testcard(ms, set->test_rplmn_mcc,
 102                                                 set->test_rplmn_mnc);
 103                         break;
 104                 default:
 105                         /* no SIM, trigger PLMN selection process */
 106                         nmsg = gsm322_msgb_alloc(GSM322_EVENT_SWITCH_ON);
 107                         if (!nmsg)
 108                                 return -ENOMEM;
 109                         gsm322_plmn_sendmsg(ms, nmsg);
 110                         nmsg = gsm322_msgb_alloc(GSM322_EVENT_SWITCH_ON);
 111                         if (!nmsg)
 112                                 return -ENOMEM;
 113                         gsm322_cs_sendmsg(ms, nmsg);
 114                 }
 115
 116                 mobile_started = 1;
 117         }
 118         return 0;
 119 }
 120
 121 int mobile_exit(struct osmocom_ms *ms)
 122 {
 123         struct gsm48_mmlayer *mm = &ms->mmlayer;
 124
 125         if (!mm->power_off && mobile_started) {
 126                 struct msgb *nmsg;
 127
 128                 mm->power_off = 1;
 129                 nmsg = gsm48_mmevent_msgb_alloc(GSM48_MM_EVENT_IMSI_DETACH);
 130                 if (!nmsg)
 131                         return -ENOMEM;
 132                 gsm48_mmevent_msg(mm->ms, nmsg);
 133
 134                 return -EBUSY;
 135         }
 136
 137         /* in case there is a lockup during exit */
 138         signal(SIGINT, SIG_DFL);
 139         signal(SIGHUP, SIG_DFL);
 140         signal(SIGTERM, SIG_DFL);
 141         signal(SIGPIPE, SIG_DFL);
 142
 143         unregister_signal_handler(SS_L1CTL, &signal_cb, NULL);
 144         gps_close();
 145         gsm322_exit(ms);
 146         gsm48_mm_exit(ms);
 147         gsm48_rr_exit(ms);
 148         gsm_subscr_exit(ms);
 149         gsm48_cc_exit(ms);
 150         gsm_sim_exit(ms);
 151         gsm_settings_exit(ms);
 152
 153         printf("Power off!\n");
 154
 155         return 0;
 156 }
 157
 158 static struct vty_app_info vty_info = {
 159         .name = "OsmocomBB",
 160         .version = PACKAGE_VERSION,
 161         .go_parent_cb = ms_vty_go_parent,
 162 };
 163
 164 int l23_app_init(struct osmocom_ms *ms)
 165 {
 166         int rc;
 167         struct telnet_connection dummy_conn;
 168
 169 //      log_parse_category_mask(stderr_target, "DL1C:DRSL:DLAPDM:DCS:DPLMN:DRR:DMM:DSIM:DCC:DMNCC:DPAG:DSUM");
 170         log_parse_category_mask(stderr_target, "DCS:DPLMN:DRR:DMM:DSIM:DCC:DMNCC:DPAG:DSUM");
 171         log_set_log_level(stderr_target, LOGL_INFO);
 172
 173         srand(time(NULL));
 174
 175         gps_init();
 176         gsm_support_init(ms);
 177         gsm_sim_init(ms);
 178         gsm_settings_init(ms);
 179         gsm48_cc_init(ms);
 180         gsm_subscr_init(ms);
 181         gsm48_rr_init(ms);
 182         gsm48_mm_init(ms);
 183         INIT_LLIST_HEAD(&ms->trans_list);
 184         gsm322_init(ms);
 185
 186         l23_app_work = mobile_work;
 187         register_signal_handler(SS_L1CTL, &signal_cb, NULL);
 188         l23_app_exit = mobile_exit;
 189
 190         vty_init(&vty_info);
 191         ms_vty_init();
 192         dummy_conn.priv = NULL;
 193         vty_reading = 1;
 194         rc = vty_read_config_file(config_file, &dummy_conn);
 195         if (rc < 0) {
 196                 fprintf(stderr, "Failed to parse the config file: '%s'\n",
 197                         config_file);
 198                 fprintf(stderr, "Please check or create config file using: "
 199                         "'touch %s'\n", config_file);
 200                 return rc;
 201         }
 202         vty_reading = 0;
 203         telnet_init(l23_ctx, NULL, vty_port);
 204         if (rc < 0)
 205                 return rc;
 206
 207         if (ms->settings.ch_cap == GSM_CAP_SDCCH)
 208                 ms->cclayer.mncc_recv = mncc_recv_dummy;
 209         else
 210                 ms->cclayer.mncc_recv = mncc_recv_mobile;
 211
 212         printf("VTY available on port %u.\n", vty_port);
 213
 214         gsm_random_imei(&ms->settings);
 215
 216         l1ctl_tx_reset_req(ms, L1CTL_RES_T_FULL);
 217         printf("Mobile initialized, please start phone now!\n");
 218         return 0;
 219 }
 220