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/mobile/gsm48_rr.h>
  35 #include <osmocom/bb/mobile/sysinfo.h>
  36 #include <osmocom/bb/mobile/vty.h>
  37 #include <osmocom/bb/mobile/gps.h>
  38 #include <osmocom/vty/telnet_interface.h>
  39
  40 #include <osmocore/msgb.h>
  41 #include <osmocore/talloc.h>
  42 #include <osmocore/select.h>
  43 #include <osmocore/signal.h>
  44
  45 extern struct log_target *stderr_target;
  46 static const char *config_file = "/etc/osmocom/osmocom.cfg";
  47 extern void *l23_ctx;
  48 extern unsigned short vty_port;
  49
  50 int mobile_started = 0;
  51
  52 int mncc_recv_mobile(struct osmocom_ms *ms, int msg_type, void *arg);
  53
  54 int mobile_work(struct osmocom_ms *ms)
  55 {
  56         int work = 0, w;
  57
  58         do {
  59                 w = 0;
  60                 w |= gsm48_rsl_dequeue(ms);
  61                 w |= gsm48_rr_dequeue(ms);
  62                 w |= gsm48_mmxx_dequeue(ms);
  63                 w |= gsm48_mmr_dequeue(ms);
  64                 w |= gsm48_mmevent_dequeue(ms);
  65                 w |= gsm322_plmn_dequeue(ms);
  66                 w |= gsm322_cs_dequeue(ms);
  67                 w |= gsm_sim_job_dequeue(ms);
  68                 w |= mncc_dequeue(ms);
  69                 if (w)
  70                         work = 1;
  71         } while (w);
  72         return work;
  73 }
  74
  75 static int signal_cb(unsigned int subsys, unsigned int signal,
  76                      void *handler_data, void *signal_data)
  77 {
  78         struct osmocom_ms *ms;
  79         struct gsm_settings *set;
  80         struct msgb *nmsg;
  81
  82         if (subsys != SS_L1CTL)
  83                 return 0;
  84
  85         switch (signal) {
  86         case S_L1CTL_RESET:
  87                 if (mobile_started)
  88                         break;
  89
  90                 ms = signal_data;
  91                 set = &ms->settings;
  92
  93                 /* insert test card, if enabled */
  94                 switch (set->sim_type) {
  95                 case GSM_SIM_TYPE_READER:
  96                         /* trigger sim card reader process */
  97                         gsm_subscr_simcard(ms);
  98                         break;
  99                 case GSM_SIM_TYPE_TEST:
 100                         gsm_subscr_testcard(ms, set->test_rplmn_mcc,
 101                                                 set->test_rplmn_mnc);
 102                         break;
 103                 default:
 104                         /* no SIM */
 105                         ;
 106                 }
 107
 108                 /* start PLMN + cell selection process */
 109                 nmsg = gsm322_msgb_alloc(GSM322_EVENT_SWITCH_ON);
 110                 if (!nmsg)
 111                         return -ENOMEM;
 112                 gsm322_plmn_sendmsg(ms, nmsg);
 113                 nmsg = gsm322_msgb_alloc(GSM322_EVENT_SWITCH_ON);
 114                 if (!nmsg)
 115                         return -ENOMEM;
 116                 gsm322_cs_sendmsg(ms, nmsg);
 117
 118                 mobile_started = 1;
 119         }
 120         return 0;
 121 }
 122
 123 int mobile_exit(struct osmocom_ms *ms)
 124 {
 125         struct gsm48_mmlayer *mm = &ms->mmlayer;
 126
 127         if (!mm->power_off && mobile_started) {
 128                 struct msgb *nmsg;
 129
 130                 mm->power_off = 1;
 131                 nmsg = gsm48_mmevent_msgb_alloc(GSM48_MM_EVENT_IMSI_DETACH);
 132                 if (!nmsg)
 133                         return -ENOMEM;
 134                 gsm48_mmevent_msg(mm->ms, nmsg);
 135
 136                 return -EBUSY;
 137         }
 138
 139         /* in case there is a lockup during exit */
 140         signal(SIGINT, SIG_DFL);
 141         signal(SIGHUP, SIG_DFL);
 142         signal(SIGTERM, SIG_DFL);
 143         signal(SIGPIPE, SIG_DFL);
 144
 145         unregister_signal_handler(SS_L1CTL, &signal_cb, NULL);
 146         gps_close();
 147         gsm322_exit(ms);
 148         gsm48_mm_exit(ms);
 149         gsm48_rr_exit(ms);
 150         gsm_subscr_exit(ms);
 151         gsm48_cc_exit(ms);
 152         gsm_sim_exit(ms);
 153
 154         printf("Power off!\n");
 155
 156         return 0;
 157 }
 158
 159 static struct vty_app_info vty_info = {
 160         .name = "OsmocomBB",
 161         .version = PACKAGE_VERSION,
 162         .go_parent_cb = ms_vty_go_parent,
 163 };
 164
 165 int l23_app_init(struct osmocom_ms *ms)
 166 {
 167         int rc;
 168         struct telnet_connection dummy_conn;
 169
 170 //      log_parse_category_mask(stderr_target, "DRSL:DLAPDM:DCS:DPLMN:DRR:DMM:DSIM:DCC:DMNCC:DPAG:DSUM");
 171         log_parse_category_mask(stderr_target, "DCS:DPLMN:DRR:DMM:DSIM:DCC:DMNCC:DPAG:DSUM");
 172
 173         srand(time(NULL));
 174
 175         gsm_sim_init(ms);
 176         gsm_settings_init(ms);
 177         gsm48_cc_init(ms);
 178         gsm_support_init(ms);
 179         gsm_subscr_init(ms);
 180         gsm48_rr_init(ms);
 181         gsm48_mm_init(ms);
 182         INIT_LLIST_HEAD(&ms->trans_list);
 183         ms->cclayer.mncc_recv = mncc_recv_mobile;
 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         rc = vty_read_config_file(config_file, &dummy_conn);
 194         if (rc < 0) {
 195                 fprintf(stderr, "Failed to parse the config file: '%s'\n",
 196                         config_file);
 197                 fprintf(stderr, "Please check or create config file using: "
 198                         "'touch %s'\n", config_file);
 199                 return rc;
 200         }
 201         telnet_init(l23_ctx, NULL, vty_port);
 202         if (rc < 0)
 203                 return rc;
 204         printf("VTY available on port %u.\n", vty_port);
 205
 206         gsm_random_imei(&ms->settings);
 207
 208         l1ctl_tx_reset_req(ms, L1CTL_RES_T_FULL);
 209         printf("Mobile initialized, please start phone now!\n");
 210         return 0;
 211 }
 212