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/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
  49 static int started = 0;
  50
  51 int mncc_recv_mobile(struct osmocom_ms *ms, int msg_type, void *arg);
  52
  53 int mobile_work(struct osmocom_ms *ms)
  54 {
  55         int work = 0, w;
  56
  57         do {
  58                 w = 0;
  59                 w |= gsm48_rsl_dequeue(ms);
  60                 w |= gsm48_rr_dequeue(ms);
  61                 w |= gsm48_mmxx_dequeue(ms);
  62                 w |= gsm48_mmr_dequeue(ms);
  63                 w |= gsm48_mmevent_dequeue(ms);
  64                 w |= gsm322_plmn_dequeue(ms);
  65                 w |= gsm322_cs_dequeue(ms);
  66                 w |= mncc_dequeue(ms);
  67                 if (w)
  68                         work = 1;
  69         } while (w);
  70         return work;
  71 }
  72
  73 static int signal_cb(unsigned int subsys, unsigned int signal,
  74                      void *handler_data, void *signal_data)
  75 {
  76         struct osmocom_ms *ms;
  77         struct gsm_settings *set;
  78         struct msgb *nmsg;
  79
  80         if (subsys != SS_L1CTL)
  81                 return 0;
  82
  83         switch (signal) {
  84         case S_L1CTL_RESET:
  85                 if (started)
  86                         break;
  87                 started = 1;
  88                 ms = signal_data;
  89                 set = &ms->settings;
  90                 /* insert test card, if enabled */
  91                 if (set->simtype == GSM_SIM_TYPE_TEST)
  92                         gsm_subscr_testcard(ms, set->test_rplmn_mcc,
  93                                                 set->test_rplmn_mnc);
  94                 /* start PLMN + cell selection process */
  95                 nmsg = gsm322_msgb_alloc(GSM322_EVENT_SWITCH_ON);
  96                 if (!nmsg)
  97                         return -ENOMEM;
  98                 gsm322_plmn_sendmsg(ms, nmsg);
  99                 nmsg = gsm322_msgb_alloc(GSM322_EVENT_SWITCH_ON);
 100                 if (!nmsg)
 101                         return -ENOMEM;
 102                 gsm322_cs_sendmsg(ms, nmsg);
 103         }
 104         return 0;
 105 }
 106
 107 int mobile_exit(struct osmocom_ms *ms)
 108 {
 109         struct gsm48_mmlayer *mm = &ms->mmlayer;
 110
 111         if (!mm->power_off && started) {
 112                 struct msgb *nmsg;
 113
 114                 mm->power_off = 1;
 115                 nmsg = gsm48_mmevent_msgb_alloc(GSM48_MM_EVENT_IMSI_DETACH);
 116                 if (!nmsg)
 117                         return -ENOMEM;
 118                 gsm48_mmevent_msg(mm->ms, nmsg);
 119
 120                 return -EBUSY;
 121         }
 122
 123         /* in case there is a lockup during exit */
 124         signal(SIGINT, SIG_DFL);
 125         signal(SIGHUP, SIG_DFL);
 126         signal(SIGTERM, SIG_DFL);
 127         signal(SIGPIPE, SIG_DFL);
 128
 129         unregister_signal_handler(SS_L1CTL, &signal_cb, NULL);
 130         gsm322_exit(ms);
 131         gsm48_mm_exit(ms);
 132         gsm48_rr_exit(ms);
 133         gsm_subscr_exit(ms);
 134         gsm48_cc_exit(ms);
 135
 136         printf("Power off!\n");
 137
 138         return 0;
 139 }
 140
 141 static struct vty_app_info vty_info = {
 142         .name = "OsmocomBB",
 143         .version = PACKAGE_VERSION,
 144         .go_parent_cb = ms_vty_go_parent,
 145 };
 146
 147 int l23_app_init(struct osmocom_ms *ms)
 148 {
 149         int rc;
 150         struct telnet_connection dummy_conn;
 151
 152 //      log_parse_category_mask(stderr_target, "DRSL:DLAPDM:DCS:DPLMN:DRR:DMM:DCC:DMNCC:DPAG:DSUM");
 153         log_parse_category_mask(stderr_target, "DCS:DPLMN:DRR:DMM:DCC:DMNCC:DPAG:DSUM");
 154
 155         srand(time(NULL));
 156
 157         gsm_settings_init(ms);
 158         gsm48_cc_init(ms);
 159         gsm_support_init(ms);
 160         gsm_subscr_init(ms);
 161         gsm48_rr_init(ms);
 162         gsm48_mm_init(ms);
 163         INIT_LLIST_HEAD(&ms->trans_list);
 164         ms->cclayer.mncc_recv = mncc_recv_mobile;
 165         gsm322_init(ms);
 166
 167         l23_app_work = mobile_work;
 168         register_signal_handler(SS_L1CTL, &signal_cb, NULL);
 169         l23_app_exit = mobile_exit;
 170
 171         vty_init(&vty_info);
 172         ms_vty_init();
 173         dummy_conn.priv = NULL;
 174         rc = vty_read_config_file(config_file, &dummy_conn);
 175         if (rc < 0) {
 176                 fprintf(stderr, "Failed to parse the config file: '%s'\n",
 177                         config_file);
 178                 fprintf(stderr, "Please check or create config file using: "
 179                         "'touch %s'\n", config_file);
 180                 return rc;
 181         }
 182         telnet_init(l23_ctx, NULL, vty_port);
 183         if (rc < 0)
 184                 return rc;
 185         printf("VTY available on port %u.\n", vty_port);
 186
 187         gsm_random_imei(&ms->settings);
 188
 189         l1ctl_tx_reset_req(ms, L1CTL_RES_T_FULL);
 190         printf("Mobile initialized, please start phone now!\n");
 191         return 0;
 192 }
 193