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
  28 #include <osmocom/bb/common/osmocom_data.h>
  29 #include <osmocom/bb/common/l1l2_interface.h>
  30 #include <osmocom/bb/common/l1ctl.h>
  31 #include <osmocom/bb/common/lapdm.h>
  32 #include <osmocom/bb/common/logging.h>
  33 #include <osmocom/bb/mobile/gsm48_rr.h>
  34 #include <osmocom/bb/mobile/vty.h>
  35 #include <osmocom/vty/telnet_interface.h>
  36
  37 #include <osmocore/msgb.h>
  38 #include <osmocore/talloc.h>
  39 #include <osmocore/select.h>
  40
  41 int mncc_recv_mobile(struct osmocom_ms *ms, int msg_type, void *arg);
  42 int mncc_recv_dummy(struct osmocom_ms *ms, int msg_type, void *arg);
  43 extern int (*l23_app_exit) (struct osmocom_ms *ms, int force);
  44
  45 int mobile_work(struct osmocom_ms *ms)
  46 {
  47         int work = 0, w;
  48
  49         do {
  50                 w = 0;
  51                 w |= gsm48_rsl_dequeue(ms);
  52                 w |= gsm48_rr_dequeue(ms);
  53                 w |= gsm48_mmxx_dequeue(ms);
  54                 w |= gsm48_mmr_dequeue(ms);
  55                 w |= gsm48_mmevent_dequeue(ms);
  56                 w |= gsm322_plmn_dequeue(ms);
  57                 w |= gsm322_cs_dequeue(ms);
  58                 w |= gsm_sim_job_dequeue(ms);
  59                 w |= mncc_dequeue(ms);
  60                 if (w)
  61                         work = 1;
  62         } while (w);
  63         return work;
  64 }
  65
  66 int mobile_signal_cb(unsigned int subsys, unsigned int signal,
  67                      void *handler_data, void *signal_data)
  68 {
  69         struct osmocom_ms *ms;
  70         struct gsm_settings *set;
  71         struct msgb *nmsg;
  72
  73         if (subsys != SS_L1CTL)
  74                 return 0;
  75
  76         switch (signal) {
  77         case S_L1CTL_RESET:
  78                 ms = signal_data;
  79                 set = &ms->settings;
  80
  81                 if (ms->started)
  82                         break;
  83
  84                 /* insert test card, if enabled */
  85                 switch (set->sim_type) {
  86                 case GSM_SIM_TYPE_READER:
  87                         /* trigger sim card reader process */
  88                         gsm_subscr_simcard(ms);
  89                         break;
  90                 case GSM_SIM_TYPE_TEST:
  91                         gsm_subscr_testcard(ms, set->test_rplmn_mcc,
  92                                                 set->test_rplmn_mnc);
  93                         break;
  94                 default:
  95                         /* no SIM, trigger PLMN selection process */
  96                         nmsg = gsm322_msgb_alloc(GSM322_EVENT_SWITCH_ON);
  97                         if (!nmsg)
  98                                 return -ENOMEM;
  99                         gsm322_plmn_sendmsg(ms, nmsg);
 100                         nmsg = gsm322_msgb_alloc(GSM322_EVENT_SWITCH_ON);
 101                         if (!nmsg)
 102                                 return -ENOMEM;
 103                         gsm322_cs_sendmsg(ms, nmsg);
 104                 }
 105
 106                 ms->started = 1;
 107         }
 108         return 0;
 109 }
 110
 111 int mobile_exit(struct osmocom_ms *ms, int force)
 112 {
 113         struct gsm48_mmlayer *mm = &ms->mmlayer;
 114
 115         if (!force && ms->started) {
 116                 struct msgb *nmsg;
 117
 118                 ms->shutdown = 1; /* going down */
 119                 nmsg = gsm48_mmevent_msgb_alloc(GSM48_MM_EVENT_IMSI_DETACH);
 120                 if (!nmsg)
 121                         return -ENOMEM;
 122                 gsm48_mmevent_msg(mm->ms, nmsg);
 123
 124                 return -EBUSY;
 125         }
 126
 127         gsm322_exit(ms);
 128         gsm48_mm_exit(ms);
 129         gsm48_rr_exit(ms);
 130         gsm_subscr_exit(ms);
 131         gsm48_cc_exit(ms);
 132         gsm_sim_exit(ms);
 133         lapdm_exit(&ms->l2_entity.lapdm_acch);
 134         lapdm_exit(&ms->l2_entity.lapdm_dcch);
 135
 136         ms->shutdown = 2; /* being down */
 137         vty_notify(ms, NULL);
 138         vty_notify(ms, "Power off!\n");
 139         printf("Power off! (MS %s)\n", ms->name);
 140
 141         return 0;
 142 }
 143
 144 int l23_app_init(struct osmocom_ms *ms)
 145 {
 146         int rc;
 147
 148         lapdm_init(&ms->l2_entity.lapdm_dcch, ms);
 149         lapdm_init(&ms->l2_entity.lapdm_acch, ms);
 150         gsm_sim_init(ms);
 151         gsm48_cc_init(ms);
 152         gsm_subscr_init(ms);
 153         gsm48_rr_init(ms);
 154         gsm48_mm_init(ms);
 155         INIT_LLIST_HEAD(&ms->trans_list);
 156         gsm322_init(ms);
 157
 158         rc = layer2_open(ms, ms->settings.layer2_socket_path);
 159         if (rc < 0) {
 160                 fprintf(stderr, "Failed during layer2_open()\n");
 161                 ms->l2_wq.bfd.fd = -1;
 162                 l23_app_exit(ms, 1);
 163                 return rc;
 164         }
 165
 166 #if 0
 167         rc = sap_open(ms, ms->settings.sap_socket_path);
 168         if (rc < 0) {
 169                 fprintf(stderr, "Failed during sap_open(), no SIM reader\n");
 170                 ms->sap_wq.bfd.fd = -1;
 171                 l23_app_exit(ms, 1);
 172                 return rc;
 173         }
 174 #endif
 175
 176         if (ms->settings.ch_cap == GSM_CAP_SDCCH)
 177                 ms->cclayer.mncc_recv = mncc_recv_dummy;
 178         else
 179                 ms->cclayer.mncc_recv = mncc_recv_mobile;
 180
 181         gsm_random_imei(&ms->settings);
 182
 183         ms->shutdown = 0;
 184         ms->started = 0;
 185
 186         l1ctl_tx_reset_req(ms, L1CTL_RES_T_FULL);
 187         printf("Mobile '%s' initialized, please start phone now!\n", ms->name);
 188         return 0;
 189 }
 190