gsm_conf.c

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** PBX4Linux                                                                 **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** reading options.conf and filling structure                                **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 #include "main.h"
  13 #include "openbsc/openbsc.h"
  14
  15
  16 char *gsm_conf_error = "";
  17
  18 /* read options
  19  *
  20  * read options from options.conf
  21  */
  22 int gsm_conf(struct gsm_conf *gsm_conf)
  23 {
  24         FILE *fp=NULL;
  25         char filename[128];
  26         char *p;
  27         char option[32];
  28         char params[11][256];
  29         int pnum;
  30         unsigned int line,i;
  31         char buffer[256];
  32
  33         /* set defaults */
  34         SCPY(gsm_conf->debug, "");
  35         SCPY(gsm_conf->interface_bsc, "mISDN_l1loop.1");
  36         SCPY(gsm_conf->interface_lcr, "mISDN_l1loop.2");
  37         SCPY(gsm_conf->short_name, "LCR");
  38         SCPY(gsm_conf->long_name, "Linux-Call-Router");
  39         gsm_conf->mcc = 1;
  40         gsm_conf->mnc = 1;
  41         gsm_conf->lac = 1;
  42         SCPY(gsm_conf->hlr, "hlr.sqlite3");
  43         gsm_conf->allow_all = 0;
  44         gsm_conf->keep_l2 = 0;
  45         gsm_conf->numbts = 0;
  46         //gsm_conf->bts[xx]
  47         gsm_conf->noemergshut = 0;
  48
  49         SPRINT(filename, "%s/gsm.conf", CONFIG_DATA);
  50
  51         if (!(fp=fopen(filename,"r")))
  52         {
  53                 SPRINT(gsm_conf_error, "Cannot open %s\n",filename);
  54                 return(0);
  55         }
  56
  57         line=0;
  58         while((fgets(buffer,sizeof(buffer),fp)))
  59         {
  60                 line++;
  61                 buffer[sizeof(buffer)-1]=0;
  62                 if (buffer[0]) buffer[strlen(buffer)-1]=0;
  63                 p=buffer;
  64
  65                 while(*p <= 32) /* skip spaces */
  66                 {
  67                         if (*p == 0)
  68                                 break;
  69                         p++;
  70                 }
  71                 if (*p==0 || *p=='#') /* ignore comments and empty line */
  72                         continue;
  73
  74                 option[0]=0;
  75                 i=0; /* read option */
  76                 while(*p > 32)
  77                 {
  78                         if (i+1 >= sizeof(option))
  79                         {
  80                                 SPRINT(gsm_conf_error, "Error in %s (line %d): option too long.\n",filename,line);
  81                                 goto error;
  82                         }
  83                         option[i+1] = '\0';
  84                         option[i++] = *p++;
  85                 }
  86
  87                 while(*p <= 32) /* skip spaces */
  88                 {
  89                         if (*p == 0)
  90                                 break;
  91                         p++;
  92                 }
  93
  94                 params[0][0] = 0;
  95                 pnum = 0;
  96                 while(*p!=0 && *p!='#' && pnum < 10) /* param */
  97                 {
  98                         i=0; /* read param */
  99                         while(*p > 32)
 100                         {
 101                                 if (i+1 >= sizeof(params[pnum]))
 102                                 {
 103                                         SPRINT(gsm_conf_error, "Error in %s (line %d): param too long.\n",filename,line);
 104                                         goto error;
 105                                 }
 106                                 params[pnum][i+1] = '\0';
 107                                 params[pnum][i++] = *p++;
 108                         }
 109                         while(*p <= 32) /* skip spaces */
 110                         {
 111                                 if (*p == 0)
 112                                         break;
 113                                 p++;
 114                         }
 115                         pnum++;
 116                         params[pnum][0] = 0;
 117                 }
 118
 119                 /* at this point we have option and param */
 120
 121                 /* check option */
 122                 if (!strcmp(option,"debug"))
 123                 {
 124                         if (params[0][0]==0)
 125                         {
 126                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 127                                 goto error;
 128                         }
 129                         SCPY(gsm_conf->debug, params[0]);
 130
 131                 } else
 132                 if (!strcmp(option,"interface-bsc"))
 133                 {
 134                         if (params[0][0]==0)
 135                         {
 136                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 137                                 goto error;
 138                         }
 139                         SCPY(gsm_conf->interface_bsc, params[0]);
 140
 141                 } else
 142                 if (!strcmp(option,"interface-lcr"))
 143                 {
 144                         if (params[0][0]==0)
 145                         {
 146                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 147                                 goto error;
 148                         }
 149                         SCPY(gsm_conf->interface_lcr, params[0]);
 150
 151                 } else
 152                 if (!strcmp(option,"short-name"))
 153                 {
 154                         if (params[0][0]==0)
 155                         {
 156                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 157                                 goto error;
 158                         }
 159                         SCPY(gsm_conf->short_name, params[0]);
 160
 161                 } else
 162                 if (!strcmp(option,"long-name"))
 163                 {
 164                         if (params[0][0]==0)
 165                         {
 166                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 167                                 goto error;
 168                         }
 169                         SCPY(gsm_conf->long_name, params[0]);
 170
 171                 } else
 172                 if (!strcmp(option,"mcc"))
 173                 {
 174                         if (params[0][0]==0)
 175                         {
 176                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 177                                 goto error;
 178                         }
 179                         gsm_conf->mcc = atoi(params[0]);
 180
 181                 } else
 182                 if (!strcmp(option,"mnc"))
 183                 {
 184                         if (params[0][0]==0)
 185                         {
 186                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 187                                 goto error;
 188                         }
 189                         gsm_conf->mnc = atoi(params[0]);
 190
 191                 } else
 192                 if (!strcmp(option,"lac"))
 193                 {
 194                         if (params[0][0]==0)
 195                         {
 196                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 197                                 goto error;
 198                         }
 199                         gsm_conf->lac = atoi(params[0]);
 200
 201                 } else
 202                 if (!strcmp(option,"hlr"))
 203                 {
 204                         if (params[0][0]==0)
 205                         {
 206                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 207                                 goto error;
 208                         }
 209                         SCPY(gsm_conf->hlr, params[0]);
 210
 211                 } else
 212                 if (!strcmp(option,"allow-all"))
 213                 {
 214                         gsm_conf->allow_all = 1;
 215                 } else
 216                 if (!strcmp(option,"keep-l2"))
 217                 {
 218                         gsm_conf->keep_l2 = 1;
 219
 220                 } else
 221                 if (!strcmp(option,"no-mergency-shutdown"))
 222                 {
 223                         gsm_conf->noemergshut = 1;
 224                 } else
 225                 if (!strcmp(option,"bts"))
 226                 {
 227                         if (gsm_conf->numbts == 8)
 228                         {
 229                                 SPRINT(gsm_conf_error, "Error in %s (line %d): too many BTS defined.\n",filename,line);
 230                                 goto error;
 231                         }
 232                         if (params[0][0]==0)
 233                         {
 234                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter <bts-type> for option %s missing.\n",filename,line,option);
 235                                 goto error;
 236                         }
 237                         if (params[1][0]==0)
 238                         {
 239                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter <card number> for option %s missing.\n",filename,line,option);
 240                                 goto error;
 241                         }
 242                         if (params[2][0]==0)
 243                         {
 244                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter <frequency> for option %s missing.\n",filename,line,option);
 245                                 goto error;
 246                         }
 247                         if (!strcmp(params[0], "bs11"))
 248                         {
 249                                 gsm_conf->bts[gsm_conf->numbts].type = GSM_BTS_TYPE_BS11;
 250                         } else {
 251                                 SPRINT(gsm_conf_error, "Error in %s (line %d): unknown BTS type '%s'.\n",filename,line,params[0]);
 252                                 goto error;
 253                         }
 254                         gsm_conf->bts[gsm_conf->numbts].card = atoi(params[1]);
 255                         gsm_conf->bts[gsm_conf->numbts].numtrx = 0;
 256                         while (params[gsm_conf->bts[gsm_conf->numbts].numtrx+2][0])
 257                         {
 258                                 if (gsm_conf->bts[gsm_conf->numbts].numtrx == 8)
 259                                 {
 260                                         SPRINT(gsm_conf_error, "Error in %s (line %d): too many frequencies defined.\n",filename,line);
 261                                         goto error;
 262                                 }
 263                                 gsm_conf->bts[gsm_conf->numbts].frequency[gsm_conf->bts[gsm_conf->numbts].numtrx++] = atoi(params[gsm_conf->bts[gsm_conf->numbts].numtrx+2]);
 264                         }
 265                         gsm_conf->numbts++;
 266                 } else
 267                 {
 268                         SPRINT(gsm_conf_error, "Error in %s (line %d): wrong option keyword %s.\n", filename,line,option);
 269                         goto error;
 270                 }
 271         }
 272
 273         if (fp) fclose(fp);
 274         return(1);
 275 error:
 276         if (fp) fclose(fp);
 277         return(0);
 278 }
 279
 280