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/gsm_data.h"
  14
  15
  16 char *gsm_conf_error = (char *)"";
  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                 SPRINT(gsm_conf_error, "Cannot open %s\n",filename);
  53                 return(0);
  54         }
  55
  56         line=0;
  57         while((fgets(buffer,sizeof(buffer),fp))) {
  58                 line++;
  59                 buffer[sizeof(buffer)-1]=0;
  60                 if (buffer[0]) buffer[strlen(buffer)-1]=0;
  61                 p=buffer;
  62
  63                 while(*p <= 32) { /* skip spaces */
  64                         if (*p == 0)
  65                                 break;
  66                         p++;
  67                 }
  68                 if (*p==0 || *p=='#') /* ignore comments and empty line */
  69                         continue;
  70
  71                 option[0]=0;
  72                 i=0; /* read option */
  73                 while(*p > 32) {
  74                         if (i+1 >= sizeof(option)) {
  75                                 SPRINT(gsm_conf_error, "Error in %s (line %d): option too long.\n",filename,line);
  76                                 goto error;
  77                         }
  78                         option[i+1] = '\0';
  79                         option[i++] = *p++;
  80                 }
  81
  82                 while(*p <= 32) { /* skip spaces */
  83                         if (*p == 0)
  84                                 break;
  85                         p++;
  86                 }
  87
  88                 params[0][0] = 0;
  89                 pnum = 0;
  90                 while(*p!=0 && *p!='#' && pnum < 10) { /* param */
  91                         i=0; /* read param */
  92                         while(*p > 32) {
  93                                 if (i+1 >= sizeof(params[pnum])) {
  94                                         SPRINT(gsm_conf_error, "Error in %s (line %d): param too long.\n",filename,line);
  95                                         goto error;
  96                                 }
  97                                 params[pnum][i+1] = '\0';
  98                                 params[pnum][i++] = *p++;
  99                         }
 100                         while(*p <= 32) { /* skip spaces */
 101                                 if (*p == 0)
 102                                         break;
 103                                 p++;
 104                         }
 105                         pnum++;
 106                         params[pnum][0] = 0;
 107                 }
 108
 109                 /* at this point we have option and param */
 110
 111                 /* check option */
 112                 if (!strcmp(option,"debug")) {
 113                         if (params[0][0]==0) {
 114                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 115                                 goto error;
 116                         }
 117                         SCPY(gsm_conf->debug, params[0]);
 118
 119                 } else
 120                 if (!strcmp(option,"interface-bsc")) {
 121                         if (params[0][0]==0) {
 122                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 123                                 goto error;
 124                         }
 125                         SCPY(gsm_conf->interface_bsc, params[0]);
 126
 127                 } else
 128                 if (!strcmp(option,"interface-lcr")) {
 129                         if (params[0][0]==0) {
 130                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 131                                 goto error;
 132                         }
 133                         SCPY(gsm_conf->interface_lcr, params[0]);
 134
 135                 } else
 136                 if (!strcmp(option,"short-name")) {
 137                         if (params[0][0]==0) {
 138                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 139                                 goto error;
 140                         }
 141                         SCPY(gsm_conf->short_name, params[0]);
 142
 143                 } else
 144                 if (!strcmp(option,"long-name")) {
 145                         if (params[0][0]==0) {
 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->long_name, params[0]);
 150
 151                 } else
 152                 if (!strcmp(option,"mcc")) {
 153                         if (params[0][0]==0) {
 154                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 155                                 goto error;
 156                         }
 157                         gsm_conf->mcc = atoi(params[0]);
 158
 159                 } else
 160                 if (!strcmp(option,"mnc")) {
 161                         if (params[0][0]==0) {
 162                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 163                                 goto error;
 164                         }
 165                         gsm_conf->mnc = atoi(params[0]);
 166
 167                 } else
 168                 if (!strcmp(option,"lac")) {
 169                         if (params[0][0]==0) {
 170                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 171                                 goto error;
 172                         }
 173                         gsm_conf->lac = atoi(params[0]);
 174
 175                 } else
 176                 if (!strcmp(option,"hlr")) {
 177                         if (params[0][0]==0) {
 178                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 179                                 goto error;
 180                         }
 181                         SCPY(gsm_conf->hlr, params[0]);
 182
 183                 } else
 184                 if (!strcmp(option,"allow-all")) {
 185                         gsm_conf->allow_all = 1;
 186                 } else
 187                 if (!strcmp(option,"keep-l2")) {
 188                         gsm_conf->keep_l2 = 1;
 189
 190                 } else
 191                 if (!strcmp(option,"no-mergency-shutdown")) {
 192                         gsm_conf->noemergshut = 1;
 193                 } else
 194                 if (!strcmp(option,"pcapfile")) {
 195                         if (params[0][0]==0) {
 196                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 197                                 goto error;
 198                         }
 199                         SCPY(gsm_conf->pcapfile, params[0]);
 200                 } else
 201                 if (!strcmp(option,"bts")) {
 202                         if (gsm_conf->numbts == 8) {
 203                                 SPRINT(gsm_conf_error, "Error in %s (line %d): too many BTS defined.\n",filename,line);
 204                                 goto error;
 205                         }
 206                         if (params[0][0]==0) {
 207                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter <bts-type> for option %s missing.\n",filename,line,option);
 208                                 goto error;
 209                         }
 210                         if (params[1][0]==0) {
 211                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter <card number> for option %s missing.\n",filename,line,option);
 212                                 goto error;
 213                         }
 214                         if (params[2][0]==0) {
 215                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter <frequency> for option %s missing.\n",filename,line,option);
 216                                 goto error;
 217                         }
 218                         if (!strcmp(params[0], "bs11")) {
 219                                 gsm_conf->bts[gsm_conf->numbts].type = GSM_BTS_TYPE_BS11;
 220                         } else {
 221                                 SPRINT(gsm_conf_error, "Error in %s (line %d): unknown BTS type '%s'.\n",filename,line,params[0]);
 222                                 goto error;
 223                         }
 224                         gsm_conf->bts[gsm_conf->numbts].card = atoi(params[1]);
 225                         gsm_conf->bts[gsm_conf->numbts].numtrx = 0;
 226                         while (params[gsm_conf->bts[gsm_conf->numbts].numtrx+2][0]) {
 227                                 if (gsm_conf->bts[gsm_conf->numbts].numtrx == 8) {
 228                                         SPRINT(gsm_conf_error, "Error in %s (line %d): too many frequencies defined.\n",filename,line);
 229                                         goto error;
 230                                 }
 231                                 gsm_conf->bts[gsm_conf->numbts].frequency[gsm_conf->bts[gsm_conf->numbts].numtrx++] = atoi(params[gsm_conf->bts[gsm_conf->numbts].numtrx+2]);
 232                         }
 233                         gsm_conf->numbts++;
 234                 } else {
 235                         SPRINT(gsm_conf_error, "Error in %s (line %d): wrong option keyword %s.\n", filename,line,option);
 236                         goto error;
 237                 }
 238         }
 239
 240         if (fp) fclose(fp);
 241         return(1);
 242 error:
 243         if (fp) fclose(fp);
 244         return(0);
 245 }
 246
 247