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