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->hlr, "hlr.sqlite3");
  37         SCPY(gsm_conf->openbsc_cfg, "openbsc.cfg");
  38         gsm_conf->reject_cause = 0;
  39         gsm_conf->keep_l2 = 0;
  40         gsm_conf->noemergshut = 0;
  41
  42         SPRINT(filename, "%s/gsm.conf", CONFIG_DATA);
  43
  44         if (!(fp=fopen(filename,"r"))) {
  45                 SPRINT(gsm_conf_error, "Cannot open %s\n",filename);
  46                 return(0);
  47         }
  48
  49         line=0;
  50         while((GETLINE(buffer, fp))) {
  51                 line++;
  52                 p=buffer;
  53
  54                 while(*p <= 32) { /* skip spaces */
  55                         if (*p == 0)
  56                                 break;
  57                         p++;
  58                 }
  59                 if (*p==0 || *p=='#') /* ignore comments and empty line */
  60                         continue;
  61
  62                 option[0]=0;
  63                 i=0; /* read option */
  64                 while(*p > 32) {
  65                         if (i+1 >= sizeof(option)) {
  66                                 SPRINT(gsm_conf_error, "Error in %s (line %d): option too long.\n",filename,line);
  67                                 goto error;
  68                         }
  69                         option[i+1] = '\0';
  70                         option[i++] = *p++;
  71                 }
  72
  73                 while(*p <= 32) { /* skip spaces */
  74                         if (*p == 0)
  75                                 break;
  76                         p++;
  77                 }
  78
  79                 params[0][0] = 0;
  80                 pnum = 0;
  81                 while(*p!=0 && *p!='#' && pnum < 10) { /* param */
  82                         i=0; /* read param */
  83                         while(*p > 32) {
  84                                 if (i+1 >= sizeof(params[pnum])) {
  85                                         SPRINT(gsm_conf_error, "Error in %s (line %d): param too long.\n",filename,line);
  86                                         goto error;
  87                                 }
  88                                 params[pnum][i+1] = '\0';
  89                                 params[pnum][i++] = *p++;
  90                         }
  91                         while(*p <= 32) { /* skip spaces */
  92                                 if (*p == 0)
  93                                         break;
  94                                 p++;
  95                         }
  96                         pnum++;
  97                         params[pnum][0] = 0;
  98                 }
  99
 100                 /* at this point we have option and param */
 101
 102                 /* check option */
 103                 if (!strcmp(option,"debug")) {
 104                         if (params[0][0]==0) {
 105                                 SPRINT(gsm_conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 106                                 goto error;
 107                         }
 108                         SCPY(gsm_conf->debug, params[0]);
 109
 110                 } else
 111                 if (!strcmp(option,"interface-bsc")) {
 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->interface_bsc, params[0]);
 117
 118                 } else
 119                 if (!strcmp(option,"interface-lcr")) {
 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_lcr, params[0]);
 125
 126                 } else
 127                 if (!strcmp(option,"config")) {
 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->openbsc_cfg, params[0]);
 133
 134                 } else
 135                 if (!strcmp(option,"hlr")) {
 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->hlr, params[0]);
 141
 142                 } else
 143                 if (!strcmp(option,"reject-cause")) {
 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                         gsm_conf->reject_cause = atoi(params[0]);
 149
 150                 } else
 151                 if (!strcmp(option,"allow-all")) {
 152                         gsm_conf->allow_all = 1;
 153                 } else
 154                 if (!strcmp(option,"keep-l2")) {
 155                         gsm_conf->keep_l2 = 1;
 156
 157                 } else
 158                 if (!strcmp(option,"no-mergency-shutdown")) {
 159                         gsm_conf->noemergshut = 1;
 160                 } else
 161                 if (!strcmp(option,"rtp-proxy")) {
 162                         gsm_conf->rtp_proxy = 1;
 163                 } else
 164                 if (!strcmp(option,"pcapfile")) {
 165                         if (params[0][0]==0) {
 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->pcapfile, params[0]);
 170                 } else {
 171                         SPRINT(gsm_conf_error, "Error in %s (line %d): wrong option keyword %s.\n", filename,line,option);
 172                         goto error;
 173                 }
 174         }
 175
 176         if (fp) fclose(fp);
 177         return(1);
 178 error:
 179         if (fp) fclose(fp);
 180         return(0);
 181 }
 182
 183