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 /* read options
  16  *
  17  * read options from options.conf
  18  */
  19 int gsm_conf(struct gsm_conf *gsm_conf, char *conf_error)
  20 {
  21         FILE *fp=NULL;
  22         char filename[128];
  23         char *p;
  24         char option[32];
  25         char params[11][256];
  26         int pnum;
  27         unsigned int line,i;
  28         char buffer[256];
  29
  30         /* set defaults */
  31         SCPY(gsm_conf->debug, "");
  32         SCPY(gsm_conf->hlr, "hlr.sqlite3");
  33         SCPY(gsm_conf->openbsc_cfg, "openbsc.cfg");
  34         gsm_conf->reject_cause = 0;
  35         gsm_conf->keep_l2 = 0;
  36
  37         SPRINT(filename, "%s/gsm.conf", CONFIG_DATA);
  38
  39         if (!(fp=fopen(filename,"r"))) {
  40                 UPRINT(conf_error, "Cannot open %s\n",filename);
  41                 return(0);
  42         }
  43
  44         line=0;
  45         while((GETLINE(buffer, fp))) {
  46                 line++;
  47                 p=buffer;
  48
  49                 while(*p <= 32) { /* skip spaces */
  50                         if (*p == 0)
  51                                 break;
  52                         p++;
  53                 }
  54                 if (*p==0 || *p=='#') /* ignore comments and empty line */
  55                         continue;
  56
  57                 option[0]=0;
  58                 i=0; /* read option */
  59                 while(*p > 32) {
  60                         if (i+1 >= sizeof(option)) {
  61                                 UPRINT(conf_error, "Error in %s (line %d): option too long.\n",filename,line);
  62                                 goto error;
  63                         }
  64                         option[i+1] = '\0';
  65                         option[i++] = *p++;
  66                 }
  67
  68                 while(*p <= 32) { /* skip spaces */
  69                         if (*p == 0)
  70                                 break;
  71                         p++;
  72                 }
  73
  74                 params[0][0] = 0;
  75                 pnum = 0;
  76                 while(*p!=0 && *p!='#' && pnum < 10) { /* param */
  77                         i=0; /* read param */
  78                         while(*p > 32) {
  79                                 if (i+1 >= sizeof(params[pnum])) {
  80                                         UPRINT(conf_error, "Error in %s (line %d): param too long.\n",filename,line);
  81                                         goto error;
  82                                 }
  83                                 params[pnum][i+1] = '\0';
  84                                 params[pnum][i++] = *p++;
  85                         }
  86                         while(*p <= 32) { /* skip spaces */
  87                                 if (*p == 0)
  88                                         break;
  89                                 p++;
  90                         }
  91                         pnum++;
  92                         params[pnum][0] = 0;
  93                 }
  94
  95                 /* at this point we have option and param */
  96
  97                 /* check option */
  98                 if (!strcmp(option,"debug")) {
  99                         if (params[0][0]==0) {
 100                                 UPRINT(conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 101                                 goto error;
 102                         }
 103                         SCPY(gsm_conf->debug, params[0]);
 104
 105                 } else
 106                 if (!strcmp(option,"config")) {
 107                         if (params[0][0]==0) {
 108                                 UPRINT(conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 109                                 goto error;
 110                         }
 111                         SCPY(gsm_conf->openbsc_cfg, params[0]);
 112
 113                 } else
 114                 if (!strcmp(option,"hlr")) {
 115                         if (params[0][0]==0) {
 116                                 UPRINT(conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 117                                 goto error;
 118                         }
 119                         SCPY(gsm_conf->hlr, params[0]);
 120
 121                 } else
 122                 if (!strcmp(option,"reject-cause")) {
 123                         UPRINT(conf_error, "Option '%s' in gsm.conf has moved to openbsc.cfg", option);
 124                         goto error;
 125                 } else
 126                 if (!strcmp(option,"allow-all")) {
 127                         gsm_conf->allow_all = 1;
 128                 } else
 129                 if (!strcmp(option,"keep-l2")) {
 130                         gsm_conf->keep_l2 = 1;
 131
 132                 } else
 133                 if (!strcmp(option,"pcapfile")) {
 134                         if (params[0][0]==0) {
 135                                 UPRINT(conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 136                                 goto error;
 137                         }
 138                         SCPY(gsm_conf->pcapfile, params[0]);
 139                 } else {
 140                         UPRINT(conf_error, "Error in %s (line %d): wrong option keyword %s.\n", filename,line,option);
 141                         goto error;
 142                 }
 143         }
 144
 145         if (fp) fclose(fp);
 146         return(1);
 147 error:
 148         if (fp) fclose(fp);
 149         return(0);
 150 }
 151
 152