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->interface_bsc, "mISDN_l1loop.1");
  33         SCPY(gsm_conf->interface_lcr, "mISDN_l1loop.2");
  34         SCPY(gsm_conf->hlr, "hlr.sqlite3");
  35         SCPY(gsm_conf->openbsc_cfg, "openbsc.cfg");
  36         gsm_conf->reject_cause = 0;
  37         gsm_conf->keep_l2 = 0;
  38         gsm_conf->noemergshut = 0;
  39
  40         SPRINT(filename, "%s/gsm.conf", CONFIG_DATA);
  41
  42         if (!(fp=fopen(filename,"r"))) {
  43                 UPRINT(conf_error, "Cannot open %s\n",filename);
  44                 return(0);
  45         }
  46
  47         line=0;
  48         while((GETLINE(buffer, fp))) {
  49                 line++;
  50                 p=buffer;
  51
  52                 while(*p <= 32) { /* skip spaces */
  53                         if (*p == 0)
  54                                 break;
  55                         p++;
  56                 }
  57                 if (*p==0 || *p=='#') /* ignore comments and empty line */
  58                         continue;
  59
  60                 option[0]=0;
  61                 i=0; /* read option */
  62                 while(*p > 32) {
  63                         if (i+1 >= sizeof(option)) {
  64                                 UPRINT(conf_error, "Error in %s (line %d): option too long.\n",filename,line);
  65                                 goto error;
  66                         }
  67                         option[i+1] = '\0';
  68                         option[i++] = *p++;
  69                 }
  70
  71                 while(*p <= 32) { /* skip spaces */
  72                         if (*p == 0)
  73                                 break;
  74                         p++;
  75                 }
  76
  77                 params[0][0] = 0;
  78                 pnum = 0;
  79                 while(*p!=0 && *p!='#' && pnum < 10) { /* param */
  80                         i=0; /* read param */
  81                         while(*p > 32) {
  82                                 if (i+1 >= sizeof(params[pnum])) {
  83                                         UPRINT(conf_error, "Error in %s (line %d): param too long.\n",filename,line);
  84                                         goto error;
  85                                 }
  86                                 params[pnum][i+1] = '\0';
  87                                 params[pnum][i++] = *p++;
  88                         }
  89                         while(*p <= 32) { /* skip spaces */
  90                                 if (*p == 0)
  91                                         break;
  92                                 p++;
  93                         }
  94                         pnum++;
  95                         params[pnum][0] = 0;
  96                 }
  97
  98                 /* at this point we have option and param */
  99
 100                 /* check option */
 101                 if (!strcmp(option,"debug")) {
 102                         if (params[0][0]==0) {
 103                                 UPRINT(conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 104                                 goto error;
 105                         }
 106                         SCPY(gsm_conf->debug, params[0]);
 107
 108                 } else
 109                 if (!strcmp(option,"interface-bsc")) {
 110                         if (params[0][0]==0) {
 111                                 UPRINT(conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 112                                 goto error;
 113                         }
 114                         SCPY(gsm_conf->interface_bsc, params[0]);
 115
 116                 } else
 117                 if (!strcmp(option,"interface-lcr")) {
 118                         if (params[0][0]==0) {
 119                                 UPRINT(conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 120                                 goto error;
 121                         }
 122                         SCPY(gsm_conf->interface_lcr, params[0]);
 123
 124                 } else
 125                 if (!strcmp(option,"config")) {
 126                         if (params[0][0]==0) {
 127                                 UPRINT(conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 128                                 goto error;
 129                         }
 130                         SCPY(gsm_conf->openbsc_cfg, params[0]);
 131
 132                 } else
 133                 if (!strcmp(option,"hlr")) {
 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->hlr, params[0]);
 139
 140                 } else
 141                 if (!strcmp(option,"reject-cause")) {
 142                         UPRINT(conf_error, "Option '%s' in gsm.conf has moved to openbsc.cfg", option);
 143                         goto error;
 144                 } else
 145                 if (!strcmp(option,"allow-all")) {
 146                         gsm_conf->allow_all = 1;
 147                 } else
 148                 if (!strcmp(option,"keep-l2")) {
 149                         gsm_conf->keep_l2 = 1;
 150
 151                 } else
 152                 if (!strcmp(option,"no-mergency-shutdown")) {
 153                         gsm_conf->noemergshut = 1;
 154                 } else
 155                 if (!strcmp(option,"pcapfile")) {
 156                         if (params[0][0]==0) {
 157                                 UPRINT(conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 158                                 goto error;
 159                         }
 160                         SCPY(gsm_conf->pcapfile, params[0]);
 161                 } else {
 162                         UPRINT(conf_error, "Error in %s (line %d): wrong option keyword %s.\n", filename,line,option);
 163                         goto error;
 164                 }
 165         }
 166
 167         if (fp) fclose(fp);
 168         return(1);
 169 error:
 170         if (fp) fclose(fp);
 171         return(0);
 172 }
 173
 174