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
  39         SPRINT(filename, "%s/gsm.conf", CONFIG_DATA);
  40
  41         if (!(fp=fopen(filename,"r"))) {
  42                 UPRINT(conf_error, "Cannot open %s\n",filename);
  43                 return(0);
  44         }
  45
  46         line=0;
  47         while((GETLINE(buffer, fp))) {
  48                 line++;
  49                 p=buffer;
  50
  51                 while(*p <= 32) { /* skip spaces */
  52                         if (*p == 0)
  53                                 break;
  54                         p++;
  55                 }
  56                 if (*p==0 || *p=='#') /* ignore comments and empty line */
  57                         continue;
  58
  59                 option[0]=0;
  60                 i=0; /* read option */
  61                 while(*p > 32) {
  62                         if (i+1 >= sizeof(option)) {
  63                                 UPRINT(conf_error, "Error in %s (line %d): option too long.\n",filename,line);
  64                                 goto error;
  65                         }
  66                         option[i+1] = '\0';
  67                         option[i++] = *p++;
  68                 }
  69
  70                 while(*p <= 32) { /* skip spaces */
  71                         if (*p == 0)
  72                                 break;
  73                         p++;
  74                 }
  75
  76                 params[0][0] = 0;
  77                 pnum = 0;
  78                 while(*p!=0 && *p!='#' && pnum < 10) { /* param */
  79                         i=0; /* read param */
  80                         while(*p > 32) {
  81                                 if (i+1 >= sizeof(params[pnum])) {
  82                                         UPRINT(conf_error, "Error in %s (line %d): param too long.\n",filename,line);
  83                                         goto error;
  84                                 }
  85                                 params[pnum][i+1] = '\0';
  86                                 params[pnum][i++] = *p++;
  87                         }
  88                         while(*p <= 32) { /* skip spaces */
  89                                 if (*p == 0)
  90                                         break;
  91                                 p++;
  92                         }
  93                         pnum++;
  94                         params[pnum][0] = 0;
  95                 }
  96
  97                 /* at this point we have option and param */
  98
  99                 /* check option */
 100                 if (!strcmp(option,"debug")) {
 101                         if (params[0][0]==0) {
 102                                 UPRINT(conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 103                                 goto error;
 104                         }
 105                         SCPY(gsm_conf->debug, params[0]);
 106
 107                 } else
 108                 if (!strcmp(option,"interface-bsc")) {
 109                         if (params[0][0]==0) {
 110                                 UPRINT(conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 111                                 goto error;
 112                         }
 113                         SCPY(gsm_conf->interface_bsc, params[0]);
 114
 115                 } else
 116                 if (!strcmp(option,"interface-lcr")) {
 117                         if (params[0][0]==0) {
 118                                 UPRINT(conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 119                                 goto error;
 120                         }
 121                         SCPY(gsm_conf->interface_lcr, params[0]);
 122
 123                 } else
 124                 if (!strcmp(option,"config")) {
 125                         if (params[0][0]==0) {
 126                                 UPRINT(conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 127                                 goto error;
 128                         }
 129                         SCPY(gsm_conf->openbsc_cfg, params[0]);
 130
 131                 } else
 132                 if (!strcmp(option,"hlr")) {
 133                         if (params[0][0]==0) {
 134                                 UPRINT(conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 135                                 goto error;
 136                         }
 137                         SCPY(gsm_conf->hlr, params[0]);
 138
 139                 } else
 140                 if (!strcmp(option,"reject-cause")) {
 141                         UPRINT(conf_error, "Option '%s' in gsm.conf has moved to openbsc.cfg", option);
 142                         goto error;
 143                 } else
 144                 if (!strcmp(option,"allow-all")) {
 145                         gsm_conf->allow_all = 1;
 146                 } else
 147                 if (!strcmp(option,"keep-l2")) {
 148                         gsm_conf->keep_l2 = 1;
 149
 150                 } else
 151                 if (!strcmp(option,"pcapfile")) {
 152                         if (params[0][0]==0) {
 153                                 UPRINT(conf_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 154                                 goto error;
 155                         }
 156                         SCPY(gsm_conf->pcapfile, params[0]);
 157                 } else {
 158                         UPRINT(conf_error, "Error in %s (line %d): wrong option keyword %s.\n", filename,line,option);
 159                         goto error;
 160                 }
 161         }
 162
 163         if (fp) fclose(fp);
 164         return(1);
 165 error:
 166         if (fp) fclose(fp);
 167         return(0);
 168 }
 169
 170